What are the best Mailcatcher repositories on GitHub?

The top-ranked Mailcatcher open source repositories include maildev/maildev, HeliconiaIO/Sandesh, tracked and evaluated by community adoption, stars, and code commits.

How do I find trending Mailcatcher open source tools?

Browse this curated Mailcatcher directory to monitor real-time GitHub star velocity, latest code releases, and rising developer tools updated daily.

Are Mailcatcher GitHub repositories free and open source?

Most Mailcatcher projects listed here are distributed under open source licenses (such as MIT, Apache 2.0, or GPL). Always check individual project repositories for exact license terms.

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Mailcatcher GitHub Repositories (2026) · Open Source Tools

Discover the best Mailcatcher open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.

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2 matching projects · updated Nov 13, 2026 How we rank ↗

#1 TRENDING maildev/maildev TypeScript 2013

:mailbox: SMTP Server + Web Interface for viewing and testing emails during development.

◇ developer-tools ◇ development ◇ docker ◇ mailcatcher

566 ↑ +11 today

6.2K

#2 TRENDING HeliconiaIO/Sandesh Rust NEW 2026

Local-first mail development environment. Point your app at localhost and inspect every message, protocol trace and delivery outcome. SMTP, IMAP, POP3 and a REST API in one self-contained binary.

◇ developer-tools ◇ devtools ◇ docker ◇ email

2 ↑ +1 today

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Mailcatcher GitHub Repositories (2026) · Open Source Tools

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