diff --git a/src/IndexedDB.ts b/src/IndexedDB.ts
index 50d7531..08aa7bc 100644
--- a/src/IndexedDB.ts
+++ b/src/IndexedDB.ts
@@ -26,6 +26,10 @@ export class IndexedDBTransaction extends AsyncTransaction<IndexedDBStore> {
 		this._idb = tx.objectStore(store.name);
 	}
 
+	public async keys(): Promise<Iterable<Ino>> {
+		return (await wrap(this._idb.getAllKeys())).filter(k => typeof k == 'string').map(k => BigInt(k));
+	}
+
 	public get(key: Ino): Promise<Uint8Array> {
 		return wrap(this._idb.get(key.toString()));
 	}
diff --git a/src/Storage.ts b/src/Storage.ts
index 5adbe7d..b5815d7 100644
--- a/src/Storage.ts
+++ b/src/Storage.ts
@@ -26,6 +26,10 @@ export class WebStorageStore implements Store, SimpleSyncStore {
 		return new SimpleTransaction(this);
 	}
 
+	public keys(): Iterable<Ino> {
+		return Object.keys(this.storage).map(k => BigInt(k));
+	}
+
 	public get(key: Ino): Uint8Array | undefined {
 		const data = this.storage.getItem(key.toString());
 		if (typeof data != 'string') {