What does Flagsmith replace?

Flagsmith is a free alternative to LaunchDarkly.

Is Flagsmith open source?

Yes. Flagsmith is licensed under BSD-3-Clause, an OSI-approved open-source license.

Yes (self-hosted server; web UI).

Yes. Flagsmith is a server app you run on your own server, and its repository includes Docker files.

A free, open-source alternative to LaunchDarkly.

Checked Oct 17, 2026 · How we check

Self-hosted server

Replaces it Active Open source · BSD-3-Clause Linux Self-hostable

Flagsmith/flagsmith6.6k★last push Oct 17, 2026checked Oct 17, 2026

Imports your data: built-in LaunchDarkly importer (flags and segments)

Self-host

Runs on your own Linux server, with Docker files in the repo. Setup docs are on flagsmith.com.

What does Flagsmith replace?: Flagsmith is a free alternative to LaunchDarkly.
Is Flagsmith open source?: Yes. Flagsmith is licensed under BSD-3-Clause, an OSI-approved open-source license.
Does Flagsmith run on Linux?: Yes (self-hosted server; web UI).
Can you self-host Flagsmith?: Yes. Flagsmith is a server app you run on your own server, and its repository includes Docker files.