Open-source feature flags and remote config with straightforward self-hosting.
Flagsmith provides feature flags, remote configuration, segments and A/B testing with SDKs for the major languages, available as SaaS, private cloud or fully self-hosted via Docker or Kubernetes. Its scope is deliberately narrower than the analytics-heavy platforms.
Best for
From $45 per month (indicative, Start-up plan)
Free tierFree tier: Free cloud tier with a monthly request allowance; open-source self-hosting is unlimited.
What drives the bill: Considerably cheaper than LaunchDarkly, and self-hosting removes usage pricing entirely.
Check current pricing on Flagsmith’s siteFigures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.
No reviews of Flagsmith yet. If you have used it in anger, yours would be the first.
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