diff --git a/app.py b/app.py
index e359730..c0ff822 100644
--- a/app.py
+++ b/app.py
@@ -10,7 +10,7 @@ from typing import Optional
 import markdown as md
 import requests
 from fastapi import FastAPI, File, Form, HTTPException, UploadFile
-from fastapi.responses import HTMLResponse, PlainTextResponse, Response
+from fastapi.responses import HTMLResponse, PlainTextResponse, Response, JSONResponse
 
 API_BASE = os.getenv("API_BASE", "http://gx10.aquantico.lan:8093").rstrip("/")
 OLLAMA_BASE_URL = os.getenv("OLLAMA_BASE_URL", "http://gx10.aquantico.lan:11434").rstrip("/")
@@ -224,6 +224,11 @@ def get_prompts():
         return c.execute("SELECT id,name,prompt FROM prompts ORDER BY name").fetchall()
 
 
+def _job_get(job_id: int):
+    with db() as c:
+        return c.execute("SELECT * FROM jobs WHERE id=?", (job_id,)).fetchone()
+
+
 def _job_set(job_id: int, **fields):
     if not fields:
         return
@@ -234,13 +239,17 @@ def _job_set(job_id: int, **fields):
 
 
 def _process_upload_job(job_id: int):
-    with db() as c:
-        j = c.execute("SELECT * FROM jobs WHERE id=?", (job_id,)).fetchone()
+    j = _job_get(job_id)
     if not j:
         return
+    if j["status"] == "cancelled":
+        return
 
     _job_set(job_id, status="running", started_at=now_iso())
     try:
+        j = _job_get(job_id)
+        if not j or j["status"] == "cancelled":
+            return
         p = Path(j["file_path"])
         data = p.read_bytes()
         filename = p.name
@@ -249,6 +258,10 @@ def _process_upload_job(job_id: int):
         r.raise_for_status()
         payload = r.json()
 
+        j = _job_get(job_id)
+        if not j or j["status"] == "cancelled":
+            return
+
         content_md = payload.get("formatted_text", "")
         doc_title = (j["title"] or "").strip() or filename
         with db() as c:
@@ -264,13 +277,17 @@ def _process_upload_job(job_id: int):
 
 
 def _process_analysis_job(job_id: int):
-    with db() as c:
-        j = c.execute("SELECT * FROM jobs WHERE id=?", (job_id,)).fetchone()
+    j = _job_get(job_id)
     if not j:
         return
+    if j["status"] == "cancelled":
+        return
 
     _job_set(job_id, status="running", started_at=now_iso())
     try:
+        j = _job_get(job_id)
+        if not j or j["status"] == "cancelled":
+            return
         with db() as c:
             doc = c.execute("SELECT * FROM documents WHERE id=?", (j["document_id"],)).fetchone()
             prm = c.execute("SELECT * FROM prompts WHERE id=?", (j["prompt_id"],)).fetchone()
@@ -291,6 +308,10 @@ def _process_analysis_job(job_id: int):
         r.raise_for_status()
         answer = r.json().get("response", "")
 
+        j = _job_get(job_id)
+        if not j or j["status"] == "cancelled":
+            return
+
         with db() as c:
             cur = c.execute(
                 """
@@ -707,8 +728,7 @@ def prompt_delete(prompt_id: int):
     return HTMLResponse("<meta http-equiv='refresh' content='0; url=/prompts'>")
 
 
-@app.get("/jobs", response_class=HTMLResponse)
-def jobs_page(queued: Optional[int] = None):
+def _jobs_payload(limit: int = 200):
     with db() as c:
         jobs = c.execute(
             """
@@ -717,27 +737,81 @@ def jobs_page(queued: Optional[int] = None):
             LEFT JOIN projects p ON p.id=j.project_id
             LEFT JOIN documents d ON d.id=j.document_id
             LEFT JOIN prompts pr ON pr.id=j.prompt_id
-            ORDER BY j.id DESC LIMIT 200
-            """
+            ORDER BY j.id DESC LIMIT ?
+            """,
+            (limit,),
         ).fetchall()
+    return [dict(j) for j in jobs]
 
-    rows = "".join([
-        f"<div class='card'><b>Job #{j['id']}</b> [{j['kind']}] · <b>{j['status']}</b><br>"
-        f"<small>{j['created_at']}</small><br>"
-        f"{('Projekt: '+str(j['project_name'])+'<br>') if j['project_name'] else ''}"
-        f"{('Dokument: '+str(j['document_title'])+'<br>') if j['document_title'] else ''}"
-        f"{('Prompt: '+str(j['prompt_name'])+'<br>') if j['prompt_name'] else ''}"
-        f"{('Fehler: <pre>'+str(j['error']).replace('<','&lt;')+'</pre>') if j['error'] else ''}"
-        f"{(f'<a href=\'/document/{j['result_document_id']}\'>Ergebnis öffnen</a>') if j['result_document_id'] else ''}"
-        f"</div>" for j in jobs
-    ])
 
+@app.get("/jobs/data")
+def jobs_data(limit: int = 200):
+    return {"items": _jobs_payload(limit)}
+
+
+@app.post("/jobs/{job_id}/cancel")
+def jobs_cancel(job_id: int):
+    j = _job_get(job_id)
+    if not j:
+        raise HTTPException(404, "job not found")
+    if j["status"] in ("done", "error", "cancelled"):
+        return {"ok": True, "status": j["status"]}
+    _job_set(job_id, status="cancelled", finished_at=now_iso(), error="Cancelled by user")
+    return {"ok": True, "status": "cancelled"}
+
+
+@app.post("/jobs/{job_id}/delete")
+def jobs_delete(job_id: int):
+    with db() as c:
+        c.execute("DELETE FROM jobs WHERE id=?", (job_id,))
+    return {"ok": True}
+
+
+@app.get("/jobs", response_class=HTMLResponse)
+def jobs_page(queued: Optional[int] = None):
     notice = f"<p><b>Job #{queued} wurde eingereiht.</b></p>" if queued else ""
     body = f"""
 <h2>Hintergrundverarbeitung</h2>
-<p class='hint'>Maximal 2 Jobs laufen gleichzeitig.</p>
+<p class='hint'>Maximal 2 Jobs gleichzeitig. Seite aktualisiert automatisch.</p>
 {notice}
-{rows or '<p>Keine Jobs.</p>'}
+<div id='jobs-root'></div>
+<script>
+function since(ts) {{
+  if(!ts) return '-';
+  const s = Math.floor((Date.now()-Date.parse(ts))/1000);
+  if (s<60) return s+'s';
+  const m = Math.floor(s/60); if (m<60) return m+'m '+(s%60)+'s';
+  const h = Math.floor(m/60); return h+'h '+(m%60)+'m';
+}}
+async function post(url) {{
+  const r = await fetch(url, {{method:'POST'}});
+  if(!r.ok) alert('Fehler '+r.status);
+}}
+async function renderJobs() {{
+  const r = await fetch('/jobs/data');
+  const j = await r.json();
+  const root = document.getElementById('jobs-root');
+  root.innerHTML = '';
+  if(!j.items.length) {{ root.innerHTML = '<p>Keine Jobs.</p>'; return; }}
+  for(const it of j.items) {{
+    const d = document.createElement('div'); d.className='card';
+    const actions = [];
+    if(!['done','error','cancelled'].includes(it.status)) actions.push("<a href='#' class='iconbtn' onclick=\"cancelJob("+it.id+");return false;\">⛔</a>");
+    actions.push("<a href='#' class='iconbtn' onclick=\"deleteJob("+it.id+");return false;\">🗑️</a>");
+    const result = it.result_document_id ? ("<a href='/document/"+it.result_document_id+"'>Ergebnis öffnen</a>") : '';
+    const err = it.error ? ("<pre>"+String(it.error).replaceAll('<','&lt;')+"</pre>") : '';
+    d.innerHTML = "<b>Job #"+it.id+"</b> ["+it.kind+"] · <b>"+it.status+"</b> · läuft: "+since(it.started_at || it.created_at)+"<br><small>"+it.created_at+"</small><br>"
+      +(it.project_name?('Projekt: '+it.project_name+'<br>'):'')
+      +(it.document_title?('Dokument: '+it.document_title+'<br>'):'')
+      +(it.prompt_name?('Prompt: '+it.prompt_name+'<br>'):'')
+      +"<div class='row' style='margin-top:8px'>"+actions.join(' ')+" "+result+"</div>"+err;
+    root.appendChild(d);
+  }}
+}}
+async function cancelJob(id) {{ if(!confirm('Job abbrechen?')) return; await post('/jobs/'+id+'/cancel'); renderJobs(); }}
+async function deleteJob(id) {{ if(!confirm('Job löschen?')) return; await post('/jobs/'+id+'/delete'); renderJobs(); }}
+renderJobs(); setInterval(renderJobs, 5000);
+</script>
 """
     return layout("Jobs", body)