Moult.

Built for Rails monoliths

Find the code you can safely delete.

Sonar tells you what new code is risky. Moult tells you what existing code you can safely remove — dead code, stale flags, duplication — with runtime-backed confidence, right inside your pull requests.

Free for public repositories — no credit card required.

How it works

01

Runs in your CI

The Moult gem analyses each pull request inside your own CI runner. Your source code never leaves your infrastructure.

02

Uploads results only

Only findings and metrics are sent to Moult Cloud — file paths, line ranges, and confidence. Never file contents.

03

Decorates the PR

A Check Run shows new-vs-baseline candidates for removal — confidence-graded, never a claim that code is certainly dead.

Install in three lines

Add the Action to your CI workflow:

- uses: GoodPie/moult/.github/actions/moult@v1
  with:
    cloud-url: https://moultrb.com

Simple pricing

Open source

Free

Every public repository, fully enforced. Always.

Teams

Paid / private repo

Enforce on private repositories, with history, trends, and a team dashboard.

Get started