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File hash
Crypto and hashing
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All processing for this tool happens in your browser. Your input is not sent to a server.
About this tool
A browser-local file hash utility. Compute a SHA-1, SHA-256, or SHA-512 hash for a local file.
Common uses
- Check the integrity of a download, build artifact, or backup.
- Compare a file with a SHA-1, SHA-256, or SHA-512 digest.
How to use it
- 1.Choose a local file and select SHA-1, SHA-256, or SHA-512.
- 2.Review the file digest and copy it if needed.
Limits and notes
- The file is read into browser memory at once; very large files may exceed device limits, and SHA-1 is for compatibility only.
Frequently asked questions
Is the file uploaded to a server?
No. It is read and hashed only in the current browser.
Which algorithm should I choose?
Choose SHA-256 or SHA-512 for new work; use SHA-1 only when a target format requires it.