File Hash Checker for SHA-256 Checksums
Calculate SHA-256, SHA-1, SHA-384, and SHA-512 checksums for local files with browser-side processing for this tool.
A file hash checker reads a file and creates a deterministic checksum such as SHA-256.
If two files produce the same digest with the same algorithm, their bytes are expected to match.
Use the original file
Even a tiny byte change creates a different checksum.
Prefer SHA-256
SHA-256 is a practical default for download verification and file fingerprints.
Drop files here or click to choose
Files are read locally in your browser for checksum calculation.
This tool uses browser Web Crypto. It supports SHA algorithms; MD5 is intentionally not included because Web Crypto does not expose it.
Suggested workflow
File verification path
Use this path when you need to verify a local file and inspect related text fingerprints.
How are files processed?
Selected files are read by the browser for checksum calculation based on the current public implementation.
Which file hash algorithms are supported?
The tool supports SHA-1, SHA-256, SHA-384, and SHA-512. MD5 is not included because browser Web Crypto does not expose MD5.
Can I hash multiple files?
Yes. Select or drop multiple files and the tool will calculate one checksum per file.
What is a checksum used for?
A checksum is often used to compare files, verify downloads, or confirm that a file has not changed.