diff --git a/src/routers/sources.py b/src/routers/sources.py
index 20d3f9b..8c70966 100644
--- a/src/routers/sources.py
+++ b/src/routers/sources.py
@@ -11,6 +11,7 @@ import aiosqlite
 from auth import get_current_admin
 from database import db_dependency
 from audit import log_action, get_client_ip, row_to_dict
+from source_meta import get_meta
 from config import HEALTH_CHECK_USER_AGENT, HEALTH_CHECK_TIMEOUT_S
 from shared.source_rules import (
     discover_source,
@@ -28,6 +29,17 @@ router = APIRouter(prefix="/api/sources", tags=["sources"])
 SOURCE_UPDATE_COLUMNS = {"name", "url", "domain", "source_type", "category", "status", "notes"}
 
 
+@router.get("/meta")
+async def get_sources_meta(admin: dict = Depends(get_current_admin)):
+    """Liefert Kategorien und Typen als Single Source of Truth.
+
+    Frontend lädt das beim Init und befüllt damit Filter-Dropdowns + Label-Lookups.
+    Damit gibt es keine hardcoded Listen mehr im JS/HTML.
+    """
+    return get_meta()
+
+
+
 class GlobalSourceCreate(BaseModel):
     name: str = Field(min_length=1, max_length=200)
     url: Optional[str] = None
diff --git a/src/source_meta.py b/src/source_meta.py
new file mode 100644
index 0000000..d351f6c
--- /dev/null
+++ b/src/source_meta.py
@@ -0,0 +1,73 @@
+"""Single Source of Truth für Quellen-Kategorien und -Typen.
+
+Wird vom Backend über GET /api/sources/meta exportiert.
+Frontend (sources.js, source-health.js, dashboard.html) lädt diese
+beim Init und befüllt damit Filter-Dropdowns und Label-Lookups.
+"""
+from typing import TypedDict
+
+
+class CategoryEntry(TypedDict):
+    key: str
+    label: str
+
+
+class TypeEntry(TypedDict):
+    key: str
+    label: str
+
+
+SOURCE_CATEGORIES: list[CategoryEntry] = [
+    {"key": "nachrichtenagentur",          "label": "Nachrichtenagentur"},
+    {"key": "oeffentlich-rechtlich",       "label": "Öffentlich-Rechtlich"},
+    {"key": "qualitaetszeitung",           "label": "Qualitätszeitung"},
+    {"key": "behoerde",                    "label": "Behörde"},
+    {"key": "fachmedien",                  "label": "Fachmedien"},
+    {"key": "think-tank",                  "label": "Think-Tank"},
+    {"key": "international",               "label": "International"},
+    {"key": "regional",                    "label": "Regional"},
+    {"key": "boulevard",                   "label": "Boulevard"},
+    {"key": "sonstige",                    "label": "Sonstige"},
+    {"key": "cybercrime",                  "label": "Cybercrime / Hacktivismus"},
+    {"key": "cybercrime-leaks",            "label": "Cybercrime / Leaks"},
+    {"key": "ukraine-russland-krieg",      "label": "Ukraine-Russland-Krieg"},
+    {"key": "irankonflikt",                "label": "Irankonflikt"},
+    {"key": "osint-international",         "label": "OSINT International"},
+    {"key": "extremismus-deutschland",     "label": "Extremismus Deutschland"},
+    {"key": "russische-staatspropaganda",  "label": "Russische Staatspropaganda"},
+    {"key": "russische-opposition",        "label": "Russische Opposition / Exilmedien"},
+    {"key": "syrien-nahost",               "label": "Syrien / Nahost"},
+]
+
+
+SOURCE_TYPES: list[TypeEntry] = [
+    {"key": "rss_feed",         "label": "RSS-Feed"},
+    {"key": "web_source",       "label": "Webquelle"},
+    {"key": "telegram_channel", "label": "Telegram-Kanal"},
+    {"key": "podcast_feed",     "label": "Podcast-Feed"},
+    {"key": "excluded",         "label": "Ausgeschlossen"},
+]
+
+
+def get_meta() -> dict:
+    """Vollständige Meta-Information für Frontend-Konsumenten."""
+    return {
+        "categories": SOURCE_CATEGORIES,
+        "types": SOURCE_TYPES,
+    }
+
+
+def category_label(key: str) -> str:
+    """Lookup: Kategorie-Key -> Label. Fallback: Key selbst."""
+    for c in SOURCE_CATEGORIES:
+        if c["key"] == key:
+            return c["label"]
+    return key
+
+
+def type_label(key: str) -> str:
+    """Lookup: Typ-Key -> Label. Fallback: Key selbst."""
+    for t in SOURCE_TYPES:
+        if t["key"] == key:
+            return t["label"]
+    return key
diff --git a/src/static/dashboard.html b/src/static/dashboard.html
index c0ab006..705858a 100644
--- a/src/static/dashboard.html
+++ b/src/static/dashboard.html
@@ -303,32 +303,9 @@
             <input type="text" class="search-input" id="globalSourceSearch" placeholder="Grundquelle suchen...">
             <select class="filter-select" id="globalFilterType" onchange="filterGlobalSources()">
               <option value="">Alle Typen</option>
-              <option value="rss_feed">RSS-Feed</option>
-              <option value="web_source">Webquelle</option>
-              <option value="telegram_channel">Telegram-Kanal</option>
-              <option value="podcast_feed">Podcast-Feed</option>
             </select>
             <select class="filter-select" id="globalFilterCategory" onchange="filterGlobalSources()">
               <option value="">Alle Kategorien</option>
-              <option value="nachrichtenagentur">Nachrichtenagentur</option>
-              <option value="oeffentlich-rechtlich">Öffentlich-Rechtlich</option>
-              <option value="qualitaetszeitung">Qualitätszeitung</option>
-              <option value="behoerde">Behörde</option>
-              <option value="fachmedien">Fachmedien</option>
-              <option value="think-tank">Think-Tank</option>
-              <option value="international">International</option>
-              <option value="regional">Regional</option>
-              <option value="boulevard">Boulevard</option>
-              <option value="sonstige">Sonstige</option>
-              <option value="cybercrime">Cybercrime / Hacktivismus</option>
-              <option value="cybercrime-leaks">Cybercrime / Leaks</option>
-              <option value="ukraine-russland-krieg">Ukraine-Russland-Krieg</option>
-              <option value="irankonflikt">Irankonflikt</option>
-              <option value="osint-international">OSINT International</option>
-              <option value="extremismus-deutschland">Extremismus Deutschland</option>
-              <option value="russische-staatspropaganda">Russische Staatspropaganda</option>
-              <option value="russische-opposition">Russische Opposition / Exilmedien</option>
-              <option value="syrien-nahost">Syrien / Nahost</option>
             </select>
             <select class="filter-select" id="globalFilterStatus" onchange="filterGlobalSources()">
               <option value="">Alle Status</option>
diff --git a/src/static/js/app.js b/src/static/js/app.js
index 1fd9a63..95dac4b 100644
--- a/src/static/js/app.js
+++ b/src/static/js/app.js
@@ -833,3 +833,48 @@ document.addEventListener('DOMContentLoaded', function() {
     });
   }
 });
+
+// === Source-Meta (Kategorien + Typen aus dem Backend) ===
+window.META = { categories: [], types: [] };
+window.CATEGORY_LABELS = {};
+window.TYPE_LABELS = {};
+
+async function loadMeta() {
+  try {
+    const data = await API.get("/api/sources/meta");
+    window.META = data;
+    window.CATEGORY_LABELS = Object.fromEntries((data.categories || []).map(c => [c.key, c.label]));
+    window.TYPE_LABELS = Object.fromEntries((data.types || []).map(t => [t.key, t.label]));
+    return data;
+  } catch (err) {
+    console.warn("loadMeta:", err);
+    return null;
+  }
+}
+
+function categoryLabel(key) {
+  return window.CATEGORY_LABELS[key] || key || "";
+}
+function typeLabel(key) {
+  return window.TYPE_LABELS[key] || key || "";
+}
+
+function populateSelect(el, items, allLabel) {
+  if (!el) return;
+  const current = el.value;
+  el.innerHTML = '<option value="">' + (allLabel || "Alle") + '</option>';
+  items.forEach(it => {
+    const opt = document.createElement("option");
+    opt.value = it.key;
+    opt.textContent = it.label;
+    el.appendChild(opt);
+  });
+  if (current && items.some(it => it.key === current)) el.value = current;
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  // Beim Page-Load Meta einmalig laden (asynchron, blockiert nicht)
+  if (window.API && (localStorage.getItem("token") || window.location.pathname === "/dashboard")) {
+    loadMeta();
+  }
+});
diff --git a/src/static/js/sources.js b/src/static/js/sources.js
index dc9d466..0407727 100644
--- a/src/static/js/sources.js
+++ b/src/static/js/sources.js
@@ -7,36 +7,8 @@ let editingSourceId = null;
 let globalSortField = "category";
 let globalSortAsc = true;
 
-const CATEGORY_LABELS = {
-  nachrichtenagentur: "Nachrichtenagentur",
-  "oeffentlich-rechtlich": "Öffentlich-Rechtlich",
-  qualitaetszeitung: "Qualitätszeitung",
-  behoerde: "Behörde",
-  fachmedien: "Fachmedien",
-  "think-tank": "Think-Tank",
-  international: "International",
-  regional: "Regional",
-  boulevard: "Boulevard",
-  sonstige: "Sonstige",
-  "cybercrime": "Cybercrime / Hacktivismus",
-  "cybercrime-leaks": "Cybercrime / Leaks",
-  "ukraine-russland-krieg": "Ukraine-Russland-Krieg",
-  "irankonflikt": "Irankonflikt",
-  "osint-international": "OSINT International",
-  "extremismus-deutschland": "Extremismus Deutschland",
-  "russische-staatspropaganda": "Russische Staatspropaganda",
-  "russische-opposition": "Russische Opposition / Exilmedien",
-  "syrien-nahost": "Syrien / Nahost",
-};
-
-const TYPE_LABELS = {
-  rss_feed: "RSS-Feed",
-  web_source: "Webquelle",
-  telegram_channel: "Telegram-Kanal",
-  podcast_feed: "Podcast-Feed",
-  excluded: "Ausgeschlossen",
-};
-
+// CATEGORY_LABELS jetzt global (aus app.js loadMeta)
+// TYPE_LABELS jetzt global (aus app.js loadMeta)
 // --- Init ---
 document.addEventListener("DOMContentLoaded", () => {
   setupSourceSubTabs();
@@ -67,6 +39,12 @@ function setupSourceSubTabs() {
 // --- Grundquellen ---
 async function loadGlobalSources() {
   try {
+    // Kategorien/Typen-Dropdowns aus META befüllen (idempotent)
+    if (window.META && window.META.categories && window.META.categories.length) {
+      populateSelect(document.getElementById("globalFilterCategory"), window.META.categories, "Alle Kategorien");
+      populateSelect(document.getElementById("globalFilterType"),
+        (window.META.types || []).filter(t => t.key !== "excluded"), "Alle Typen");
+    }
     globalSourcesCache = await API.get("/api/sources/global");
     renderGlobalSources(globalSourcesCache);
   } catch (err) {