Xstr
Auto-mirror your X (Twitter) posts to Nostr — free, automatic cross-posting, your key encrypted.
How Xstr works
Mirror your X posts to Nostr automatically, compose to both at once, and cross-post Nostr → X. Four steps:
- Connect your X accountSecurely link X so the app can read your posts — and post back to X if you want.
- Add your Nostr signerUse a browser extension, a remote signer (Nostr Connect), or paste a key. Your key is encrypted and stays in your control.
- Pick your relaysChoose where your Nostr notes get published.
- You're syncedNew X posts auto-mirror to Nostr in the background, with loop protection so nothing bounces back and forth. Compose once to post to both, and see reactions, reposts and zaps on each note.
Your latest post
How your most recent post is doing.
Earlier posts
Engagement on your previous posts published to Nostr.
Approve & publish
No-custody mode is on — your key stays in your extension. Review new X posts and sign each one to publish it to Nostr.
Show your Nostr posts on X
Cross-post your original Nostr notes to X. Posts you mirrored from X are skipped, so nothing loops back. Needs X reconnected with write access.
Never
Never
None
Sync Control
Run a test first, then enable background sync.
Never
Never
None
None
Queue
Posts wait here before publishing. Failed posts retry with backoff.
- No queued posts yet. Run a test sync to add the latest eligible X post.
Connect X, save your Nostr key, add relays, then run a test sync.
Compose
Stats
Stored locally only. Nothing is sent to analytics services.