File
SHA-256 File Checksum
Calculate the SHA-256 checksum of a file directly in your browser. Verify file integrity without uploading the file.
Tool
Calculate the SHA-256 checksum of a file directly in your browser. Verify file integrity without uploading the file.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free SHA-256 File Checksum tool to generate a SHA-256 fingerprint for a file. Compare the result with a checksum provided by a software vendor, verify that a download is unchanged, or confirm that two files contain exactly the same data. The checksum is calculated directly in your browser, so your file does not need to be uploaded.
Examples
- linux-image.iso
- software-package.zip
- backup.tar
Frequently Asked Questions
What is a SHA-256 checksum?
A SHA-256 checksum is a 256-bit fingerprint usually displayed as 64 hexadecimal characters.
Can SHA-256 verify a downloaded file?
Yes. Compare the calculated checksum with a trusted checksum published by the file provider. Matching values indicate that the file contents are identical.
Is my file uploaded?
No. The SHA-256 checksum is designed to be calculated locally in your browser.