Compare 8 free feature flags tools, free tiers, and developer deals. Verified pricing for LaunchDarkly, Flagsmith, Harness Feature Flags, GrowthBook, Statsig and more.
What this name holds: Flag and experiment services that switch behaviour without a deploy.
We track 8 feature flags services with a free tier we hold as current and 1 without. This category has seen some movement — 5 pricing changes recorded across vendors.
| Vendor | Tier | Description | Verified |
|---|---|---|---|
| LaunchDarkly | Developer | Feature management — unlimited seats and flags, 1K client MAU, 1 project, 3 environments, A/B testing, 5K session replays/month | 2026-07-23 |
| Flagsmith | Free | Feature flags and remote config — 50K API requests/month, unlimited flags/environments/identities, A/B testing, 1 user | 2026-09-09 |
| Harness Feature Flags | Free | Feature flags (formerly Split.io) — 2 developers, 25K client MAU, unlimited flags and environments, CI/CD pipelines for rollout | 2026-07-24 |
| GrowthBook | Starter / Open Source | Cloud free: 3 users, unlimited flags/experiments/traffic. Self-hosted free: unlimited everything. Warehouse Native support | 2026-08-28 |
| Statsig | Free | 2M+ metered events/month free, unlimited feature flags at all tiers. Includes 50K session replays. Experimentation and analytics built in | 2026-09-09 |
| Abby | Free | Open-Source feature flags & A/B testing. Configuration as Code & Fully Typed Typescript SDKs. Strong integration with Frameworks such as Next.js & React. Free plan: 1,000 events/month, 3 feature flags/remote configs, 1 A/B test, 5 environments. | 2026-07-04 |
| ConfigCat | Free | ConfigCat is a developer-centric feature flag service with unlimited team members (within 1 permission group). Forever Free plan: 10 feature flags, 2 environments, 2 products, 5M config JSON requests/mo, 20 GB network traffic/mo, 2 segments, 4 targeting rules/flag, 1 webhook, 7-day audit log retention. | 2026-08-27 |
| Hypertune | Free | Superseded: As of 2026-08-28, hypertune.com/pricing reads: Free: $0 / month, 1m CDN requests, 1m analytics events, Up to 3 team members, Unlimited CDN bandwidth and service connections, Unlimited MAUs / MTUs, Unlimited environments and projects, Unlimited feature flags and experiments. The service will shut down on 10th August 2026. We are not publishing our stored Hypertune terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ | 2026-07-05 |
| Toggled.dev | Free | Enterprise-ready, scalable multi-regional feature toggles management platform. Free plan: 1 project, up to 10 toggles/project, 2 environments/project, 2 seats, unlimited MAU/clients. SDK, analytics dashboard, release calendar, and Slack notifications included. | 2026-07-07 |
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