MD5, SHA-256, and CRC32 of any file — processed locally in your browser.
Large files automatically use a Web Worker so the page stays responsive.
MD5, SHA-256, and CRC32 of any file — processed locally in your browser.
Large files automatically use a Web Worker so the page stays responsive.
File Hash Calculator
Drag in a file to compute MD5, SHA-256, and CRC32 in the browser. Large files hash in a Web Worker to keep the UI responsive.
File Hash Calculator Use Cases
- Verify ISO and installer checksums
- Compare build artifacts across CI nodes
- Fingerprint assets before attaching to tickets
- Quick integrity checks for archives and datasets
File Hash Calculator FAQ
Are files uploaded?
No. The file is read with the File API and processed in-memory in your browser.
Why three algorithms?
SHA-256 is a modern fingerprint; MD5 appears in older manifests; CRC32 shows up in zip and network stacks.
What about RAM for huge files?
The whole file is loaded into memory for hashing. Very large files may require a machine with enough free RAM.
Can I verify downloads?
Yes — compare the computed digest to the publisher checksum. Prefer SHA-256 when the source publishes it.