Security & privacy

Your file should not need to leave your device

UnpackNest is designed to keep supported processing in the browser whenever the task can be completed locally.

Local RAR processing

The RAR tool reads and extracts archive bytes in the browser using a Web Worker and WebAssembly. The extraction flow does not require sending the archive to our server.

Unsafe entries are blocked

The tool checks paths, links, encrypted entries and output limits before extraction. Unsafe entries are shown as blocked rather than being silently rewritten.

No hidden upload requirement

The verified RAR flow works without a file-upload API. Normal webpage requests still occur to load the site itself.

Know the limits

Browser memory and device limits still apply. Password-protected entries are not currently extracted, and unsupported cases are reported instead of guessed.