Hash a file online
Compute SHA-256 or MD5 checksums in your browser — verify ISO downloads, firmware, and shared files match expected hashes.
Open Hash ToolNeed MD5 only? See MD5 checksum or SHA-256 generator.
Compare hash to publisher's published SHA-256 before running installers.
Browser Web Crypto hashes files without uploading contents.
Binary-neutral — hash EXE, ZIP, PDF, or video equally.
File hashing for verification
Publishers post SHA-256 alongside downloads. Hash Tool digests your copy locally — mismatch means corruption or tampering.
Frequently Asked Questions
SHA-256 vs MD5?
Prefer SHA-256 for security; MD5 legacy for old checksum lists.
Large files?
Client-side hashing streams in chunks — GB files may take time.
Hash after encrypt?
Ciphertext hash differs from plaintext — hash before encryption for integrity baseline.
Frequently asked questions
Free hash tool?
Yes — local browser hashing without quota.
Files uploaded?
No — hashing runs on device via Web Crypto.
Compare two files?
Hash both and compare strings — or use file compare workflows.