PLATFORM

Feature flags: shipping safely behind toggles

Deploying code and releasing a feature should be two separate events. A flag system lets you ship continuously and release deliberately.

Feature flags: shipping safely behind toggles

Decoupling deploy from release turns scary launches into a config change you can reverse in seconds.

Progressive delivery

New behaviour ships dark, then opens to internal users, a small percentage of traffic, and finally everyone — with an instant kill switch at every step.

  • Percentage rollouts with sticky bucketing per user
  • Targeting by plan, region, or cohort
  • A kill switch that takes effect without a redeploy

Keep it clean

Flags are debt if they live forever. Each one has an owner and an expiry so the codebase does not rot under stale toggles.

Build on the same network

Deploy to 30 regions on the anycast edge — free to start.

Start building free
Stay in the loop

Engineering deep-dives, monthly

Join 40,000 builders getting our best writing on infrastructure, performance, and reliability. No spam, unsubscribe anytime.