diff --git a/website/build.py b/website/build.py
index 9164ca1a..70bbdc14 100644
--- a/website/build.py
+++ b/website/build.py
@@ -678,12 +678,7 @@ def build(repo_root: Path) -> None:
     filter_urls: dict[str, str] = dict(category_urls)
     for group in parsed_groups:
         filter_urls[group["name"]] = group_path(group["slug"])
-    for entry in entries:
-        for sub in entry.get("subcategories", []):
-            filter_urls[sub["value"]] = sub["url"]
     builtin_entries = [e for e in entries if e.get("source_type") == BUILTIN_FILTER]
-    if builtin_entries:
-        filter_urls[BUILTIN_FILTER] = BUILTIN_PATH
 
     env = Environment(
         loader=FileSystemLoader(website / "templates"),
@@ -696,7 +691,6 @@ def build(repo_root: Path) -> None:
         shutil.rmtree(site_dir)
     site_dir.mkdir(parents=True)
 
-    filter_urls_json = json.dumps(filter_urls, sort_keys=True, ensure_ascii=False).replace("</", "<\\/")
     homepage_json_ld = json.dumps(
         build_homepage_json_ld(entries, len(categories)),
         ensure_ascii=False,
@@ -715,7 +709,6 @@ def build(repo_root: Path) -> None:
             sponsors=sponsors,
             category_urls=category_urls,
             filter_urls=filter_urls,
-            filter_urls_json=filter_urls_json,
             homepage_json_ld=homepage_json_ld,
         ),
         encoding="utf-8",
@@ -762,7 +755,6 @@ def build(repo_root: Path) -> None:
                 category_urls=category_urls,
                 current_path=current_path,
                 filter_urls=filter_urls,
-                filter_urls_json=filter_urls_json,
                 parent_category=parent_category,
                 group_categories=group_categories,
                 category_json_ld=category_json_ld,
diff --git a/website/static/main.js b/website/static/main.js
index 307e3f92..919aefd4 100644
--- a/website/static/main.js
+++ b/website/static/main.js
@@ -10,15 +10,10 @@ const defaultSort =
   table && table.dataset.defaultSort === "editorial"
     ? { col: "editorial", order: "asc" }
     : { col: "downloads", order: "desc" };
-let activeFilter = null;
 let activeSort = defaultSort;
 const searchInput = document.querySelector(".search");
-const filterBar = document.querySelector(".filter-bar");
-const filterValue = document.querySelector(".filter-value");
-const filterClear = document.querySelector(".filter-clear");
 const noResults = document.querySelector(".no-results");
 const rows = document.querySelectorAll(".table tbody tr.row");
-const tags = document.querySelectorAll(".tag");
 const tbody = document.querySelector(".table tbody");
 const groupRows = document.querySelectorAll(".table tbody tr.group-row");
 
@@ -145,7 +140,7 @@ function collapseAll() {
 
 function applyFilters() {
   const query = searchInput ? searchInput.value.toLowerCase().trim() : "";
-  const descRowsVisible = !isIndexDocument || activeFilter !== null;
+  const descRowsVisible = !isIndexDocument;
   let visibleCount = 0;
 
   collapseAll();
@@ -153,12 +148,7 @@ function applyFilters() {
   rows.forEach(function (row) {
     let show = true;
 
-    if (activeFilter) {
-      const rowTags = row.dataset.tags;
-      show = rowTags ? rowTags.split("||").includes(activeFilter) : false;
-    }
-
-    if (show && query) {
+    if (query) {
       if (!row._searchText) {
         let text = row.textContent.toLowerCase();
         if (row._descRow) {
@@ -200,35 +190,12 @@ function applyFilters() {
 
   if (noResults) noResults.hidden = visibleCount > 0;
 
-  tags.forEach(function (tag) {
-    tag.classList.toggle("active", activeFilter === tag.dataset.value);
-  });
-
-  if (filterBar) {
-    if (activeFilter) {
-      filterBar.classList.add("visible");
-      if (filterValue) filterValue.textContent = activeFilter;
-    } else {
-      filterBar.classList.remove("visible");
-    }
-  }
-
   updateURL();
 }
 
-const filterUrlsScript = document.getElementById("filter-urls");
-const filterToUrl = filterUrlsScript
-  ? JSON.parse(filterUrlsScript.textContent)
-  : {};
-
 const isIndexDocument =
   location.pathname === "/" || location.pathname === "/index.html";
 
-const urlToFilter = {};
-Object.keys(filterToUrl).forEach(function (k) {
-  urlToFilter[filterToUrl[k]] = k;
-});
-
 function buildQueryString() {
   const params = new URLSearchParams();
   const query = searchInput ? searchInput.value.trim() : "";
@@ -243,9 +210,7 @@ function buildQueryString() {
 
 function updateURL() {
   if (!isIndexDocument) return;
-  const path =
-    activeFilter && filterToUrl[activeFilter] ? filterToUrl[activeFilter] : "/";
-  history.replaceState(null, "", path + buildQueryString());
+  history.replaceState(null, "", "/" + buildQueryString());
 }
 
 function getSortValue(row, col) {
@@ -340,8 +305,8 @@ function updateSortIndicators() {
 // Expand/collapse: event delegation on tbody
 if (tbody) {
   tbody.addEventListener("click", function (e) {
-    // Don't toggle if clicking a link or tag button
-    if (e.target.closest("a") || e.target.closest(".tag")) return;
+    // Don't toggle if clicking a link
+    if (e.target.closest("a")) return;
 
     let row = e.target.closest("tr.row");
     if (!row) {
@@ -370,36 +335,6 @@ if (tbody) {
   });
 }
 
-tags.forEach(function (tag) {
-  tag.addEventListener("click", function (e) {
-    e.preventDefault();
-    const value = tag.dataset.value;
-    const url = tag.dataset.url;
-    if (isIndexDocument) {
-      activeFilter = activeFilter === value ? null : value;
-      if (activeFilter && url) {
-        history.pushState(null, "", url + buildQueryString());
-      } else {
-        history.pushState(null, "", "/" + buildQueryString());
-      }
-      applyFilters();
-    } else if (url) {
-      window.location.href = url + "#library-index";
-    }
-  });
-});
-
-if (filterClear) {
-  filterClear.addEventListener("click", function () {
-    if (!isIndexDocument) {
-      window.location.href = "/#library-index";
-      return;
-    }
-    activeFilter = null;
-    applyFilters();
-  });
-}
-
 const noResultsClear = document.querySelector(".no-results-clear");
 if (noResultsClear) {
   noResultsClear.addEventListener("click", function () {
@@ -408,7 +343,6 @@ if (noResultsClear) {
       return;
     }
     if (searchInput) searchInput.value = "";
-    activeFilter = null;
     applyFilters();
   });
 }
@@ -451,7 +385,6 @@ if (searchInput) {
     }
     if (e.key === "Escape" && document.activeElement === searchInput) {
       searchInput.value = "";
-      activeFilter = null;
       applyFilters();
       searchInput.blur();
     }
@@ -512,20 +445,8 @@ if (backToTop) {
   ) {
     activeSort = { col: sort, order: order };
   }
-  const matched = urlToFilter[location.pathname];
-  if (matched) activeFilter = matched;
-  if (q || activeFilter || sort) {
+  if (q || sort) {
     sortRows();
   }
-  if (activeFilter) {
-    applyFilters();
-  }
   updateSortIndicators();
 })();
-
-window.addEventListener("popstate", function () {
-  if (!isIndexDocument) return;
-  const matched = urlToFilter[location.pathname];
-  activeFilter = matched || null;
-  applyFilters();
-});
diff --git a/website/static/style.css b/website/static/style.css
index f7bddd67..4e067c06 100644
--- a/website/static/style.css
+++ b/website/static/style.css
@@ -265,8 +265,7 @@ kbd {
 
 .hero-topbar-link:active,
 .hero-action:active,
-.tag:active,
-.filter-clear:active {
+.tag:active {
   transform: translateY(1px);
 }
 
@@ -436,7 +435,6 @@ kbd {
 .hero-topbar-link:focus-visible,
 .hero-category-link:focus-visible,
 .search:focus-visible,
-.filter-clear:focus-visible,
 .tag:focus-visible,
 .jump-link:focus-visible,
 .back-to-top:focus-visible,
@@ -771,51 +769,6 @@ kbd {
     0 1.6rem 3rem -2rem var(--search-focus-shadow);
 }
 
-.filter-bar {
-  display: flex;
-  align-items: center;
-  gap: 0.75rem;
-  min-height: 2.3rem;
-  font-size: var(--text-sm);
-  color: var(--ink-soft);
-  opacity: 0;
-  transform: translateY(-0.4rem);
-  pointer-events: none;
-  transition:
-    opacity 180ms ease,
-    transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
-}
-
-.filter-bar.visible {
-  opacity: 1;
-  transform: translateY(0);
-  pointer-events: auto;
-}
-
-.filter-bar strong {
-  color: var(--ink);
-}
-
-.filter-clear {
-  border: 1px solid var(--line);
-  border-radius: 999px;
-  background: var(--bg-paper);
-  color: var(--ink-soft);
-  padding: 0.42rem 0.82rem;
-  cursor: pointer;
-  transition:
-    border-color 180ms ease,
-    color 180ms ease,
-    background-color 180ms ease,
-    transform 180ms ease;
-}
-
-.filter-clear:hover {
-  color: var(--ink);
-  background: var(--accent-soft);
-  border-color: oklch(68% 0.08 58 / 0.5);
-}
-
 .table-wrap {
   width: 100%;
   border-top: 1px solid var(--line);
diff --git a/website/templates/category.html b/website/templates/category.html
index a9618aef..7528da00 100644
--- a/website/templates/category.html
+++ b/website/templates/category.html
@@ -78,7 +78,6 @@
 {% macro entry_rows(entry, index) %}
         <tr
           class="row"
-          data-tags="{{ entry.categories | join('||') }}{% if entry.subcategories %}||{{ entry.subcategories | map(attribute='value') | join('||') }}{% endif %}||{{ entry.groups | join('||') }}{% if entry.source_type == 'Stdlib' %}||Stdlib{% endif %}"
           tabindex="0"
           aria-expanded="false"
           aria-controls="expand-{{ index }}"
@@ -124,7 +123,7 @@
           </td>
           <td class="col-cat">
             {% for subcat in entry.subcategories %}
-            <a class="tag{% if subcat.url == current_path %} active{% endif %}" href="{{ subcat.url }}" data-value="{{ subcat.value }}" data-url="{{ subcat.url }}">
+            <a class="tag{% if subcat.url == current_path %} active{% endif %}" href="{{ category_urls[subcat.value.split(' > ')[0]] }}#{{ subcat.slug }}">
               {{ subcat.name }}
             </a>
             {% endfor %}
@@ -132,8 +131,6 @@
             <a
               class="tag{% if category_urls[cat] == current_path %} active{% endif %}"
               href="{{ category_urls[cat] }}"
-              data-value="{{ cat }}"
-              data-url="{{ category_urls[cat] }}"
               >{{ cat }}</a
             >
             {% endfor %}
@@ -142,8 +139,6 @@
             <a
               class="tag tag-group{% if group_url == current_path %} active{% endif %}"
               href="{{ group_url }}"
-              data-value="{{ entry.groups[0] }}"
-              data-url="{{ group_url }}"
             >
               {{ entry.groups[0] }}
             </a>
@@ -152,8 +147,6 @@
             <a
               class="tag tag-source{% if '/categories/built-in/' == current_path %} active{% endif %}"
               href="/categories/built-in/"
-              data-value="Stdlib"
-              data-url="/categories/built-in/"
             >
               Stdlib
             </a>
@@ -211,7 +204,6 @@
           <td></td>
         </tr>
 {% endmacro %}
-<script type="application/json" id="filter-urls">{{ filter_urls_json | safe }}</script>
 <section class="results-section" id="library-index">
   <div class="results-intro section-shell" data-reveal>
     {% if entry_groups %}
@@ -255,12 +247,6 @@
         aria-label="Search projects"
       />
     </div>
-    <div class="filter-bar" aria-live="polite">
-      <span>Filtering for <strong class="filter-value"></strong></span>
-      <button class="filter-clear" aria-label="Clear filter">
-        Clear filter
-      </button>
-    </div>
   </div>
 
   <h2 class="sr-only">Results</h2>
diff --git a/website/templates/index.html b/website/templates/index.html
index b5540624..e4d95d10 100644
--- a/website/templates/index.html
+++ b/website/templates/index.html
@@ -96,7 +96,6 @@
 </section>
 {% endif %}
 
-<script type="application/json" id="filter-urls">{{ filter_urls_json | safe }}</script>
 <section class="results-section" id="library-index">
   <div class="results-intro section-shell" data-reveal>
     <div>
@@ -132,12 +131,6 @@
         aria-label="Search projects"
       />
     </div>
-    <div class="filter-bar" aria-live="polite">
-      <span>Filtering for <strong class="filter-value"></strong></span>
-      <button class="filter-clear" aria-label="Clear filter">
-        Clear filter
-      </button>
-    </div>
   </div>
 
   <h2 class="sr-only">Results</h2>
@@ -175,7 +168,6 @@
         {% for entry in entries %}
         <tr
           class="row"
-          data-tags="{{ entry.categories | join('||') }}{% if entry.subcategories %}||{{ entry.subcategories | map(attribute='value') | join('||') }}{% endif %}||{{ entry.groups | join('||') }}{% if entry.source_type == 'Stdlib' %}||Stdlib{% endif %}"
           tabindex="0"
           aria-expanded="false"
           aria-controls="expand-{{ loop.index }}"
@@ -221,23 +213,19 @@
           </td>
           <td class="col-cat">
             {% for subcat in entry.subcategories %}
-            <a class="tag" href="{{ subcat.url }}" data-value="{{ subcat.value }}" data-url="{{ subcat.url }}">
+            <a class="tag" href="{{ category_urls[subcat.value.split(' > ')[0]] }}#{{ subcat.slug }}">
               {{ subcat.name }}
             </a>
             {% endfor %} {% for cat in entry.categories %}
             <a
               class="tag"
               href="{{ category_urls[cat] }}"
-              data-value="{{ cat }}"
-              data-url="{{ category_urls[cat] }}"
               >{{ cat }}</a
             >
             {% endfor %}
             <a
               class="tag tag-group"
               href="{{ filter_urls[entry.groups[0]] }}"
-              data-value="{{ entry.groups[0] }}"
-              data-url="{{ filter_urls[entry.groups[0]] }}"
             >
               {{ entry.groups[0] }}
             </a>
@@ -245,8 +233,6 @@
             <a
               class="tag tag-source"
               href="/categories/built-in/"
-              data-value="Stdlib"
-              data-url="/categories/built-in/"
             >
               Stdlib
             </a>
diff --git a/website/tests/test_build.py b/website/tests/test_build.py
index cfebc616..f2448e90 100644
--- a/website/tests/test_build.py
+++ b/website/tests/test_build.py
@@ -280,7 +280,6 @@ class TestBuild:
         parser.feed(category_html)
 
         assert 'href="/categories/widgets/"' in index_html
-        assert 'data-value="Widgets"' in index_html
         assert parser.title.strip() == "Python Widgets Libraries - Awesome Python"
         assert parser.meta_by_name["description"] == "Widget libraries. Also see awesome-widgets. Explore 2 curated Python projects in Widgets."
         assert parser.links_by_rel["canonical"] == "https://awesome-python.com/categories/widgets/"
@@ -816,75 +815,6 @@ class TestBuild:
             {"@type": "ListItem", "position": 2, "name": "Sponsorship", "item": "https://awesome-python.com/sponsorship/"},
         ]
 
-    def test_index_embeds_filter_urls_json(self, tmp_path):
-        readme = textwrap.dedent("""\
-            # T
-
-            ## Projects
-
-            **AI & ML**
-
-            ## Deep Learning
-
-            - [dl1](https://example.com/dl1) - DL.
-
-            ## Machine Learning
-
-            - Classical
-
-                - [ml1](https://example.com/ml1) - ML.
-
-            # Contributing
-
-            Done.
-        """)
-        self._copy_real_templates(tmp_path)
-        (tmp_path / "README.md").write_text(readme, encoding="utf-8")
-        build(tmp_path)
-
-        site = tmp_path / "website" / "output"
-        index_html = (site / "index.html").read_text(encoding="utf-8")
-
-        marker = '<script type="application/json" id="filter-urls">'
-        assert marker in index_html
-        start = index_html.index(marker) + len(marker)
-        end = index_html.index("</script>", start)
-        data = json.loads(index_html[start:end])
-
-        assert data["Deep Learning"] == "/categories/deep-learning/"
-        assert data["Machine Learning"] == "/categories/machine-learning/"
-        assert data["AI & ML"] == "/categories/ai-ml/"
-        assert data["Machine Learning > Classical"] == "/categories/machine-learning/classical/"
-
-    def test_filter_urls_json_escapes_closing_script_tag(self, tmp_path):
-        readme = textwrap.dedent("""\
-            # T
-
-            ## Projects
-
-            ## Sneaky </script><script>x=1</script>
-
-            - [a](https://example.com) - A.
-
-            # Contributing
-
-            Done.
-        """)
-        self._copy_real_templates(tmp_path)
-        (tmp_path / "README.md").write_text(readme, encoding="utf-8")
-        build(tmp_path)
-
-        site = tmp_path / "website" / "output"
-        index_html = (site / "index.html").read_text(encoding="utf-8")
-
-        marker = '<script type="application/json" id="filter-urls">'
-        start = index_html.index(marker) + len(marker)
-        end = index_html.index("</script>", start)
-        block = index_html[start:end]
-        assert "</script>" not in block
-        data = json.loads(block)
-        assert any("Sneaky" in key for key in data)
-
     def test_build_creates_group_pages(self, tmp_path):
         readme = textwrap.dedent("""\
             # T
@@ -925,7 +855,7 @@ class TestBuild:
         assert "wf1" in web_dev
         assert "dl1" not in web_dev
 
-    def test_tag_buttons_have_data_url(self, tmp_path):
+    def test_tags_link_to_pages_and_subcategory_anchors(self, tmp_path):
         readme = textwrap.dedent("""\
             # T
 
@@ -950,11 +880,14 @@ class TestBuild:
         site = tmp_path / "website" / "output"
         index_html = (site / "index.html").read_text(encoding="utf-8")
 
-        assert 'data-value="Deep Learning"' in index_html
-        assert 'data-url="/categories/deep-learning/"' in index_html
-        assert 'data-value="AI &amp; ML"' in index_html or 'data-value="AI & ML"' in index_html
-        assert 'data-url="/categories/ai-ml/"' in index_html
-        assert 'data-url="/categories/deep-learning/vision/"' in index_html
+        category_html = (site / "categories" / "deep-learning" / "index.html").read_text(encoding="utf-8")
+
+        for html in (index_html, category_html):
+            assert 'href="/categories/deep-learning/#vision"' in html
+            assert 'href="/categories/ai-ml/"' in html
+            assert "data-url=" not in html
+        assert 'href="/categories/deep-learning/"' in index_html
+        assert 'id="vision"' in category_html
 
     _REDIRECT_README = textwrap.dedent("""\
         # Awesome Python