nos2x

Nostr Signer Extension

nos2x - Nostr Signer Extension for Chrome

nos2x is a Chrome extension specifically built to enhance your security as you interact with Nostr events on web applications. This extension ensures a secure environment by enabling you to sign these events without having to expose your keys. It fully implements NIP-07, carrying out all specified functionalities with utmost precision. nos2x makes your interaction with Nostr events not only safe but also effortless.
Install from Chrome Web Store

Extension stats

Manifest V3
By: fiatjaf
Users: 6,000+
Rating: 4.85
(13)
Version: 2.5.0 (Last updated: 2025-02-20)
Creation date: 2022-01-28
Permissions:
  • storage
  • activeTab
  • windows
Size: 724.99K
Full description: See detailed description

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to use
  • Simple, private and secure
  • Helps improve safety of private keys for Nostr-compatible web applications
  • Functions as expected
  • Useful for all Nostr users
Cons
  • Limited options for authorization, such as only allowing 'authorize once' or 'authorize forever'
Most mentioned
  • Simple and secure
  • Works as expected
  • Useful for private key safety
User reviews
Simple, easy to use = highest praise possible.
by David Ja, 2024-06-07

Good so far, only wish it gave more options beside authorize once, and forever. How about authorize "for 24 hours." It would have to keep track but would be more useful than authorize once.
by Carlos Junco, 2023-07-03

It's really helpful to have this extension that improves the safety of private keys for Nostr-compatible web applications. The extension functions exactly as expected.
by Joris Raymaekers, 2023-04-07
View all user reviews

Extension safety

Risk impact

nos2x requires very minimum permissions.

Risk impact analysis details
  • High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
  • Low ******* ****** ** *** ********* ********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of nos2x. Use it at your own risk.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details

Similar extensions

Here are some Chrome extensions that are similar to nos2x: