Are my files uploaded?

No. Files are opened and processed by your browser on this device. Nothing is sent to a server, so it works with private documents and even offline once the page has loaded.

Which one should I use?

SHA-256 for checking downloads. MD5 and SHA-1 are fine for spotting accidental changes but are no longer safe against tampering.

Nightroll

Free Hash Generator (MD5, SHA-256…)

Type text or drop a file to get its hashes.

Text

Or choose a file, or drop it hereAny file. It stays on this device.

Compare with

Hashes of text use its UTF-8 bytes, without a trailing newline.

How to make a hash

Type text, or drop a file.
Read the MD5 and SHA hashes.
Paste an expected hash to check that the file is the right one.

Frequently asked questions

Are my files uploaded?: No. Files are opened and processed by your browser on this device. Nothing is sent to a server, so it works with private documents and even offline once the page has loaded.
Which one should I use?: SHA-256 for checking downloads. MD5 and SHA-1 are fine for spotting accidental changes but are no longer safe against tampering.