10x More Useful Logging for
Laser-Targeted Insights

Realtime Log Levels, Dynamic Configuration & Feature Flags for all

Change Levels Instantly

For any class, package or logger, change the log level instantly. No restarts, no redeploys, no waiting.

Laser focus to debug

Target your log levels to by user_id, team or transaction_id, aws region or service. Whatever your dimensions are, you can laser target logging output level.

Save money

Logging can be expensive, but we're on your side. Auto-shutoff helps you save money.

See it in action

Watch the video to see how easy it is to get more information about a production issue. Get more value from your existing logging code and log aggregator with 5 minutes of setup.

Fully Operational Feature Flags

Witness the power of this fully armed and operational platform!
Prefab has it where it counts. Instantaneous feature flag updates, powerful segmentation features, developer friendly debugging experience, robust audit logs. We've got everything you need, without crazy seat based pricing.

Instant Updates

Instantaneous local flag evaluation backed by a sophisticated streaming system that keeps all your servers up to date instantaneously.

Powerful Segmentation

Create reusable segments, Powerful matching rules & Target specific users

Dynamic Log Levels

Make logging fun again. Change log levels instantaneously across your fleet. Get debug logs for a specific user and use Timed DEBUG Sessions to automatically reset when you're done.

Feature Flags

Don't leave home without them. Feature flags enable Moving Fast and Breaking Less. All the features you need, like percentage rollouts, multiple targeting rules & shared segments. Evaluated locally without API calls for reliability & speed.

Dynamic Configuration

You're five minutes away from reliable configuration with instant updates.
This is the sort of technology that is usually only available at large tech savvy FAANG, but there's no reason you shouldn't have it too..

Sounding good?
Cut a branch and try it out.

Reliability is Job #1

Uptime is incredibly important to us at Prefab. Configuration is critical infrastructure so it's important to have a belt & suspenders approach.

Prefab clients store all config locally so they are robust to network blips or outtages. If Prefab is unavailable all clients will continue to work as is because they keep config locally, but they will not be able to receive new configuration.

If Prefab is unavailable new clients will be able to start as long as they can read from Fast.ly. An updated copy of your config is always available in Fast.ly so clients can bootstrap off this highly available source.

Read more about reliability

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Get started with Prefab

We should have you up and running in 5 or 10 minutes. 30 Day Free trial and very reasonable usage based pricing after that, because our mission is to make development better for all engineers, not just enterprise.