NPM Package Size Checker

Check the bundle size of any npm package. See minified size, gzipped size, download time, and dependency count. Compare multiple packages side by side. Uses the bundlephobia and npm registry APIs.

Loading tool…

Bundle Analyzer

Visualise JS bundle contents as an interactive treemap.

Code & Data Tools

JSON Formatter

Prettify, validate, and minify JSON in one click.

Code & Data Tools

Regex Tester

Test and debug regex patterns with live highlighting.

Code & Data Tools

Browse all tools

Related Tools