Drag a file onto the drop zone or click to browse. The tool reads it locally and shows the MD5, SHA-1 and SHA-256 digests at once.
No — the file is read and hashed entirely in your browser, so it never leaves your device.
MD5, SHA-1 and SHA-256 are all calculated simultaneously for the same file.
Compare the SHA-256 shown here with the checksum published by the software vendor; they must match exactly.