About

MailCatcher is a local SMTP server that captures messages sent to it and displays them in a web interface. Developers point applications at smtp://127.0.0.1:1025, then review received mail at http://127.0.0.1:1080/.

It is used for application development and testing, with support for HTML, plain text, and source views, attachment downloads, original-message export, keyboard navigation, and a command-line helper called catchmail. The project is open source and can be run as a daemon or in the foreground.

  • Local SMTP capture server
  • Web inbox at 127.0.0.1:1080
  • HTML, plain text, source views
  • Attachment listing and downloads
  • Original email export
  • Catchmail command-line helper
  • Daemon or foreground mode
  • Keyboard message navigation

Free Tier Value

90
FTV score
Est. value Unbounded
Credit card Required
Feature parity 100%

This is an always-free, self-hosted open-source tool with no paid tiers shown on the page and no usage caps described. Because the offering is perpetual and uncapped, there isn’t a defensible monthly dollar equivalent to compare against a paid plan, and no credit card is required.

What's included in the free tier

Details aren't itemized for this entry yet - check the pricing page below for the latest.