Flagsmith vs Unleash

Flagsmith vs Unleash
Fact	Flagsmith	Unleash
Language	Python	TypeScript
Licence	BSD-3-Clause	AGPL-3.0
Stars	6.6k	14k
Latest	v2.280.0	v8.2.0
Last push	2026-10-06	2026-10-06
Release cadence	about 1 day between releases	about 18 days between releases
Active contributors	23 commit authors on the default branch in the last 90 days	25+ commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace LaunchDarkly. Alternatives to LaunchDarkly →
Full replacementFlagsmithFeature flags, remote config and segments.
Full replacementUnleashFeature toggles, gradual rollouts and SDKs for most languages.

v2.280.02026-10-05experimentation: read delivery statuses from Postgres and drop the ingestion Redis (#8643) (5c3ba28)
v2.279.02026-10-01experimentation: add the delivery connections db view and status table (#8622) (8ef97c9)
v2.278.12026-09-30api: SDK flag feature filter is case-sensitive (#8630) (c906648)
v2.278.02026-09-30api: Add an evaluation context mapping layer (#8573) (abd6780)
v2.277.02026-09-29SaaS: Add email verification as mandatory in SaaS (#8595) (4ce3684)

v8.2.02026-09-08The New in Unleash page is now also available in Unleash Open Source. It shows the latest capabilities added to Unleash…
v8.1.02026-08-05The projects page now gives you a quicker overview of the status of your projects. Project cards surface anything that…
v8.0.32026-07-10All notable changes to this project will be documented in this file.
v7.5.22026-06-29All notable changes to this project will be documented in this file.
v7.6.52026-06-29All notable changes to this project will be documented in this file.

✓ signed The latest release, v2.280.0, carries a signature GitHub verified.

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unsigned The latest release, v8.2.0, carries no signature GitHub could verify.

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