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Dev tools · April 21, 2026

foff — feature config

Decouple Releases from Deployments

What it does

Fully Operational Feature Flags, or FOFF for short, is a feature-flag and configuration-management service that gives your team fine-grained control over which features are enabled and for whom. With FOFF, you create configs once and automatically resolve the correct value based on any hierarchy you define for your user. Features ✨ * Decouple deployments from releases * Perform A/B tests * Contain a broken feature with the help of killswitches * Perform gradual rollouts of the application

Does the same job

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  • Flagsmith2021 · ▲128

    Feature flag, remote config and AB testing platform

  • Flipt Cloud2024 · ▲165

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  • FF
    FFlags – Feature flags as code, served from the edge2025 · fflags.com · ▲42

    Hi HN, I'm the creator of FFlags. I built this because I wanted a feature flagging system that gave me the performance and reliability of an enterprise-scale solution without the months of dev time or the vendor lock-in. The core ideas are: 1. Feature Flags as Code: You define your flag logic in TypeScript. This lets you write complex rules, which felt more natural as a developer myself than using a complex UI for logic. 2. Open Standard: The platform is built on the OpenFeature standard (specifically the Remote Evaluation Protocol). The goal is to avoid vendor lock-in and the usual…

  • FG
    Featurevisor – Git-based feature flags and experiments management2023 · featurevisor.com · ▲48

    Why? - Decouple application deployment from releases How it works: - Make changes to your features and segments (YAMLs) via Pull Requests - Generate datafile (JSON file) in CI/CD workflow and upload to your CDN - Fetch datafile in your application runtime and consume with SDKs Supports: - Feature flags: boolean flags - Experimentation: a/b tests - Segments: targeting traffic with conditions - Variables: namespaced under each feature and conditional - Gradual rollouts: avoid big bang releases, go from 0% to 100% - Consistent bucketing: same user sees same variation - Multiple…

  • Bucket Flags2024 · ▲239

    Feature flagging that's purpose-built for B2B

  • Vercel FlagsApr 2026 · vercel.com · ▲207

    Feature flags, targeting rules, rollouts. All from Vercel.

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