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First-Class Feature Flags. Out of the box.

Say goodbye to context switching and hello to the building blocks for dynamic logging & configuration.
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Prefab feature flags user interface

Change your systems in production instantly

Feature Flags

Reliable, observable, developer focussed Feature Flags.

Dynamic Logging

Learn more from logs and save money too. Accelerate your understanding of production and improve MTTR.

Dynamic Configuration

Get control of your configuration and make changes in production instantly.

Developer-first from day one.

Change systems in production in an instant, without any hassle. We’ve got the leverage on infrastructure so you can get leverage on your business problem.
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Trusted by

Shepherdly logoShubox logoHuntClub logo

Use the language you want

Ruby logoJava logoNode logoReact logoJavascript logoElixir logoPython logo

Feature Flags without compromise.

To save you precious time and resources, we built the tool we’d want to buy.
See what’s happening. Visualize flag usage. Search for someone and easily put them in the flag.
01Developer Focused
Not just for your product team. Multi-context support lets you target attributes besides the user like your infrastructure, supporting database migrations, and regional changes.
02Fair Pricing
Developers deserve world-class tools at a price that reflects the true costs.

Focus on your levers.

We'll take care of the rest.
Faster configuration changes
From install to value
60-Day Free Trial & Free Tier


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
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

Priced fair for fast implementation


Core Technology

  • Unlimited Configs
  • Unlimited Project
  • Unlimited Environments
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Feature Flags

Enterprise Level Features

  • No seat-based pricing
  • $1/10k Client/Mobile Requests
  • Robust & Realtime
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Dynamic Log Levels

Log Less, Learn More

  • Instant Updates
  • Targeted Logging
  • No additional charge beyond config
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