Escape and unescape \u sequences

How Unicode Escape works

Bytes are transformed with the browser's own encoders. Encoding and decoding are reversible, so the page can prove the round trip without keeping a copy. That matters when the payload is a token or a credential: a round trip you can see is safer than one you have to trust.

That is the whole architecture: static files, one script, no upload endpoint to leak or log. Close the tab and the work is gone.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions