Untwist

Untwist playground

Runs in your browser — nothing is uploaded

Loading engine 0.00 s

Transforms

Unpack bundlesSplit webpack, Browserify and Vite bundles into one file per module

Decompile JSXInactive in Safe mode: JSX decompiling needs Unsafe

Unsafe transformsMore aggressive; can change behaviour in edge cases

webcrack parityMatch webcrack output instead of native transforms

Rename mode

Keep identifiers exactly as in the input (the default).

Fuel limit

steps

No limit Evaluator steps the string-array decoder may spend per decode unit; the default is 50,000,000. No limit lifts it, and Cancel still stops a long run.

Advanced

No deobfuscate Skip the deobfuscate stage: string arrays, decoders, control flow and protections. No unminify Skip the unminify stage that restores readable statements and expressions. Keep human names In simple and unique, leave identifiers that already look human-written alone. Single file Write every unpacked module into one file, with a banner per module.

Max iterations

Stop a stage after N passes over the program (default: run until nothing changes).

Settings live in the URL # Your code is never put in the link.

Input

untitled.js

0 B · 1 line

Paste, type or drop a file anywhere

Output

−before (input)+after (output.js)

output.js · 0 lines

Read-only

Diagnostics

Mode — Exit — Total — Limits — Warnings —

Paste some code and press Run.