diff --git a/Classes/Constants.php b/Classes/Constants.php
index 0d3762ff..4a665b2e 100644
--- a/Classes/Constants.php
+++ b/Classes/Constants.php
@@ -66,5 +66,6 @@ class Constants
         'blog_commentswidget'       => -1600000017,
         'blog_archivewidget'        => -1600000018,
         'blog_feedwidget'           => -1600000019,
+        'blog_filter'               => -1600000020,
     ];
 }
diff --git a/Classes/Controller/PostController.php b/Classes/Controller/PostController.php
index 24b568cf..a1cc7ec7 100644
--- a/Classes/Controller/PostController.php
+++ b/Classes/Controller/PostController.php
@@ -12,6 +12,7 @@
 
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
+use T3G\AgencyPack\Blog\Domain\Factory\PostFilterFactory;
 use T3G\AgencyPack\Blog\Domain\Model\Author;
 use T3G\AgencyPack\Blog\Domain\Model\Category;
 use T3G\AgencyPack\Blog\Domain\Model\Post;
@@ -27,6 +28,7 @@
 use T3G\AgencyPack\Blog\Utility\ArchiveUtility;
 use TYPO3\CMS\Core\Http\NormalizedParams;
 use TYPO3\CMS\Core\Site\Entity\SiteLanguage;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
 use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
 use TYPO3\CMS\Extbase\Pagination\QueryResultPaginator;
 use TYPO3\CMS\Extbase\Persistence\QueryResultInterface;
@@ -251,6 +253,29 @@ public function listPostsByTagAction(?Tag $tag = null, int $currentPage = 1): Re
         return $this->htmlResponse();
     }
 
+    /**
+     * Show a list of posts by given filter.
+     */
+    public function listPostsByFilterAction(int $currentPage = 1): ResponseInterface
+    {
+        $factory = GeneralUtility::makeInstance(PostFilterFactory::class, $this->categoryRepository, $this->tagRepository);
+        $filter = $factory->getFilterFromRequest($this->request);
+        $posts = $this->postRepository->findAllByFilter($filter);
+        $pagination = $this->getPagination($posts, $currentPage);
+
+        $this->view->assign('type', 'byfilter');
+        $this->view->assign('posts', $posts);
+        $this->view->assign('pagination', $pagination);
+        $this->view->assign('filter', $filter);
+        $this->view->assign('categories', $this->categoryRepository->findAll());
+        $this->view->assign('tags', $this->tagRepository->findAll());
+
+        MetaTagService::set(MetaTagService::META_TITLE, $filter->getTitle());
+        MetaTagService::set(MetaTagService::META_DESCRIPTION, $filter->getDescription());
+
+        return $this->htmlResponse();
+    }
+
     /**
      * Sidebar action.
      */
diff --git a/Classes/Domain/Factory/PostFilterFactory.php b/Classes/Domain/Factory/PostFilterFactory.php
new file mode 100644
index 00000000..52ec13c7
--- /dev/null
+++ b/Classes/Domain/Factory/PostFilterFactory.php
@@ -0,0 +1,47 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Domain\Factory;
+
+use T3G\AgencyPack\Blog\Domain\Filter\Post\CategoryTag;
+use T3G\AgencyPack\Blog\Domain\Filter\PostFilter;
+use T3G\AgencyPack\Blog\Domain\Repository\CategoryRepository;
+use T3G\AgencyPack\Blog\Domain\Repository\TagRepository;
+use TYPO3\CMS\Core\SingletonInterface;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
+
+/**
+ * The post filter factory sets filter values from the request.
+ */
+class PostFilterFactory implements SingletonInterface
+{
+    protected CategoryRepository $categoryRepository;
+
+    protected TagRepository $tagRepository;
+
+    public function __construct(CategoryRepository $categoryRepository, TagRepository $tagRepository)
+    {
+        $this->categoryRepository = $categoryRepository;
+        $this->tagRepository = $tagRepository;
+    }
+
+    public function getFilterFromRequest(RequestInterface $request): PostFilter
+    {
+        // Currently there is only one filter implementation.
+        $filter = new CategoryTag();
+        if ($request->hasArgument('category')) {
+            $filter->setCategory($this->categoryRepository->findByUid((int)$request->getArgument('category')));
+        }
+        if ($request->hasArgument('tag')) {
+            $filter->setTag($this->tagRepository->findByUid((int)$request->getArgument('tag')));
+        }
+        return $filter;
+    }
+}
diff --git a/Classes/Domain/Filter/Post/AbstractBase.php b/Classes/Domain/Filter/Post/AbstractBase.php
new file mode 100644
index 00000000..38523ac4
--- /dev/null
+++ b/Classes/Domain/Filter/Post/AbstractBase.php
@@ -0,0 +1,29 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Domain\Filter\Post;
+
+use T3G\AgencyPack\Blog\Domain\Filter\PostFilter;
+
+/**
+ * Base class for all post filters.
+ */
+abstract class AbstractBase implements PostFilter
+{
+    /**
+     * The class name (without namespace) is used as the filter's name.
+     */
+    public function getName(): string
+    {
+        $classWithNamespace = get_class($this);
+        $rightBackslash = strrpos($classWithNamespace, '\\') ?? 0;
+        return substr($classWithNamespace, $rightBackslash > 0 ? ++$rightBackslash : $rightBackslash);
+    }
+}
diff --git a/Classes/Domain/Filter/Post/CategoryTag.php b/Classes/Domain/Filter/Post/CategoryTag.php
new file mode 100644
index 00000000..976b4598
--- /dev/null
+++ b/Classes/Domain/Filter/Post/CategoryTag.php
@@ -0,0 +1,99 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Domain\Filter\Post;
+
+use T3G\AgencyPack\Blog\Domain\Model\Category;
+use T3G\AgencyPack\Blog\Domain\Model\Tag;
+use TYPO3\CMS\Extbase\Persistence\Exception\InvalidQueryException;
+use TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface;
+use TYPO3\CMS\Extbase\Persistence\QueryInterface;
+
+/**
+ * This filter combines one selected Category and one selected Tag (both optional).
+ */
+class CategoryTag extends AbstractBase
+{
+    protected ?Category $category = null;
+
+    protected ?Tag $tag = null;
+
+    /**
+     * Title is simply the concatenated Category and Tag titles (separated by a SPACE character).
+     */
+    public function getTitle(): string
+    {
+        if ($this->category) {
+            if ($this->tag) {
+                return trim($this->category->getTitle() . ' ' . $this->tag->getTitle());
+            } else {
+                return $this->category->getTitle();
+            }
+        }
+        if ($this->tag) {
+            return $this->tag->getTitle();
+        }
+        return '';
+    }
+
+    /**
+     * Description is simply the concatenated Category and Tag titles (separated by a SPACE character).
+     */
+    public function getDescription(): string
+    {
+        if ($this->category) {
+            if ($this->tag) {
+                return trim($this->category->getDescription() . ' ' . $this->tag->getDescription());
+            } else {
+                return $this->category->getDescription();
+            }
+        }
+        if ($this->tag) {
+            return $this->tag->getDescription();
+        }
+        return '';
+    }
+
+    /**
+     * @return array<ComparisonInterface>
+     * @throws InvalidQueryException
+     */
+    public function getConstraints(QueryInterface $query): array
+    {
+        $constraints = [];
+        if ($this->category) {
+            $constraints[] = $query->contains('categories', $this->category);
+        }
+        if ($this->tag) {
+            $constraints[] = $query->contains('tags', $this->tag);
+        }
+        return $constraints;
+    }
+
+    public function getCategory(): ?Category
+    {
+        return $this->category;
+    }
+
+    public function setCategory(?Category $category): void
+    {
+        $this->category = $category;
+    }
+
+    public function getTag(): ?Tag
+    {
+        return $this->tag;
+    }
+
+    public function setTag(?Tag $tag): void
+    {
+        $this->tag = $tag;
+    }
+}
diff --git a/Classes/Domain/Filter/PostFilter.php b/Classes/Domain/Filter/PostFilter.php
new file mode 100644
index 00000000..1e04c4ba
--- /dev/null
+++ b/Classes/Domain/Filter/PostFilter.php
@@ -0,0 +1,42 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Domain\Filter;
+
+use TYPO3\CMS\Extbase\Persistence\Generic\Qom\ComparisonInterface;
+use TYPO3\CMS\Extbase\Persistence\QueryInterface;
+
+/**
+ * Interface for post filters used in the listPostsByFilterAction.
+ */
+interface PostFilter
+{
+    /**
+     * The name of this filter, used for rendering the corresponding Fluid partial.
+     */
+    public function getName(): string;
+
+    /**
+     * The title of the filter result, used in MetaTagService.
+     */
+    public function getTitle(): string;
+
+    /**
+     * A description of the filter result, used in MetaTagService.
+     */
+    public function getDescription(): string;
+
+    /**
+     * Apply current filter values in given Posts query.
+     *
+     * @return array<ComparisonInterface>
+     */
+    public function getConstraints(QueryInterface $query): array;
+}
diff --git a/Classes/Domain/Repository/PostRepository.php b/Classes/Domain/Repository/PostRepository.php
index 84fab51c..16261d00 100644
--- a/Classes/Domain/Repository/PostRepository.php
+++ b/Classes/Domain/Repository/PostRepository.php
@@ -13,6 +13,7 @@
 use Psr\Http\Message\ServerRequestInterface;
 use T3G\AgencyPack\Blog\Constants;
 use T3G\AgencyPack\Blog\DataTransferObject\PostRepositoryDemand;
+use T3G\AgencyPack\Blog\Domain\Filter\PostFilter;
 use T3G\AgencyPack\Blog\Domain\Model\Author;
 use T3G\AgencyPack\Blog\Domain\Model\Category;
 use T3G\AgencyPack\Blog\Domain\Model\Post;
@@ -226,6 +227,18 @@ public function findAllByTag(Tag $tag): QueryResultInterface
         return $query->matching($query->logicalAnd(...$constraints))->execute();
     }
 
+    public function findAllByFilter(PostFilter $filter): QueryResultInterface
+    {
+        $query = $this->createQuery();
+        $constraints = array_merge($this->defaultConstraints, $filter->getConstraints($query));
+        $storagePidConstraint = $this->getStoragePidConstraint();
+        if ($storagePidConstraint instanceof ComparisonInterface) {
+            $constraints[] = $storagePidConstraint;
+        }
+
+        return $query->matching($query->logicalAnd(...$constraints))->execute();
+    }
+
     public function findByMonthAndYear(int $year, int $month = null): QueryResultInterface
     {
         $query = $this->createQuery();
diff --git a/Configuration/TCA/Overrides/tt_content.php b/Configuration/TCA/Overrides/tt_content.php
index c16ce498..f141b6ec 100644
--- a/Configuration/TCA/Overrides/tt_content.php
+++ b/Configuration/TCA/Overrides/tt_content.php
@@ -57,6 +57,14 @@
 );
 $GLOBALS['TCA']['tt_content']['types']['list']['subtypes_excludelist']['blog_archive'] = 'select_key';
 
+\TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerPlugin(
+    'Blog',
+    'Filter',
+    'LLL:EXT:blog/Resources/Private/Language/locallang_db.xlf:plugin.blog_filter.title',
+    'plugin-blog-filter'
+);
+$GLOBALS['TCA']['tt_content']['types']['list']['subtypes_excludelist']['blog_filter'] = 'select_key';
+
 \TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerPlugin(
     'Blog',
     'Sidebar',
diff --git a/Configuration/TsConfig/Page/Wizards.tsconfig b/Configuration/TsConfig/Page/Wizards.tsconfig
index 71555cd9..780b854d 100644
--- a/Configuration/TsConfig/Page/Wizards.tsconfig
+++ b/Configuration/TsConfig/Page/Wizards.tsconfig
@@ -59,6 +59,15 @@ mod.wizards.newContentElement.wizardItems.blog {
                 list_type = blog_archive
             }
         }
+        blog_filter {
+            iconIdentifier = plugin-blog-filter
+            title = LLL:EXT:blog/Resources/Private/Language/locallang_db.xlf:plugin.blog_filter.title
+            description = LLL:EXT:blog/Resources/Private/Language/locallang_db.xlf:plugin.blog_filter.description
+            tt_content_defValues {
+                CType = list
+                list_type = blog_filter
+            }
+        }
         blog_demandedposts {
             iconIdentifier = plugin-blog-demandedposts
             title = LLL:EXT:blog/Resources/Private/Language/locallang_db.xlf:plugin.blog_demandedposts.title
diff --git a/Configuration/TypoScript/Static/setup.typoscript b/Configuration/TypoScript/Static/setup.typoscript
index f76db4b4..b19a72a2 100644
--- a/Configuration/TypoScript/Static/setup.typoscript
+++ b/Configuration/TypoScript/Static/setup.typoscript
@@ -440,3 +440,8 @@ blog_rss_author < blog_rss_posts
 blog_rss_author.typeNum = 250
 blog_rss_author.10 < tt_content.list.20.blog_authorposts
 blog_rss_author.10.format = rss
+
+blog_rss_filter < blog_rss_posts
+blog_rss_filter.typeNum = 260
+blog_rss_filter.10 < tt_content.list.20.blog_filter
+blog_rss_filter.10.format = rss
diff --git a/Resources/Private/Language/locallang.xlf b/Resources/Private/Language/locallang.xlf
index 67c07b44..bc84c3ab 100644
--- a/Resources/Private/Language/locallang.xlf
+++ b/Resources/Private/Language/locallang.xlf
@@ -58,6 +58,9 @@
             <trans-unit id="headline.rssfeed" xml:space="preserve">
                 <source>RSS-Feeds</source>
             </trans-unit>
+            <trans-unit id="headline.filter" xml:space="preserve">
+                <source>Filter</source>
+            </trans-unit>
 
             <!-- Form -->
             <trans-unit id="form.comment.name" xml:space="preserve">
@@ -210,6 +213,14 @@
                 <source>Show Archive</source>
             </trans-unit>
 
+            <!-- Filter -->
+            <trans-unit id="filter.category.all" xml:space="preserve">
+                <source>All categories</source>
+            </trans-unit>
+            <trans-unit id="filter.tag.all" xml:space="preserve">
+                <source>All tags</source>
+            </trans-unit>
+
             <!-- Backend -->
             <trans-unit id="backend.headline.setup_wizard" xml:space="preserve">
                 <source>SetupWizard</source>
diff --git a/Resources/Private/Language/locallang_db.xlf b/Resources/Private/Language/locallang_db.xlf
index acebf728..703db03e 100644
--- a/Resources/Private/Language/locallang_db.xlf
+++ b/Resources/Private/Language/locallang_db.xlf
@@ -47,6 +47,12 @@
             <trans-unit id="plugin.blog_tag.description" xml:space="preserve">
                 <source>Allows the users to show all posts tagged with a specific keyword.</source>
             </trans-unit>
+            <trans-unit id="plugin.blog_filter.title" xml:space="preserve">
+                <source>Blog: List by filter</source>
+            </trans-unit>
+            <trans-unit id="plugin.blog_filter.description" xml:space="preserve">
+                <source>Allows the users to show a list of filtered posts.</source>
+            </trans-unit>
             <trans-unit id="plugin.blog_archive.title" xml:space="preserve">
                 <source>Blog: Archive</source>
             </trans-unit>
diff --git a/Resources/Private/Partials/Filter/Categories.html b/Resources/Private/Partials/Filter/Categories.html
new file mode 100644
index 00000000..ed3886a1
--- /dev/null
+++ b/Resources/Private/Partials/Filter/Categories.html
@@ -0,0 +1,28 @@
+<ul class="blogfilter blogfilter__categories">
+    <f:if condition="{filter.category}">
+        <f:then>
+            <li class="blogfilter__category all">
+                <f:link.action action="listPostsByFilter" arguments="{tag: filter.tag}">
+                    <f:translate key="filter.category.all"/>
+                </f:link.action>
+            </li>
+        </f:then>
+        <f:else>
+            <li class="blogfilter__category all active">
+                <f:translate key="filter.category.all"/>
+            </li>
+        </f:else>
+    </f:if>
+    <f:for each="{categories}" as="category">
+        <f:if condition="{category.uid} == {filter.category.uid}">
+            <f:then>
+                <li class="blogfilter__category one active">{category.title}</li>
+            </f:then>
+            <f:else>
+                <li class="blogfilter__category one">
+                    <f:link.action action="listPostsByFilter" arguments="{category: category, tag: filter.tag}">{category.title}</f:link.action>
+                </li>
+            </f:else>
+        </f:if>
+    </f:for>
+</ul>
diff --git a/Resources/Private/Partials/Filter/Post/CategoryTag.html b/Resources/Private/Partials/Filter/Post/CategoryTag.html
new file mode 100644
index 00000000..c93cca68
--- /dev/null
+++ b/Resources/Private/Partials/Filter/Post/CategoryTag.html
@@ -0,0 +1,21 @@
+<header class="blogarchiveheader blogarchiveheader--filter">
+    <h1 class="blogarchiveheader__title">
+        <span class="blogarchiveheader__titletext">
+            <f:translate key="headline.filter" />
+        </span>
+    </h1>
+
+    <h2 class="blogarchiveheader__title">
+        <span class="blogarchiveheader__titletext">
+            <f:translate key="headline.categories" />
+        </span>
+    </h2>
+    <f:render partial="Filter/Categories" arguments="{_all}"/>
+
+    <h2 class="blogarchiveheader__title">
+        <span class="blogarchiveheader__titletext">
+            <f:translate key="headline.tags" />
+        </span>
+    </h2>
+    <f:render partial="Filter/Tags" arguments="{_all}"/>
+</header>
diff --git a/Resources/Private/Partials/Filter/Tags.html b/Resources/Private/Partials/Filter/Tags.html
new file mode 100644
index 00000000..28c5797a
--- /dev/null
+++ b/Resources/Private/Partials/Filter/Tags.html
@@ -0,0 +1,28 @@
+<ul class="blogfilter blogfilter__tags">
+    <f:if condition="{filter.tag}">
+        <f:then>
+            <li class="blogfilter__tag all">
+                <f:link.action action="listPostsByFilter" arguments="{category: filter.category}">
+                    <f:translate key="filter.tag.all"/>
+                </f:link.action>
+            </li>
+        </f:then>
+        <f:else>
+            <li class="blogfilter__tag all active">
+                <f:translate key="filter.tag.all"/>
+            </li>
+        </f:else>
+    </f:if>
+    <f:for each="{tags}" as="tag">
+        <f:if condition="{tag.uid} == {filter.tag.uid}">
+            <f:then>
+                <li class="blogfilter__tag one active">{tag.title}</li>
+            </f:then>
+            <f:else>
+                <li class="blogfilter__tag one">
+                    <f:link.action action="listPostsByFilter" arguments="{category: filter.category, tag: tag}">{tag.title}</f:link.action>
+                </li>
+            </f:else>
+        </f:if>
+    </f:for>
+</ul>
diff --git a/Resources/Private/Scss/frontend/components/blog/_filter.scss b/Resources/Private/Scss/frontend/components/blog/_filter.scss
new file mode 100644
index 00000000..7faa320f
--- /dev/null
+++ b/Resources/Private/Scss/frontend/components/blog/_filter.scss
@@ -0,0 +1,27 @@
+/**
+ * Filter
+ */
+
+.blogfilter__categories {
+    .blogfilter__category {
+        display: inline-block;
+        &.one {
+            margin: 1rem 0 1rem 1rem;
+        }
+        &.active {
+            font-weight: bold;
+        }
+    }
+}
+
+.blogfilter__tags {
+    .blogfilter__tag {
+        display: inline-block;
+        &.one {
+            margin: 1rem 0 1rem 1rem;
+        }
+        &.active {
+            font-weight: bold;
+        }
+    }
+}
diff --git a/Resources/Private/Scss/frontend/frontend.scss b/Resources/Private/Scss/frontend/frontend.scss
index 7545fd0b..4abac228 100644
--- a/Resources/Private/Scss/frontend/frontend.scss
+++ b/Resources/Private/Scss/frontend/frontend.scss
@@ -6,6 +6,7 @@
 @import "components/blog/avatar";
 @import "components/blog/archive";
 @import "components/blog/badge";
+@import "components/blog/filter";
 @import "components/blog/icons";
 @import "components/blog/image";
 @import "components/blog/linklist";
diff --git a/Resources/Private/Templates/Post/ListPostsByFilter.html b/Resources/Private/Templates/Post/ListPostsByFilter.html
new file mode 100644
index 00000000..67db052c
--- /dev/null
+++ b/Resources/Private/Templates/Post/ListPostsByFilter.html
@@ -0,0 +1,5 @@
+<f:layout name="Default" />
+<f:section name="Content">
+    <f:render partial="Filter/Post/{filter.name}" arguments="{_all}"/>
+    <f:render partial="List" arguments="{_all}"/>
+</f:section>
diff --git a/Resources/Private/Templates/Post/ListPostsByFilter.rss b/Resources/Private/Templates/Post/ListPostsByFilter.rss
new file mode 100644
index 00000000..f32d842e
--- /dev/null
+++ b/Resources/Private/Templates/Post/ListPostsByFilter.rss
@@ -0,0 +1,4 @@
+<f:layout name="Default" />
+<f:section name="Content">
+    <f:render partial="List" arguments="{_all}" />
+</f:section>
diff --git a/Resources/Public/Css/frontend.min.css b/Resources/Public/Css/frontend.min.css
index f7e2fe95..4db1317f 100644
--- a/Resources/Public/Css/frontend.min.css
+++ b/Resources/Public/Css/frontend.min.css
@@ -1 +1 @@
-.blogcontainer{display:grid;grid-column-gap:40px}@media(min-width: 992px){.blogcontainer{grid-template-columns:1fr 300px}}.bloglist__item{margin-top:1.5rem}.bloglist__item:first-of-type{margin-top:0}.bloglist__image{margin-bottom:1rem}.bloglist__imageavatar{margin-left:auto;margin-right:auto}.bloglist__description{margin-top:.5rem;margin-bottom:.5rem}.blogavatar{display:block;border-radius:50%;overflow:hidden}.blogarchiveheader{margin-bottom:2.5rem}.blogarchiveheader__title{margin-bottom:.5rem}.blogarchiveheader__titletext{margin-right:.5rem}.blogarchivefooter{margin-top:2.5rem}.blogbadge{display:inline-block;padding:.5em;border-radius:2px;border:1px solid;line-height:1em}.blogbadge:hover{text-decoration:none}.blogicon{top:.125em;position:relative;display:-webkit-inline-box;display:-ms-inline-flexbox;display:inline-flex;-ms-flex-item-align:center;align-self:center}.blogicon svg{height:1em;width:1em}.blogimage img{max-width:100%;height:auto}.bloglinklist{padding:0;margin:0;list-style:none}.bloglinklist__itemcount{margin-left:.25rem}.bloglinklist__itemcount:before{content:"("}.bloglinklist__itemcount:after{content:")"}.blogpagination__list{margin-top:1.5rem;margin-bottom:0;display:-webkit-box;display:-ms-flexbox;display:flex;padding-left:0;list-style:none}.blogpagination__item:first-child .blogpagination__link{margin-left:0}.blogpagination__item--active{font-weight:bold}.blogpagination__link{display:block;padding:.5rem .75rem;margin-left:-1px;line-height:1;border:1px solid}.blogpagination__item--disabled .blogpagination__link{pointer-events:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:auto}.blogtaglist{padding:0;margin:-0.25rem 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diff --git a/Resources/Public/Icons/plugin-blog-filter.svg b/Resources/Public/Icons/plugin-blog-filter.svg
new file mode 100644
index 00000000..6f2250eb
--- /dev/null
+++ b/Resources/Public/Icons/plugin-blog-filter.svg
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 23.0.6, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Ebene_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 16 16" enable-background="new 0 0 16 16" xml:space="preserve">
+<polygon fill="#3F7437" points="14.3,3.2 8.3,1.5 8,1.4 7.7,1.5 1.7,3.2 1,3.4 1,4.1 1,11.9 1,12.6 1.7,12.8 7.7,14.5 8,14.6 
+	8.3,14.5 14.3,12.8 15,12.6 15,11.9 15,4.1 15,3.4 "/>
+<polygon fill="#7FC96F" points="8,2.4 13,3.9 8,5.3 2.9,3.9 "/>
+<polygon fill="#5BA34F" points="2,4.7 7.5,6.2 7.5,13.4 2,11.9 "/>
+<polygon fill="#5BA34F" points="8.5,13.4 8.5,6.2 14,4.6 14,11.9 "/>
+</svg>
diff --git a/Tests/AssertionsTrait.php b/Tests/AssertionsTrait.php
new file mode 100644
index 00000000..0d882cfd
--- /dev/null
+++ b/Tests/AssertionsTrait.php
@@ -0,0 +1,67 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Tests;
+
+use \ArrayAccess as ArrayAccess;
+
+trait AssertionsTrait
+{
+    /**
+     * Assert that SUT is an array of a specific length.
+     *
+     * Optionally, SUT is asserted to contain only elements of given type.
+     *
+     * @param int $count Expected array length
+     * @param mixed $actual SUT
+     * @param string|null $type Optional expected type of elements in SUT
+     */
+    protected static function assertArray(int $count, $actual, ?string $type = null): void
+    {
+        self::assertIsArray($actual);
+        self::assertCount($count, $actual);
+        if ($type) {
+            self::assertContainsOnly($type, $actual);
+        }
+    }
+
+    /**
+     * Assert that SUT is an array of a specific length and contains only arrays.
+     *
+     * Optionally, SUT is asserted to have only given indices.
+     *
+     * @param int $count Expected array length
+     * @param mixed $actual SUT
+     * @param int|string|array $indices Optional expected array indices
+     */
+    protected static function assertArrayOfArrays(int $count, $actual, $indices = []): void
+    {
+        self::assertArray($count, $actual, 'array');
+        if (!is_array($indices)) {
+            $indices = [$indices];
+        }
+        foreach ($indices as $index) {
+            self::assertArrayHasKey($index, $actual);
+        }
+    }
+
+    /**
+     * Assert that array SUT contains given key and value.
+     *
+     * @param int|string $key
+     * @param mixed $value
+     * @param array|ArrayAccess $actual
+     */
+    protected static function assertArrayKeyValue($key, $value, $actual): void
+    {
+        self::assertArrayHasKey($key, $actual);
+        self::assertSame($value, $actual[$key]);
+    }
+}
diff --git a/Tests/Unit/Domain/Factory/PostFilterFactoryTest.php b/Tests/Unit/Domain/Factory/PostFilterFactoryTest.php
new file mode 100644
index 00000000..7f2de3d3
--- /dev/null
+++ b/Tests/Unit/Domain/Factory/PostFilterFactoryTest.php
@@ -0,0 +1,163 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Tests\Unit\Domain\Factory;
+
+use T3G\AgencyPack\Blog\Domain\Factory\PostFilterFactory;
+use T3G\AgencyPack\Blog\Domain\Filter\Post\CategoryTag;
+use T3G\AgencyPack\Blog\Domain\Model\Category;
+use T3G\AgencyPack\Blog\Domain\Model\Tag;
+use T3G\AgencyPack\Blog\Domain\Repository\CategoryRepository;
+use T3G\AgencyPack\Blog\Domain\Repository\TagRepository;
+use TYPO3\CMS\Extbase\Mvc\RequestInterface;
+use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
+
+/**
+ * Tests for the Post filter factory.
+ */
+class PostFilterFactoryTest extends UnitTestCase
+{
+    protected const REQUEST_CATEGORY = 'category';
+
+    protected const REQUEST_TAG = 'tag';
+
+    /**
+     * @type array<int, string>
+     */
+    protected const CATEGORIES = [1 => 'category1', 2 => 'category2'];
+
+    /**
+     * @type array<int, string>
+     */
+    protected const TAGS = [1 => 'tag1', 2 => 'tag2'];
+
+    /**
+     * @var array<int, Category>
+     */
+    protected static array $categories = [];
+
+    /**
+     * @var array<int, Tag>
+     */
+    protected static array $tags = [];
+
+    protected static CategoryRepository $categoryRepository;
+
+    protected static TagRepository $tagRepository;
+
+    public static function setUpBeforeClass(): void
+    {
+        foreach (self::CATEGORIES as $uid => $title) {
+            $category = new Category();
+            $category->setTitle($title);
+            self::$categories[$uid] = $category;
+        }
+        $categoryRepository = self::createStub(CategoryRepository::class);
+        $categoryRepository->method('findByUid')->willReturnCallback(fn(int $uid) => self::$categories[$uid]);
+        self::$categoryRepository = $categoryRepository;
+
+        foreach (self::TAGS as $uid => $title) {
+            $tag = new Tag();
+            $tag->setTitle($title);
+            self::$tags[$uid] = $tag;
+        }
+        $tagRepository = self::createStub(TagRepository::class);
+        $tagRepository->method('findByUid')->willReturnCallback(fn(int $uid) => self::$tags[$uid]);
+        self::$tagRepository = $tagRepository;
+    }
+
+    /**
+     * @test
+     */
+    public function constructor(): PostFilterFactory
+    {
+        return new PostFilterFactory(self::$categoryRepository, self::$tagRepository);
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getFilterFromRequestForEmptyRequest(PostFilterFactory $factory): void
+    {
+        /** @var CategoryTag $filter */
+        $filter = $factory->getFilterFromRequest($this->createRequest());
+        self::assertInstanceOf(CategoryTag::class, $filter);
+        self::assertNull($filter->getCategory());
+        self::assertNull($filter->getTag());
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getFilterFromRequestForSelectedCategory(PostFilterFactory $factory): void
+    {
+        /** @var CategoryTag $filter */
+        $filter = $factory->getFilterFromRequest(
+            $this->createRequest([
+                self::REQUEST_CATEGORY => 1
+            ])
+        );
+        self::assertInstanceOf(CategoryTag::class, $filter);
+        self::assertSame(self::$categories[1], $filter->getCategory());
+        self::assertNull($filter->getTag());
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getFilterFromRequestForSelectedTag(PostFilterFactory $factory): void
+    {
+        /** @var CategoryTag $filter */
+        $filter = $factory->getFilterFromRequest(
+            $this->createRequest([
+                self::REQUEST_TAG => 2
+            ])
+        );
+        self::assertInstanceOf(CategoryTag::class, $filter);
+        self::assertNull($filter->getCategory());
+        self::assertSame(self::$tags[2], $filter->getTag());
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getFilterFromRequestForSelectedCategoryAndTag(PostFilterFactory $factory): void
+    {
+        /** @var CategoryTag $filter */
+        $filter = $factory->getFilterFromRequest(
+            $this->createRequest([
+                self::REQUEST_CATEGORY => 2,
+                self::REQUEST_TAG => 1
+            ])
+        );
+        self::assertInstanceOf(CategoryTag::class, $filter);
+        self::assertSame(self::$categories[2], $filter->getCategory());
+        self::assertSame(self::$tags[1], $filter->getTag());
+    }
+
+    protected function createRequest(array $arguments = []): RequestInterface
+    {
+        /** @var RequestInterface $request */
+        $request = self::createMock(RequestInterface::class);
+        $request
+            ->expects($this->exactly(2))
+            ->method('hasArgument')
+            ->willReturnCallback(fn(string $argumentName) => array_key_exists($argumentName, $arguments));
+        $request
+            ->expects($this->exactly(count($arguments)))
+            ->method('getArgument')
+            ->willReturnCallback(fn(string $argumentName) => $arguments[$argumentName]);
+        return $request;
+    }
+}
diff --git a/Tests/Unit/Domain/Filter/Post/CategoryTagTest.php b/Tests/Unit/Domain/Filter/Post/CategoryTagTest.php
new file mode 100644
index 00000000..e38bf591
--- /dev/null
+++ b/Tests/Unit/Domain/Filter/Post/CategoryTagTest.php
@@ -0,0 +1,252 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\Tests\Unit\Domain\Filter\Post;
+
+use T3G\AgencyPack\Blog\Domain\Filter\Post\CategoryTag;
+use T3G\AgencyPack\Blog\Domain\Filter\PostFilter;
+use T3G\AgencyPack\Blog\Domain\Model\Category;
+use T3G\AgencyPack\Blog\Domain\Model\Tag;
+use T3G\AgencyPack\Blog\Tests\AssertionsTrait;
+use TYPO3\CMS\Extbase\Persistence\QueryInterface;
+use TYPO3\TestingFramework\Core\Unit\UnitTestCase;
+
+/**
+ * Tests for Post filter CategoryTag.
+ */
+class CategoryTagTest extends UnitTestCase
+{
+    use AssertionsTrait;
+
+    protected const CATEGORY_TITLE = 'catTitle';
+
+    protected const CATEGORY_DESCRIPTION = 'The description of the category.';
+
+    protected const TAG_TITLE = 'tagTitle';
+
+    protected const TAG_DESCRIPTION = 'The description of the tag.';
+
+    protected const QUERY_CATEGORIES = 'categories';
+
+    protected const QUERY_TAGS = 'tags';
+
+    /**
+     * @test
+     */
+    public function constructor(): CategoryTag
+    {
+        $filter = new CategoryTag();
+        self::assertInstanceOf(PostFilter::class, $filter);
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getTitleForEmptyFilter(CategoryTag $filter): CategoryTag
+    {
+        self::assertEmpty($filter->getTitle());
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getDescriptionForEmptyFilter(CategoryTag $filter): CategoryTag
+    {
+        self::assertEmpty($filter->getDescription());
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getConstraintsForEmptyFilter(CategoryTag $filter): void
+    {
+        self::assertEmpty($filter->getConstraints(self::createStub(QueryInterface::class)));
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getNameReturnsClassNameWithoutNamespace(CategoryTag $filter): void
+    {
+        self::assertSame('CategoryTag', $filter->getName());
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getCategoryReturnsNullInitially(CategoryTag $filter): CategoryTag
+    {
+        self::assertNull($filter->getCategory());
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends constructor
+     */
+    public function getTagReturnsNullInitially(CategoryTag $filter): CategoryTag
+    {
+        self::assertNull($filter->getTag());
+        return $filter;
+    }
+
+    /**
+     * @test
+     */
+    public function getCategoryAfterSetCategory(): CategoryTag
+    {
+        $filter = new CategoryTag();
+        $category = $this->createCategory();
+        $filter->setCategory($category);
+        self::assertSame($category, $filter->getCategory());
+        return $filter;
+    }
+
+    /**
+     * @test
+     */
+    public function getTagAfterSetTag(): CategoryTag
+    {
+        $filter = new CategoryTag();
+        $tag = $this->createTag();
+        $filter->setTag($tag);
+        self::assertSame($tag, $filter->getTag());
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends getCategoryAfterSetCategory
+     */
+    public function getTitleForCategoryFilter(CategoryTag $filter): void
+    {
+        self::assertSame(self::CATEGORY_TITLE, $filter->getTitle());
+    }
+
+    /**
+     * @test
+     * @depends getCategoryAfterSetCategory
+     */
+    public function getDescriptionForCategoryFilter(CategoryTag $filter): void
+    {
+        self::assertSame(self::CATEGORY_DESCRIPTION, $filter->getDescription());
+    }
+
+    /**
+     * @test
+     * @depends getCategoryAfterSetCategory
+     */
+    public function getConstraintsForCategoryFilter(CategoryTag $filter): void
+    {
+        $query = self::createMock(QueryInterface::class);
+        $query
+            ->expects($this->once())
+            ->method('contains')->with(self::QUERY_CATEGORIES, $this->createCategory())
+            ->willReturnCallback(fn(string $name, Category $category) => [$name => $category->getTitle()]);
+        $constraints = $filter->getConstraints($query);
+        self::assertArrayOfArrays(1, $constraints, 0);
+        self::assertArrayKeyValue(self::QUERY_CATEGORIES, self::CATEGORY_TITLE, $constraints[0]);
+    }
+
+    /**
+     * @test
+     * @depends getTagAfterSetTag
+     */
+    public function getTitleForTagFilter(CategoryTag $filter): void
+    {
+        self::assertSame(self::TAG_TITLE, $filter->getTitle());
+    }
+
+    /**
+     * @test
+     * @depends getTagAfterSetTag
+     */
+    public function getDescriptionForTagFilter(CategoryTag $filter): void
+    {
+        self::assertSame(self::TAG_DESCRIPTION, $filter->getDescription());
+    }
+
+    /**
+     * @test
+     * @depends getTagAfterSetTag
+     */
+    public function getConstraintsForTagFilter(CategoryTag $filter): void
+    {
+        $query = self::createMock(QueryInterface::class);
+        $query
+            ->expects($this->once())
+            ->method('contains')->with(self::QUERY_TAGS, $this->createTag())
+            ->willReturnCallback(fn(string $name, Tag $tag) => [$name => $tag->getTitle()]);
+        $constraints = $filter->getConstraints($query);
+        self::assertArrayOfArrays(1, $constraints, 0);
+        self::assertArrayKeyValue(self::QUERY_TAGS, self::TAG_TITLE, $constraints[0]);
+    }
+
+    /**
+     * @test
+     * @depends getCategoryAfterSetCategory
+     */
+    public function getTitleForCategoryTagFilter(CategoryTag $filter): CategoryTag
+    {
+        $filter->setTag($this->createTag());
+        self::assertSame(self::CATEGORY_TITLE . ' ' . self::TAG_TITLE, $filter->getTitle());
+        return $filter;
+    }
+
+    /**
+     * @test
+     * @depends getTitleForCategoryTagFilter
+     */
+    public function getDescriptionForCategoryTagFilter(CategoryTag $filter): void
+    {
+        self::assertSame(self::CATEGORY_DESCRIPTION . ' ' . self::TAG_DESCRIPTION, $filter->getDescription());
+    }
+
+    /**
+     * @test
+     * @depends getTitleForCategoryTagFilter
+     */
+    public function getConstraintsForCategoryTagFilter(CategoryTag $filter): void
+    {
+        $query = self::createMock(QueryInterface::class);
+        $query
+            ->expects($this->exactly(2))
+            ->method('contains')
+            ->willReturnCallback(fn(string $name, $categoryOrTag) => [$name => $categoryOrTag->getTitle()]);
+        $constraints = $filter->getConstraints($query);
+        self::assertArrayOfArrays(2, $constraints, [0, 1]);
+        self::assertArrayKeyValue(self::QUERY_CATEGORIES, self::CATEGORY_TITLE, $constraints[0]);
+        self::assertArrayKeyValue(self::QUERY_TAGS, self::TAG_TITLE, $constraints[1]);
+    }
+
+    protected function createCategory(): Category
+    {
+        $category = new Category();
+        $category->setTitle(self::CATEGORY_TITLE);
+        $category->setDescription(self::CATEGORY_DESCRIPTION);
+        return $category;
+    }
+
+    protected function createTag(): Tag
+    {
+        $tag = new Tag();
+        $tag->setTitle(self::TAG_TITLE);
+        $tag->setDescription(self::TAG_DESCRIPTION);
+        return $tag;
+    }
+}
diff --git a/ext_emconf.php b/ext_emconf.php
index 5317ec76..71d0f723 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -14,7 +14,7 @@
     'state' => 'stable',
     'author' => 'TYPO3 GmbH',
     'author_email' => 'info@typo3.com',
-    'version' => '12.0.2',
+    'version' => '12.1.0',
     'constraints' => [
         'depends' => [
             'typo3' => '11.5.0-12.4.99',
diff --git a/ext_localconf.php b/ext_localconf.php
index 19f38d17..7ac725fc 100644
--- a/ext_localconf.php
+++ b/ext_localconf.php
@@ -117,6 +117,14 @@
     ]
 );
 
+ExtensionUtility::configurePlugin(
+    'Blog',
+    'Filter',
+    [
+        PostController::class => 'listPostsByFilter',
+    ]
+);
+
 ExtensionUtility::configurePlugin(
     'Blog',
     'Sidebar',
diff --git a/ext_tables.php b/ext_tables.php
index 2fdc61d8..9b38127f 100644
--- a/ext_tables.php
+++ b/ext_tables.php
@@ -51,6 +51,7 @@
     'plugin-blog-relatedposts' => 'EXT:blog/Resources/Public/Icons/plugin-blog-relatedposts.svg',
     'plugin-blog-sidebar' => 'EXT:blog/Resources/Public/Icons/plugin-blog-sidebar.svg',
     'plugin-blog-tag' => 'EXT:blog/Resources/Public/Icons/plugin-blog-tag.svg',
+    'plugin-blog-filter' => 'EXT:blog/Resources/Public/Icons/plugin-blog-filter.svg',
     'record-blog-author' => 'EXT:blog/Resources/Public/Icons/record-blog-author.svg',
     'record-blog-comment' => 'EXT:blog/Resources/Public/Icons/record-blog-comment.svg',
     'record-blog-page' => 'EXT:blog/Resources/Public/Icons/record-blog-page.svg',