One or more files of any type
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File Checksum
Generate and compare SHA checksums without uploading files.
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No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool
Use file checksum without uploading files
Calculate standard cryptographic checksums locally to compare downloads, archives, and transferred files.
Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.
Three steps
- Choose one or more files to verify.
- Select the checksum algorithm required by the published reference.
- Compare the complete generated value with the trusted checksum.
Useful for
Common checksum tasks
- Verifying downloads
- Checking transfer integrity
- Comparing archive copies
Practical details
What to know before you start
SHA checksum values displayed as hexadecimal text
- A checksum verifies matching bytes; it does not prove a file is safe.
- Compare against a value obtained from a trusted source.
- Use the same algorithm on both sides of the comparison.