rollfuse Tools: Free Calculators and Generators for Feature Flagging

Rollout risk calculator

Put real numbers on a staged rollout before you ship it. Enter your traffic and your error rates to see the blast radius, a safer first step, and how long to watch it. Nothing you type leaves your browser.

Guardrail Generator

You already have a Prometheus query that tells you when a release is going badly. This turns it into a guardrail: a metric, a threshold, and what happens when the threshold is crossed. Nothing is sent to your Prometheus, and the query never leaves your browser.

LaunchDarkly migration checker

Drop in a LaunchDarkly flags export and find out what a move to rollfuse would actually involve: how many flags and targeting rules you have, which constructs map straight across, and which ones need a person to look at them.