Ship faster.
Break nothing.
Pay less than lunch.
Feature flags that evaluate in <1ms. Unlimited seats. $24/month flat. Open-source Apache 2.0. Self-host or cloud.
Trusted by engineering teams at
From idea to production in four steps
People learn through stories, not feature lists. Here's the narrative of how you ship with FeatureSignals.
Create a flag
One click. Or use our API.
Define your feature flag with a key, description, and type. Available in the dashboard, API, or Terraform provider.
Add targeting
Roll out to beta users, then 10%, then everyone.
13 targeting operators, custom attributes, reusable segments, and percentage-based rollouts.
Ship your code
Deploy once. Toggle forever.
Wrap features in a single line of code. All 8 SDKs implement OpenFeature. No vendor lock-in.
Watch it work
See evaluations in real-time. <1ms latency.
Live evaluation counter, per-flag analytics, webhook notifications, and audit logging.
Everything you need to ship
No per-seat pricing. No surprise bills. Just powerful feature management.
Release with Confidence
Deploy behind feature flags. Roll out gradually to 1%, then 10%, then everyone. Kill any feature instantly — no redeploy, no downtime.
Automate Cleanup
The AI Janitor scans your codebase, finds stale flags, and opens PRs to remove them automatically. Keep your codebase clean without lifting a finger.
Migrate Without Risk
Import flags, environments, and targeting rules from LaunchDarkly, ConfigCat, or Flagsmith in minutes. We handle the heavy lifting.
Govern Every Change
RBAC with per-environment permissions. Tamper-evident audit logs. Change approval workflows. SSO with SAML/OIDC. Enterprise-ready governance.
Experiment at Scale
Weighted variants with impression tracking. A/B test anything — feature variations, UI changes, pricing models. Built into every plan, not an add-on.
Deploy Anywhere
Single Go binary. Docker or bare metal. Cloud or self-hosted. Air-gapped environments. Apache 2.0 licensed — no vendor lock-in, ever.
Built for every team
Feature management that scales from indie devs to the Fortune 500. Progressive disclosure means complexity unfolds as you need it.
Sub-millisecond evaluation
Flags evaluate locally from an in-memory cache. No network round-trips on the hot path. 8 language SDKs, all OpenFeature native.
One-line SDK integration
Import, initialize, evaluate. The simplest integration of any feature flag platform. Get started in under 60 seconds.
OpenFeature native — zero lock-in
All SDKs implement the OpenFeature standard. Swap providers with a single line of config. Your code stays vendor-neutral.
Local evaluation with instant sync
Flags sync via WebSocket and evaluate locally. Milliseconds to propagate changes. No polling. No stale data.
Sub-millisecond. In your browser. Right now.
This is real flag evaluation. No server. No API call. No “it depends on your setup.” Toggle the switch and watch the result come back in under a millisecond. The same engine our SDKs run.
Evaluation Result
Radically honest pricing
No dark patterns. No “Contact Sales” to see the price. No per-seat math. Just fair, flat pricing you can understand in one glance.
Free
Up to 50 flags. 1 project, 2 environments, 3 team members. All SDKs + OpenFeature. No credit card required.
- Up to 50 feature flags
- All 8 SDKs + OpenFeature
- Community support
- Apache 2.0 license
Pro
Unlimited everything. AI Janitor, RBAC, audit logs, webhooks. Flat rate — no per-seat fees.
- Unlimited projects & environments
- Unlimited team members
- AI Janitor stale flag removal
- RBAC & audit logs
- Webhooks & integrations
- Email support
Enterprise
SSO, SCIM, 99.9% SLA, dedicated support engineer, on-prem / air-gapped deployment.
- Everything in Pro
- SSO (SAML/OIDC) & SCIM
- 99.9% uptime SLA
- Dedicated support engineer
- On-prem / air-gapped deployment
50 engineers = $24/month on FeatureSignals. ~$416.50/month on LaunchDarkly.
Built in the open. Trusted by the community.
Apache 2.0 licensed. OpenFeature certified. No vendor lock-in. Ever. Your code stays yours, always.
The FeatureSignals difference
We respect our competitors — they build good products. Here's how we choose to be different. No disparagement, just facts.
Ready to take control of your release infrastructure?
Join the engineering teams who ship faster, break nothing, and pay less than lunch.