Skip to content
appsgit

Amber

Amber is a free, open-source social media client for Android. Nostr event signer for Android. It has 359 GitHub stars and is released under the MIT license, and you can install it from F-Droid.

github.com/greenart7c3/Amber (opens in a new tab)

Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error

Get it on F-Droid (opens in a new tab)View on GitHub (opens in a new tab)

About Amber

Amber is a nostr event signer for Android. It allows users to keep their nsec segregated in a single, dedicated app. The goal of Amber is to have your smartphone act as a NIP-46 signing device without any need for servers or additional hardware. "Private keys should be exposed to as few systems as possible as each system adds to the attack surface," as the rationale of said NIP states. In addition to native apps, Amber aims to support all current nostr web applications without requiring any extensions or web servers.

Privacy and F-Droid

F-Droid builds Amber from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.

No anti-features flagged on the latest F-Droid build.

Screenshots

  • Amber screenshot 1
  • Amber screenshot 2
  • Amber screenshot 3

Screenshots from the app's F-Droid listing.

Similar apps

More open-source social and Fediverse clients

All social & fediverse clients

FAQ

Amber FAQ

Still curious? Email info@appsgit.com.

Is Amber free and open source?

Yes. Amber's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.

How do I install Amber?

You can install Amber from F-Droid (package com.greenart7c3.nostrsigner); the links are on this page. Its GitHub repository also publishes releases (latest: v6.6.9).

Is Amber still maintained?

The repository's most recent commit was on Oct 27, 2026. Its F-Droid listing was last updated on Oct 16, 2026. appsgit only lists apps whose repository had a commit in the last six months.