diff --git a/bincio/serve/server.py b/bincio/serve/server.py
index d9a8e7d..4dbb948 100644
--- a/bincio/serve/server.py
+++ b/bincio/serve/server.py
@@ -2828,6 +2828,34 @@ async def toggle_idea_status(
     return JSONResponse({"status": idea["status"]})
 
 
+@app.patch("/api/ideas/{idea_id}")
+async def edit_idea(
+    idea_id: str,
+    data: IdeaBody,
+    bincio_session: Optional[str] = Cookie(default=None),
+) -> JSONResponse:
+    user = _require_user(bincio_session)
+    dd = _get_data_dir()
+    path = _ideas_dir(dd) / f"{idea_id}.json"
+    if not path.exists():
+        raise HTTPException(404, "Not found")
+    title = data.title.strip()[:200]
+    body = data.body.strip()[:2000]
+    if not title:
+        raise HTTPException(400, "Title required")
+    with open(path, "r+", encoding="utf-8") as f:
+        _fcntl.flock(f, _fcntl.LOCK_EX)
+        idea = json.load(f)
+        if not user.is_admin and idea.get("author") != user.handle:
+            raise HTTPException(403, "Forbidden")
+        idea["title"] = title
+        idea["body"] = body
+        f.seek(0)
+        f.truncate()
+        json.dump(idea, f, ensure_ascii=False, indent=2)
+    return JSONResponse({"ok": True, "title": title, "body": body})
+
+
 @app.delete("/api/ideas/{idea_id}")
 async def delete_idea(
     idea_id: str,
diff --git a/site/src/components/IdeasPage.svelte b/site/src/components/IdeasPage.svelte
index b33583b..0a5ae2f 100644
--- a/site/src/components/IdeasPage.svelte
+++ b/site/src/components/IdeasPage.svelte
@@ -24,6 +24,42 @@
   let submitting = false;
   let formError = '';
 
+  let editingId: string | null = null;
+  let editTitle = '';
+  let editBody = '';
+  let editSaving = false;
+
+  function startEdit(idea: Idea) {
+    editingId = idea.id;
+    editTitle = idea.title;
+    editBody = idea.body;
+  }
+
+  function cancelEdit() {
+    editingId = null;
+  }
+
+  async function saveEdit(idea: Idea) {
+    if (!editTitle.trim()) return;
+    editSaving = true;
+    try {
+      const r = await fetch(`/api/ideas/${idea.id}`, {
+        method: 'PATCH',
+        credentials: 'include',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ title: editTitle.trim(), body: editBody.trim() }),
+      });
+      if (r.ok) {
+        idea.title = editTitle.trim();
+        idea.body = editBody.trim();
+        ideas = ideas;
+        editingId = null;
+      }
+    } finally {
+      editSaving = false;
+    }
+  }
+
   function relativeTime(ts: number): string {
     const diff = Math.floor(Date.now() / 1000) - ts;
     if (diff < 60)   return 'just now';
@@ -216,35 +252,68 @@
 
           <!-- Content -->
           <div class="flex-1 min-w-0">
-            <div class="flex items-start justify-between gap-2">
-              <p class="font-medium text-sm" style="color: var(--text-primary)">
-                {#if done}<span class="mr-1.5 text-green-500">✓</span>{/if}{idea.title}
-              </p>
-              <div class="flex items-center gap-1 shrink-0">
-                {#if isAdmin}
-                  <button
-                    on:click={() => toggleStatus(idea)}
-                    class="text-xs px-1.5 py-0.5 rounded transition-colors"
-                    style="color: {done ? 'var(--text-5)' : 'var(--accent)'}; border: 1px solid {done ? 'var(--border-sub)' : 'var(--accent)'}"
-                    title={done ? 'Mark as open' : 'Mark as done'}
-                  >{done ? 'reopen' : 'done'}</button>
-                {/if}
-                {#if isAdmin || idea.author === myHandle}
-                  <button
-                    on:click={() => deleteIdea(idea)}
-                    class="text-xs px-1.5 py-0.5 rounded transition-colors hover:text-red-400"
-                    style="color: var(--text-5)"
-                    title="Delete"
-                  >×</button>
-                {/if}
+            {#if editingId === idea.id}
+              <input
+                bind:value={editTitle}
+                class="w-full rounded-lg px-3 py-1.5 text-sm mb-2"
+                style="background: var(--bg-elevated); border: 1px solid var(--border-sub); color: var(--text-primary)"
+              />
+              <textarea
+                bind:value={editBody}
+                rows="2"
+                class="w-full rounded-lg px-3 py-1.5 text-sm mb-2 resize-none"
+                style="background: var(--bg-elevated); border: 1px solid var(--border-sub); color: var(--text-primary)"
+              ></textarea>
+              <div class="flex gap-2">
+                <button
+                  on:click={() => saveEdit(idea)}
+                  disabled={editSaving || !editTitle.trim()}
+                  class="px-3 py-1 rounded-lg text-xs font-medium text-white transition-opacity hover:opacity-90 disabled:opacity-50"
+                  style="background: var(--accent)"
+                >{editSaving ? 'Saving…' : 'Save'}</button>
+                <button
+                  on:click={cancelEdit}
+                  class="px-3 py-1 rounded-lg text-xs transition-colors"
+                  style="color: var(--text-5)"
+                >Cancel</button>
               </div>
-            </div>
-            {#if idea.body}
-              <p class="text-xs mt-1" style="color: var(--text-4)">{idea.body}</p>
+            {:else}
+              <div class="flex items-start justify-between gap-2">
+                <p class="font-medium text-sm" style="color: var(--text-primary)">
+                  {#if done}<span class="mr-1.5 text-green-500">✓</span>{/if}{idea.title}
+                </p>
+                <div class="flex items-center gap-1 shrink-0">
+                  {#if isAdmin}
+                    <button
+                      on:click={() => toggleStatus(idea)}
+                      class="text-xs px-1.5 py-0.5 rounded transition-colors"
+                      style="color: {done ? 'var(--text-5)' : 'var(--accent)'}; border: 1px solid {done ? 'var(--border-sub)' : 'var(--accent)'}"
+                      title={done ? 'Mark as open' : 'Mark as done'}
+                    >{done ? 'reopen' : 'done'}</button>
+                  {/if}
+                  {#if isAdmin || idea.author === myHandle}
+                    <button
+                      on:click={() => startEdit(idea)}
+                      class="text-xs px-1.5 py-0.5 rounded transition-colors hover:text-white"
+                      style="color: var(--text-5)"
+                      title="Edit"
+                    >✎</button>
+                    <button
+                      on:click={() => deleteIdea(idea)}
+                      class="text-xs px-1.5 py-0.5 rounded transition-colors hover:text-red-400"
+                      style="color: var(--text-5)"
+                      title="Delete"
+                    >×</button>
+                  {/if}
+                </div>
+              </div>
+              {#if idea.body}
+                <p class="text-xs mt-1" style="color: var(--text-4)">{idea.body}</p>
+              {/if}
+              <p class="text-xs mt-1.5" style="color: var(--text-5)">
+                @{idea.author} · {relativeTime(idea.created_at)}
+              </p>
             {/if}
-            <p class="text-xs mt-1.5" style="color: var(--text-5)">
-              @{idea.author} · {relativeTime(idea.created_at)}
-            </p>
           </div>
         </li>
       {/each}