Compare software

MailCatcherMailHog
Free

Free and open source under the MIT License.

 Free

Free and open source under the MIT licence.

macOS, Linux, Web, Command line Windows, macOS, Linux, Self-hosted, Command line
  • Captures email locally for development
  • Shows HTML, plain text, and source views
  • Single Go binary that runs without installation
  • Web UI and API for inspecting captured mail
  • Requires Ruby 3.3 or newer
  • Email encoding support is incomplete
  • Little development activity; last commit in early 2024
  • Intended for testing, not for delivering production mail
Downloadable app, Web application Downloadable app, Self-hosted
Open source Open source
License: MIT License: MIT
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 8, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.