diff --git a/modules/svg/svg.go b/modules/svg/svg.go
index 234b1f8c1303a..917df9439a2d5 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 8283d3ad9dfe8..c9964eac455ca 100644
--- a/routers/web/devtest/devtest.go
+++ b/routers/web/devtest/devtest.go
@@ -18,6 +18,7 @@ import (
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/badge"
 	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/svg"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/services/context"
@@ -180,6 +181,21 @@ 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":
@@ -190,6 +206,8 @@ func prepareMockData(ctx *context.Context) {
 		prepareMockDataBadgeActionsSvg(ctx)
 	case "/devtest/relative-time":
 		prepareMockDataRelativeTime(ctx)
+	case "/devtest/icon-gallery":
+		prepareMockDataIconGallery(ctx)
 	}
 }
 
diff --git a/templates/devtest/icon-gallery.tmpl b/templates/devtest/icon-gallery.tmpl
new file mode 100644
index 0000000000000..fd24bf7b34b1e
--- /dev/null
+++ b/templates/devtest/icon-gallery.tmpl
@@ -0,0 +1,45 @@
+{{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" style="width: 300px">
+		<label class="gt-checkbox tw-ml-4"><input id="icon-size-toggle" type="checkbox"> Large (24px)</label>
+	</p>
+
+	<script>
+		document.addEventListener('DOMContentLoaded', () => {
+			const search = document.getElementById('icon-search');
+			const sizeToggle = document.getElementById('icon-size-toggle');
+			search.addEventListener('input', () => {
+				const q = search.value.toLowerCase();
+				for (const card of document.querySelectorAll('.icon-card')) {
+					card.style.display = card.getAttribute('data-name').includes(q) ? '' : 'none';
+				}
+			});
+			sizeToggle.addEventListener('change', () => {
+				const size = sizeToggle.checked ? '24' : '16';
+				for (const icon of document.querySelectorAll('.icon-card svg')) {
+					icon.setAttribute('width', size);
+					icon.setAttribute('height', size);
+				}
+			});
+		});
+	</script>
+
+	{{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 := $icons}}
+		<div class="icon-card tw-flex tw-flex-col tw-items-center tw-gap-1 tw-p-2 tw-border tw-border-secondary tw-rounded" style="width: 120px" data-name="{{$name}}" title="{{$name}}">
+			<div class="tw-flex tw-items-center tw-justify-center" style="height: 32px">{{svg $name 16}}</div>
+			<code class="gt-ellipsis" style="max-width: 108px; font-size: 10px">{{$name}}</code>
+		</div>
+		{{end}}
+	</div>
+	{{end}}
+	{{end}}
+</div>
+{{template "devtest/devtest-footer"}}