What is a file checksum?
A checksum is a fingerprint calculated from file contents. Matching checksums strongly indicate the bytes are identical.
File Checksum Generator
Generate a cryptographic file fingerprint for integrity checks and file comparisons.
Calculate a file hash
Choose a file and hashing algorithm.
How to use File Checksum Generator
- Choose a file.
- Select the checksum algorithm.
- Select Calculate hash and copy the resulting fingerprint.
Common questions
Which algorithm should I use?
SHA-256 is a strong general-purpose default for file integrity checks.
Will renaming the file change the checksum?
Not when the file contents stay identical; the hash is calculated from the file bytes, not its filename.