Storage Explorer

Browse, edit, and manage all your app's persisted data. See every key-value pair across all storage backends in real-time.

Storage Overview

Browse all keys with stats—valid, missing, and issues. Filter by backend: AsyncStorage, MMKV, or Secure Store.

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Supported Backends

Multi-instance MMKV support — If you use multiple MMKV instances, they're all detected automatically. Switch between instances and see key counts per instance.

Installation

That's it. The Storage Explorer auto-detects installed backends and appears in your FloatingDevTools menu.

SecureStore setup

Expo SecureStore (iOS Keychain / Android KeyStore) has no key-listing API, so register the keys you want visible — pass the module in, no extra dependency needed:

import * as SecureStore from "expo-secure-store";
import { registerSecureStoreKeys } from "@buoy-gg/storage";

registerSecureStoreKeys(SecureStore, [
  "auth.accessToken",
  { key: "session", keychainService: "com.myapp.auth" },
  // Biometric-protected keys are listed but never auto-read (no surprise Face ID prompts)
  { key: "pin", requireAuthentication: true },
]);

import * as SecureStore from "expo-secure-store";
import { registerSecureStoreKeys } from "@buoy-gg/storage";

registerSecureStoreKeys(SecureStore, [
  "auth.accessToken",
  { key: "session", keychainService: "com.myapp.auth" },
  // Biometric-protected keys are listed but never auto-read (no surprise Face ID prompts)
  { key: "pin", requireAuthentication: true },
]);

MMKV instances need the same one-time registration — see the package README for details.

What You Can Do

Smart Features

Inline value previews — Short values show right on the card (number · 42, string · "en"), and booleans get a color-coded true/false badge. No need to expand to see simple values.

Pin to top — Pin the keys you're watching so they stay at the top of the list. Pins persist across sessions.

Hide from list — One tap filters noisy keys out of the browser (from the expanded card or bulk selection). Non-destructive — unhide any time from the filters panel.

JSON formatting — Values that are valid JSON are automatically pretty-printed for readability.

Live events — Watch storage changes happen in real-time as your app reads and writes data.

Bulk selection — Select multiple keys to delete or export them all at once.

What's Next

• Network Monitor — See every API call your app makes
• Environment Inspector — Validate env vars with type checking
• React Query — Inspect query cache and simulate states