Skip to main content

Feature Flags That Fit Your Budget

With a seat for everyone
Try It Out
Prefab feature flags user interface

Feature Flags without compromise.

To save you precious time and resources, we built the tool we’d want to buy.
00Developer Focused
Excellent CLI & Editor Plugins. Target cloud region or availability zone to support database migrations and tricky rollouts
01Fair Pricing
Straight forward and usage based, you won't find better pricing out there. Developers deserve world-class tools without painful pricing.
Trust your eyes. See what’s happening by visualizing flag usage. Search for someone and easily put them in the flag.

Use the language you want

Ruby logoJava logoNode logoReact logoJavascript logoElixir logoPython logo

Stay in Your Flow. Stay in Your Editor

Is this feature flag a zombie? Is it stale? Don't wonder, just hover over the flag to see realtime evaluation data.

Autocomplete flag names or create new flags right from your editor.

Testing flag behavior locally? Just click 'personal override' to toggle the flag just for you.

Developer-first from day one.

Give your engineers a developer experience that keeps them in their flow. Diagnose and fix production systems in an instant. Develop locally with our slick as hell editor tools.
Talk to an Engineer
We switched to Prefab from LaunchDarkly and couldn't be happier. The clients are user-friendly with a powerful UI, and their dynamic logging is a game-changer. We can toggle log levels across our entire stack [Rails, Node, and Typescript], saving costs by enabling low-level logs only when needed.
Mark Faga
HuntClubMark FagaPrincipal Software Engineer
Dynamic configuration gives us so much more control over our multi-tenant system. We use it everywhere to make a more stable and reliable system. We get a control panel of switches and dials to change everything from queue sizes and batch limits to in-application announcements.
Tom Petr
SemgrepTom PetrPrincipal Software Engineer
I'm running a startup, but that doesn't mean I don't want the dynamic control over my configuration that I had when I was on a team with 100 engineers. Prefab gets this and gives me the core dynamic configuration and feature flags that can be my foundation as we scale.
Mark Greene
ShepherdlyMark GreeneFounder

Also We Fixed Secret Management

Share Secrets between developers, projects & languages.

CLI based. Zero-knowledge. No extra cost.

And You Can Change Log Levels Instantly

Debug logging doesn't help if it's not turned on,

But it would be too expensive to have it on all the time.


Best for side projects or evaluation

Start Free
  • Unlimited Flags & Users
  • Evaluation Charts
  • Dynamic Logging
  • Up to 5 Server Connections
  • Up to 1.5M Requests (~5k MAU)
  • $2 per additional server
  • $10 per additional 1.5M req
  • SSO with Google


Best for scaling teams

Start Trial
Everything in Free
  • Up to 100 Servers
  • Up to 15M Requests (~50k MAU)
  • $1 per additional server
  • $99 per additional 15M req
  • SAML (Okta, GSuite)


Best for compliance or large volume

Start Trial
Everything in Pro
Pricing Model
Unlimited Flags & EnvironmentsYesYesStarting > $300Yes
Multi Context (user, team, etc.)YesNoNoYes
User Data Page & Quick AssignmentYesYesNoYes
Reusable SegmentsYesYesYesYes
Percentage RolloutsYesYesYesYes
Flag Infra
Real-Time UpdatesYesYesNo (Polling)Yes
Evaluation MetricsYesBasicNoYes
AB Testing Metrics in ToolYesNoNoNo
Dynamic Log LevelsNoNoNoYes
Workflow automation
Advanced PermissionsYesYesYesYes
Required ApprovalsYesNoNoNo
Slack IntegrationYesYesYesYes
Security & compliance
SSO (Google)YesYesYesYes
SAML / OktaYesYesYesYes
Audit Log for Flag ChangesYesYesYesYes
Email SupportYesYesYesYes
Live ChatNoYesYesYes