Open source ldap projects

Every project in the registry tagged ldap, ranked by real GitHub adoption.

projects 3 combined stars ★ 32K refresh nightly
01 authelia ★ 29K

The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.

last push10 hours ago languageGo licenseApache-2.0
02 caddy-security ★ 2.2K

🔐 Authentication, Authorization, and Accounting (AAA) App and Plugin for Caddy v2. 💎 Implements Form-Based, Basic, Local, LDAP, OpenID Connect, OAuth 2.0 (Git

last push4 hours ago languageGo licenseApache-2.0
03 davmail ★ 761

DavMail POP/IMAP/SMTP/CalDAV/CardDAV/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at

last push13 hours ago languageJava licenseGPL-2.0

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Frequently asked questions

How many open source ldap projects are there?

This registry tracks 3 projects tagged ldap, with 32,096 GitHub stars between them. The most-adopted is authelia at 29,096 stars.

Are these ldap projects free to use?

Yes — 3 of the 3 carry an explicit open-source licence across 2 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 ldap 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 ldap 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.