md5sum for Windows
md5sum for Windows computes a file's MD5 checksum locally by reading the complete file into browser memory and compares it to an expected value. Free, fast, and completely private.
Windows® and Windows 10® are trademarks of Microsoft Corporation. This independent browser tool is not affiliated with or endorsed by Microsoft, and trademarks belong to their respective owners.
How to use md5sum for Windows
- Choose the file whose bytes you want to checksum.
- Choose Algorithm; Expected checksum is an optional comparison value, not the source content.
- Wait for the selected file checksum to finish; changing the file or algorithm starts a new calculation.
- Use Copy to copy the displayed checksum, then compare it with a checksum from a trusted source.
About this tool
md5sum for Windows computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.
The selected source is processed in your browser. Processing time and supported file sizes depend on the file and your device.
Frequently asked questions
How do I use md5sum for Windows?
md5sum for Windows computes a checksum from the selected file bytes. The optional Expected checksum field supplies a comparison value; it is not a pasted-text hashing input.
Does md5sum for Windows cost anything?
No — md5sum for Windows is completely free, with no sign-up and no hidden limits.
Is my input private in md5sum for Windows?
Yes — your input never leaves your device; md5sum for Windows does all the work in your browser.
Does md5sum for Windows work on mobile?
Yes — md5sum for Windows is just a web page and runs on any modern browser, including phones and tablets.