Repositories list

• WebClients

  Public
  Monorepo hosting the proton web clients

  reactyarnpgp+ 6

  reactyarnpgpmonorepowebmailprotonmailprotoncalendarprotondriveprotoncontacts

  TypeScript

  •

  GNU General Public License v3.0

  •693693 forks•5.5k5.5k stars•119119 issues•2121 pull requests•Updated Jul 15, 2026Jul 15, 2026

• gopenpgp

  Public
  A high-level OpenPGP library

  Go

  •

  MIT License

  •139139 forks•1.2k1.2k stars•2424 issues•1818 pull requests•Updated Jul 15, 2026Jul 15, 2026

• go-crypto

  Public
  Fork of go/x/crypto, providing an up-to-date OpenPGP implementation

  Go

  •

  BSD 3-Clause "New" or "Revised" License

  •127127 forks•408408 stars•1717 issues•1414 pull requests•Updated Jul 15, 2026Jul 15, 2026

• WebPackages

  Public
  Common packages for web projects across Proton

  TypeScript

  •

  GNU General Public License v3.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated Jul 15, 2026Jul 15, 2026

• seaweedfs

  Public
  SeaweedFS is a fast distributed storage system for blobs, objects, files, and data lake, for billions of files! Blob store has O(1) disk seek, cloud tiering. Fi…

  2.9k2.9k forks•1414 stars•00 issues•00 pull requests•Updated Jul 15, 2026Jul 15, 2026

• android-mail

  Public
  Proton Mail Android app

  Kotlin

  •

  GNU General Public License v3.0

  •6969 forks•916916 stars•00 issues•11 pull request•Updated Jul 14, 2026Jul 14, 2026

• go-proton-api

  Public
  Proton API library used by Go-based clients and tools

  gogolangclient+ 3

  gogolangclientrest-apiprotonprotonmail

  Go

  •

  MIT License

  •5858 forks•249249 stars•66 issues•2222 pull requests•Updated Jul 14, 2026Jul 14, 2026

• gluon

  Public
  An IMAP server library written in Go

  gogolangimap+ 5

  gogolangimapprotonprotonmailimap-serverimaplibimap4

  Go

  •

  MIT License

  •3636 forks•542542 stars•1212 issues•55 pull requests•Updated Jul 13, 2026Jul 13, 2026

• openpgp-interop-test-analyzer

  Public
  Python scripts to analyze results from the Openpgp interoperability test suite

  Python

  •11 fork•33 stars•00 issues•00 pull requests•Updated Jul 9, 2026Jul 9, 2026

• android-calendar

  Public
  Kotlin

  •

  GNU General Public License v3.0

  •99 forks•3131 stars•1010 issues•33 pull requests•Updated Jul 8, 2026Jul 8, 2026

• protoncore_ios

  Public
  Swift

  •

  GNU General Public License v3.0

  •1010 forks•2727 stars•33 issues•00 pull requests•Updated Jul 6, 2026Jul 6, 2026

• lightningcss

  Public
  An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

  Rust

  •

  Mozilla Public License 2.0

  •287287 forks•00 stars•00 issues•11 pull request•Updated Jul 3, 2026Jul 3, 2026

• proton-crypto-rs

  Public
  This repository provides several crates for cryptographic operations at Proton

  Rust

  •

  MIT License

  •55 forks•3636 stars•00 issues•11 pull request•Updated Jul 2, 2026Jul 2, 2026

• clients

  Public
  Proton Clients Monorepo

  Rust

  •00 forks•77 stars•00 issues•00 pull requests•Updated Jun 24, 2026Jun 24, 2026

• pmcrypto

  Public archive
  OpenPGP.js wrapper for Proton web clients.

  TypeScript

  •

  MIT License

  •2121 forks•4747 stars•22 issues•77 pull requests•Updated Jun 17, 2026Jun 17, 2026

• rust-mail

  Public archive
  Rust

  •

  GNU Affero General Public License v3.0

  •11 fork•4848 stars•00 issues•00 pull requests•Updated Jun 12, 2026Jun 12, 2026

• proton-telemetry

  Public
  TypeScript

  •

  GNU General Public License v3.0

  •11 fork•77 stars•00 issues•00 pull requests•Updated Jun 9, 2026Jun 9, 2026

• proton-bridge

  Public
  Proton Mail Bridge application

  Go

  •

  GNU General Public License v3.0

  •222222 forks•1.5k1.5k stars•9696 issues•1818 pull requests•Updated Jun 1, 2026Jun 1, 2026

• gosop

  Public
  Stateless CLI for GopenPGP

  cryptographyopenpgp

  cryptographyopenpgp

  Go

  •

  MIT License

  •1313 forks•5353 stars•55 issues•22 pull requests•Updated May 28, 2026May 28, 2026

• ios-mail

  Public
  Secure email that protects your privacy

  Swift

  •238238 forks•1.6k1.6k stars•7171 issues•55 pull requests•Updated May 8, 2026May 8, 2026

• openpgpjs

  Public
  OpenPGP implementation for JavaScript

  JavaScript

  •

  GNU Lesser General Public License v3.0

  •825825 forks•5252 stars•00 issues•11 pull request•Updated Apr 10, 2026Apr 10, 2026

• vat-validation

  Public
  TypeScript

  •

  MIT License

  •00 forks•22 stars•11 issue•00 pull requests•Updated Apr 8, 2026Apr 8, 2026

• timezone-support

  Public
  Lightweight time zone support for your applications or other date libraries.

  JavaScript

  •

  MIT License

  •3030 forks•1111 stars•00 issues•11 pull request•Updated Mar 27, 2026Mar 27, 2026

• winhello

  Public
  Windows WebAuthn API library (Windows Hello)

  C

  •

  Apache License 2.0

  •55 forks•00 stars•00 issues•00 pull requests•Updated Feb 23, 2026Feb 23, 2026

• proton-rust-nation-2026

  Public
  Kotlin

  •

  MIT License

  •00 forks•1010 stars•00 issues•00 pull requests•Updated Feb 19, 2026Feb 19, 2026

• go-autostart

  Public
  A Go library to run a command after login

  Go

  •

  MIT License

  •3333 forks•00 stars•00 issues•00 pull requests•Updated Feb 10, 2026Feb 10, 2026

• rust-email_address

  Public
  A Rust crate providing an implementation of an RFC-compliant `EmailAddress` newtype.

  Rust

  •

  MIT License

  •4444 forks•11 star•00 issues•00 pull requests•Updated Feb 10, 2026Feb 10, 2026

• gomobile-build-tool

  Public
  Go

  •

  MIT License

  •55 forks•33 stars•00 issues•00 pull requests•Updated Feb 6, 2026Feb 6, 2026

• proton-mail-export

  Public
  Go

  •

  GNU General Public License v3.0

  •77 forks•2929 stars•1515 issues•11 pull request•Updated Feb 3, 2026Feb 3, 2026

• protoncore_android

  Public
  Proton Core components for Android

  Kotlin

  •5353 forks•183183 stars•44 issues•00 pull requests•Updated Jan 15, 2026Jan 15, 2026