Quick Start
Decompile your first file with the Wakaru CLI in two minutes.
Wakaru turns production JavaScript back into readable modules. It reverses bundling, transpilation, and minification. No install needed:
# decompile a single file
npx wakaru input.js -o output.js
# unpack a bundle into individual modules
npx wakaru bundle.js --unpack -o out/Without -o, output goes to stdout. Stdin works too:
cat input.js | npx wakaru > output.jsInstall
npm install -g wakaru@latest
wakaru --versionPrebuilt binaries for macOS, Linux, and Windows are on GitHub Releases.
Unpack a bundle
--unpack detects the bundle format automatically and splits the bundle
into one file per module. webpack, Rollup/Vite, esbuild, and even
Bun single-file executables are
supported.
npx wakaru bundle.js --unpack -o out/
npx wakaru dist/ --unpack -o out/ # a whole directory works tooSee Unpack a bundle for the full list of supported bundlers.
Pick a rewrite level
--level chooses how far Wakaru rewrites:
| Level | Use it for |
|---|---|
minimal | Auditing, diffing, malware triage. Behavioral fidelity comes first |
standard (default) | Full helper and syntax recovery under documented assumptions |
aggressive | Maximum readability. May alter edge-case behavior |
npx wakaru input.js --level minimal -o output.jsSee Rewrite levels for what each level may change.
Try it in the browser
The playground runs the same engine in your browser. Turn on Mapping and every output line is colored by the input line it came from:
See Playground for everything it can do.