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Free alternatives to LaunchDarkly

Swap LaunchDarkly for Unleash, Flagsmith or GrowthBook.

3open source3run on Linux3self-hostable

Prices and project data checked · How we check

Usage-based Foundation Checked Oct 17, 2026

3 alternatives

Unleash

Self-hosted server About Unleash →
Replaces it Active Open source · AGPL-3.0 Linux Self-hostable
Unleash/unleash13.9k★last push Oct 16, 2026checked Oct 17, 2026

Free edition is limited to 1 project and 2 environments, with no SSO, custom roles or change approvals.

Imports your data: scripted migration through both APIs (Unleash publishes a guide)

Self-host

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

Flagsmith

Self-hosted server About Flagsmith →
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.

Replaces it Active Open source · MIT Linux Self-hostable
growthbook/growthbook8.5k★last push Oct 17, 2026checked Oct 17, 2026

Imports your data: built-in LaunchDarkly importer (projects, environments, flags)

Self-host

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

At a glance

Free alternatives to LaunchDarkly compared
AlternativeVerdictLicenseLinuxAURSelf-hostStars
Unleash Replaces it AGPL-3.0 open source Yes — Yes 13.9k★
Flagsmith Replaces it BSD-3-Clause open source Yes — Yes 6.6k★
GrowthBook Replaces it MIT open source Yes — Yes 8.5k★

LaunchDarkly alternatives: questions

Is there a free alternative to LaunchDarkly?
Yes. The 3 free alternatives are Unleash (open source, AGPL-3.0), Flagsmith (open source, BSD-3-Clause) and GrowthBook (open source, MIT).
How much does LaunchDarkly cost?
LaunchDarkly has usage-based pricing, so there is no fixed price to compare. Source: the official pricing page at launchdarkly.com, checked Oct 17, 2026.
Which LaunchDarkly alternatives run on Linux?
Unleash (self-hosted server; web UI), Flagsmith (self-hosted server; web UI) and GrowthBook (self-hosted server; web UI).
Can you self-host a LaunchDarkly alternative?
Yes. Unleash, Flagsmith and GrowthBook run on your own server.
Are these LaunchDarkly alternatives open source?
Yes. All 3 use OSI-approved open-source licenses: Unleash (AGPL-3.0), Flagsmith (BSD-3-Clause) and GrowthBook (MIT).

Built or know a better alternative to LaunchDarkly? Suggest it free, or get it featured on this page.

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