diff --git a/modules/svg/svg.go b/modules/svg/svg.go
index 234b1f8c13..917df9439a 100644
--- a/modules/svg/svg.go
+++ b/modules/svg/svg.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"html/template"
 	"path"
+	"sort"
 	"strings"
 	"sync"
 
@@ -78,6 +79,16 @@ func MockIcon(icon string) func() {
 	}
 }
 
+// DiscoveredIconNames returns the sorted list of all discovered SVG icon names
+func DiscoveredIconNames() []string {
+	names := make([]string, 0, len(svgIcons))
+	for name := range svgIcons {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+	return names
+}
+
 // RenderHTML renders icons - arguments icon name (string), size (int), class (string)
 func RenderHTML(icon string, others ...any) template.HTML {
 	result, _ := renderHTML(icon, others...)
diff --git a/routers/web/devtest/devtest.go b/routers/web/devtest/devtest.go
index af54843016..116d54415d 100644
--- a/routers/web/devtest/devtest.go
+++ b/routers/web/devtest/devtest.go
@@ -19,6 +19,7 @@ import (
 	"code.gitea.io/gitea/modules/badge"
 	"code.gitea.io/gitea/modules/charset"
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/svg"
 	"code.gitea.io/gitea/modules/indexer/code"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/util"
@@ -182,6 +183,21 @@ func prepareMockDataRelativeTime(ctx *context.Context) {
 	ctx.Data["TimeFuture1y"] = now.Add(366 * 24 * time.Hour)
 }
 
+func prepareMockDataIconGallery(ctx *context.Context) {
+	allNames := svg.DiscoveredIconNames()
+	grouped := map[string][]string{}
+	for _, name := range allNames {
+		prefix := "other"
+		if before, _, ok := strings.Cut(name, "-"); ok {
+			prefix = before
+		}
+		grouped[prefix] = append(grouped[prefix], name)
+	}
+	ctx.Data["IconGroups"] = grouped
+	ctx.Data["IconGroupOrder"] = []string{"octicon", "gitea", "fontawesome", "material", "other"}
+	ctx.Data["IconCount"] = len(allNames)
+}
+
 func prepareMockData(ctx *context.Context) {
 	switch ctx.Req.URL.Path {
 	case "/devtest/gitea-ui":
@@ -192,6 +208,8 @@ func prepareMockData(ctx *context.Context) {
 		prepareMockDataBadgeActionsSvg(ctx)
 	case "/devtest/relative-time":
 		prepareMockDataRelativeTime(ctx)
+	case "/devtest/icon-gallery":
+		prepareMockDataIconGallery(ctx)
 	case "/devtest/toast-and-message":
 		prepareMockDataToastAndMessage(ctx)
 	case "/devtest/unicode-escape":
diff --git a/templates/devtest/icon-gallery.tmpl b/templates/devtest/icon-gallery.tmpl
new file mode 100644
index 0000000000..77607f9370
--- /dev/null
+++ b/templates/devtest/icon-gallery.tmpl
@@ -0,0 +1,25 @@
+{{template "devtest/devtest-header"}}
+<div class="page-content devtest ui container">
+	<h1>Icon Gallery</h1>
+	<p>All <strong>{{.IconCount}}</strong> SVG icons available in templates.</p>
+	<p>
+		<input id="icon-search" type="text" placeholder="Filter icons..." class="ui input icon-gallery-search">
+		<label class="gt-checkbox tw-ml-4"><input id="icon-size-toggle" type="checkbox"> Large (24px)</label>
+	</p>
+
+	{{range $prefix := .IconGroupOrder}}
+	{{$icons := index $.IconGroups $prefix}}
+	{{if $icons}}
+	<h2 id="group-{{$prefix}}">{{$prefix}} <span class="ui grey label">{{len $icons}}</span></h2>
+	<div class="tw-flex tw-flex-wrap tw-gap-2 tw-mb-4">
+		{{range $name := $icons}}
+		<div class="icon-card icon-gallery-card tw-flex tw-flex-col tw-items-center tw-gap-1 tw-p-2 tw-border tw-border-secondary tw-rounded" data-name="{{$name}}" title="{{$name}}">
+			<div class="icon-gallery-preview tw-flex tw-items-center tw-justify-center">{{svg $name 16}}</div>
+			<code class="gt-ellipsis icon-gallery-name">{{$name}}</code>
+		</div>
+		{{end}}
+	</div>
+	{{end}}
+	{{end}}
+</div>
+{{template "devtest/devtest-footer"}}
diff --git a/web_src/css/devtest.css b/web_src/css/devtest.css
index c344d99058..18424681f9 100644
--- a/web_src/css/devtest.css
+++ b/web_src/css/devtest.css
@@ -18,3 +18,20 @@ h1, h2 {
 .fetch-action-demo-forms .form-fetch-action {
   border: 1px red dashed; /* show the border for demo purpose */
 }
+
+.icon-gallery-search {
+  width: 300px;
+}
+
+.icon-gallery-card {
+  width: 120px;
+}
+
+.icon-gallery-preview {
+  height: 32px;
+}
+
+.icon-gallery-name {
+  max-width: 108px;
+  font-size: 10px;
+}
diff --git a/web_src/js/modules/devtest.ts b/web_src/js/modules/devtest.ts
index 634d16293e..f9f1ff0e07 100644
--- a/web_src/js/modules/devtest.ts
+++ b/web_src/js/modules/devtest.ts
@@ -9,6 +9,25 @@ import {showGlobalErrorMessage} from './errors.ts';
 type LevelMap = Record<string, (message: string) => Toast | null>;
 
 function initDevtestPage() {
+  const iconSearch = document.querySelector<HTMLInputElement>('#icon-search');
+  const iconSizeToggle = document.querySelector<HTMLInputElement>('#icon-size-toggle');
+  if (iconSearch && iconSizeToggle) {
+    iconSearch.addEventListener('input', () => {
+      const query = iconSearch.value.toLowerCase();
+      for (const card of document.querySelectorAll<HTMLElement>('.icon-card')) {
+        card.style.display = card.getAttribute('data-name')!.includes(query) ? '' : 'none';
+      }
+    });
+
+    iconSizeToggle.addEventListener('change', () => {
+      const size = iconSizeToggle.checked ? '24' : '16';
+      for (const icon of document.querySelectorAll<SVGElement>('.icon-card svg')) {
+        icon.setAttribute('width', size);
+        icon.setAttribute('height', size);
+      }
+    });
+  }
+
   const toastButtons = document.querySelectorAll('.toast-test-button');
   if (toastButtons.length) {
     const levelMap: LevelMap = {info: showInfoToast, warning: showWarningToast, error: showErrorToast};