Open source emails projects
Every project in the registry tagged emails, ranked by real GitHub adoption.
Modular auth, payments, emails, and analytics for your product
Self-hosted email marketing with unlimited everything
Transform team email into efficient collaborative workflows
Free HTML email templates for Mailchimp and other emails services
Frequently asked questions
How many open source emails projects are there?
This registry tracks 4 projects tagged emails, with 12,031 GitHub stars between them. The most-adopted is Hexclave at 6,861 stars.
Are these emails projects free to use?
Yes — 2 of the 4 carry an explicit open-source licence across 1 distinct licence, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which emails project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these emails projects still maintained?
2 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.