Dev / MD5
MD5 checksum (not security)
Checksum a string or file locally. Not for security.
Last checked: September 2026. Confirm millimetres, pixels, and KB on the official form. Not a government website.
Runs in this tab. 0 uploads. MD5 is a checksum, not security.
Upload
Drop a file for SHA-256
Hashed with SubtleCrypto on this device.
Choose file01
Drop
Drop the file. It stays in this browser tab.
02
Preset applied
Set the cap or preset for this job.
03
Download
Download from this device. Nothing is uploaded.
FAQ
Questions, answered
Secure?Open
No. Collision-prone. Use SHA-256.
Is anything uploaded?Open
No. This tool runs in your browser tab. Close it and the data is gone.