TEXT & DATA / LOCAL TOOL
File SHA-256 checksum
Calculate a SHA-256 fingerprint for a file in your browser. Compare the result with a checksum supplied by a trusted source.
PRIVATE BY DESIGNBROWSER PROCESSING
Choose a file to get started.
CONVERTEXPRESS
Converting your file
Working on your device…
No upload for local tools No sign-up needed
A PRACTICAL GUIDE
When to use file sha-256 checksum
Check a downloaded file against a checksum published by a trusted source.
How to use file sha-256 checksum
- Choose the local file or files for this tool.
- Review the file sha-256 checksum options shown above.
- Run the tool and inspect the checksum or downloaded archive.
Frequently asked questions
Does File SHA-256 checksum upload my files?
No. The selected files are read in your browser. The website downloads its code, but the selected content is not sent to our conversion server.
What is the file limit?
Choose one file up to 25 MB. Larger files need a separate streaming workflow.
Can I use this on a phone?
Yes, on a current mobile browser with sufficient free memory. Large inputs may take longer on older phones.
What should I check after using it?
Compare the full 64-character SHA-256 value with a checksum from a source you trust. A matching hash alone does not establish who published the file.