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GO Feature Flag

Simple, complete and lightweight self-hosted feature flag solution, 100% open source. OpenFeature-native with 15+ language SDKs via relay proxy.

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Our Verdict

One of the better OSS self-hosted flag options if you want OpenFeature compatibility without SaaS lock-in.

Pros

  • Self-hosted, 100% open source with generous features
  • OpenFeature-native with 15+ language SDKs
  • Flexible rules and rollout strategies
  • Relay proxy simplifies multi-language setups

Cons

  • Config and ops are your responsibility
  • UI less slick than SaaS alternatives
  • Experimentation features are basic
  • Scaling story needs planning at high QPS
Best for: Engineering teams running flags in-house across many languages Not for: Non-engineers wanting polished SaaS flag management

When to Use GO Feature Flag

Good fit if you need

  • Self-hosted feature flags with 15+ language SDKs
  • OpenFeature-native evaluation via relay proxy
  • Flag definitions stored in Git, S3, or HTTP endpoints
  • Zero-latency local evaluation without remote calls

Lock-in Assessment

Low 5/5
Lock-in Score
5/5

GO Feature Flag Pricing

Pricing Model
free
Free Tier
Yes
Entry Price
Enterprise Available
No
Transparency Score

Beta — estimates may differ from actual pricing

1,000
1001K10K100K1M

Estimated Monthly Cost

$25

Estimated Annual Cost

$300

Estimates are approximate and may not reflect current pricing. Always check the official pricing page.

Project Health

B

Health Score

2.0k 205
Bus Factor

5

Last Commit

today

Release Freq

7d

Open Issues

35

Issue Response

N/A

License

MIT

Last checked: 2026-04-21

Community Discussion

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