Decrypt a File
Unlock a file that was encrypted with KIVO, using the password it was locked with.
Free No signup Runs in your browser — nothing uploaded
What it does
Decrypt a File reads the whole document before doing anything, so what comes back is either valid output or a specific error with the position that caused it — not a partially rewritten file.
When you need it
Usually when something has already gone wrong: a config file an application will not load, an API response that has to be read by a human, or an export that has to be checked before it goes anywhere near a database.
Limits and caveats
Key order is preserved as it appears in the input. Very large documents are limited by your device's memory rather than by an upload cap, since the parsing happens locally. Everything happens in your browser, so the file never leaves your device.
How to decrypt a file
- Drop or choose your KIVO file.
- KIVO processes it instantly — no waiting for uploads.
- Download the result. That's it.
Frequently asked questions
- It says the password is wrong but I'm sure it isn't.
- Then the file was altered in transit — the two are deliberately indistinguishable. AES-GCM authenticates as well as encrypts, so any change to a single byte makes it refuse to open rather than hand back damaged data. Ask for the file again.
- Does the password go anywhere?
- No. The decryption happens in this tab; the password never leaves the page and there is nothing here to send it to.
- Do my files get uploaded?
- No. This tool runs entirely in your browser, so the file never leaves your device.