BundleWatch — JavaScript bundle size checks for CI

Stay in control of your bundle size. Every pull request shows how it impacts your bundle, file by file, against the limits you set.

Size limits

Set a maxSize for each file, measured with gzip, Brotli or no compression. A file over its limit fails the build.

Set limits

Posts a bundlewatch commit status when your CI token can write statuses. Make it a required check to block merges when a file is too big.

GitHub statuses

Shows each file's size, limit and change from the baseline.

Read the results

Use GitHub Actions with its built-in token, or run on GitLab CI, CircleCI, Travis CI, Drone and other providers.

Set up CI

Pull requests are compared with the branch they target, where your CI provides it. You choose which branches save a baseline.

Base and tracked branches

Run the service that stores baselines yourself, or run without one.

Use a custom server