We build tools and give them away. Grab the code, use it, fork it - no strings. Everything below is on our GitHub, free and open source.
See and control which apps on your computer are talking to the internet - and block the ones that shouldn't. A friendly, themed build of the open-source Portmaster firewall. Unofficial fork, GPL-3.0.
View on GitHub ->A private, end-to-end encrypted messenger built to resist metadata tracking, with post-quantum-ready encryption. Your conversations stay yours.
View on GitHub ->The self-hostable server that powers Umbra: encrypted group delivery plus an offline mailbox, Tor-friendly, with an encrypted message spool.
View on GitHub ->