File Checksum
SHA digests of any file, in-browser.
Drop a file, or click to choose
The file is read in this tab — nothing is uploaded.
Compare a digest with the one published by the file's author to verify the copy you have is byte-for-byte identical. Very large files are read into memory whole, so expect a pause on multi-gigabyte inputs.
About this tool
Compute SHA-1, SHA-256, SHA-384 and SHA-512 checksums of a dropped file to verify downloads — the file is read locally and never uploaded.
It runs completely in your browser — no input is sent anywhere, and this page loads no ads or third-party scripts, so it is safe to use with data you would not paste into a hosted service.