Security
File checksum
Generate a SHA-256 checksum for any file locally.
LocalFree
# Drop any file here
or click to choose
This tool runs on your device in the browser.
Instructions and limitations
TOOL GUIDE
What this tool is for
File checksum — Generate a SHA-256 checksum for any file locally.
Useful for security awareness, local verification, and learning how common security checks work.
Common uses
- Learn a security concept
- Run a local personal check
- Compare against trusted information
Security awareness and educational use
A hash or checksum alone does not prove that content is safe or authentic. Compare only with a trusted reference and inspect only data or files you own or are authorized to use.