Open source certificate-transparency projects

Every project in the registry tagged certificate-transparency, ranked by real GitHub adoption.

projects 3 combined stars ★ 4.2K refresh nightly
01 sn0int ★ 2.5K

Semi-automatic OSINT framework and package manager

last push21 hours ago languageRust licenseGPL-3.0
02 certspotter ★ 1.2K

Lightweight Certificate Transparency Log Monitor

last push8 days ago languageGo licenseMPL-2.0
03 pki ★ 509

The Dogtag Certificate System is an enterprise-class Certificate Authority (CA) which supports all aspects of certificate lifecycle management, including key ar

last push3 days ago languageJava licenseGPL-2.0

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Frequently asked questions

How many open source certificate-transparency projects are there?

This registry tracks 3 projects tagged certificate-transparency, with 4,224 GitHub stars between them. The most-adopted is sn0int at 2,540 stars.

Are these certificate-transparency projects free to use?

Yes — 3 of the 3 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which certificate-transparency 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 certificate-transparency projects still maintained?

3 of the 3 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.