Gmail GitHub Repositories (2026) · Open Source Tools

Control Gmail, Google Calendar, Docs, Sheets, Slides, Chat, Forms, Tasks, Search & Drive with AI - Comprehensive Google Workspace MCP Server & CLI Tool

Mail and calendar for Linux and macOS. Gmail and IMAP accounts, Google Calendar, contacts, OpenPGP and S/MIME. GTK4 and libadwaita, written in Rust.

:postbox: Gmail desktop app for macOS, Windows & Linux (formerly Gmail Desktop)

+30,000 free and disposable email domains in a single list, validated against DNS every day.

Atom Agent, Open-Source Governed AI Agent Platform for Self-Hosted Automation

Eppie — open protocol encrypted p2p email

Google Workspace in your terminal.

Feed reader (podcast player, basic XMPP client and also Gemini protocol client) which supports RSS/ATOM/JSON and many web-based feed services.

A local emulator for enterprise SaaS APIs — Slack, Gmail, Google Drive, GitHub, Jira, Notion, S3 and more — with the real response shapes, pagination, auth and per-document ACLs, over a corpus you supply.

Built-in Mail & Calendars app clone for Windows.