diff --git a/README.md b/README.md
index 2206e88..e17df08 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,7 @@ nostr is an open protocol for censorship-resistant global networks created by [@
   - [nostr-launch](https://codeberg.org/rsbondi/nostr-launch), a tool for launching a bunch of relays and clients locally for development and testing.
   - [nostr signer extension](https://github.com/fiatjaf/nos2x), browser extension for signing events on 3rd party site without sharing your private keys with them.
   - [nostr GitHub Action](https://github.com/theborakompanioni/nostr-action), send events from GitHub Actions.
+  - [nos2x](https://github.com/fiatjaf/nos2x), nostr signing and browser extension.
 
 ### Communities
   - [nostr telegram group](https://t.me/nostr_protocol), a telegram group for nostr protocol discussion.