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Open source alternatives to Userlist[007]

Userlist sends behaviour-based lifecycle email and in-app messages to SaaS users, with segmentation and campaign automation. Below are 7 self-hostable open source alternatives, ranked by GitHub popularity.

// EDITOR'S TAKE

Mautic is the only project here that really matches Userlist's behaviour-triggered campaigns and contact scoring, though it is a heavy PHP stack to keep running. Listmonk is far easier to operate but is a bulk sender with no lifecycle logic, and Plunk sits between them with a clean API for transactional and broadcast email.

// FREQUENTLY ASKED

What is the best open source Userlist alternative?

Listmonk is the most popular open source Userlist alternative by GitHub stars (19,959 stars). The other 6 options are ranked above.

Are these Userlist alternatives self-hostable?

Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.

Are they free?

All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.