Web Tools / Integrity

Checksum Calculator

Calculate common checksums and hashes from pasted text or uploaded files without leaving the browser. Useful for integrity checks, quick comparisons, and verification workflows.

Input

Algorithm

Uppercase output Prefer file input

Text input

File input

Choose file No file selected

Result

Status	Enter text or upload a file to start.

Checksum output

Ready to calculate.

How it works

CRC32 and Adler-32 are fast integrity checks. SHA-1, SHA-256, and SHA-512 are cryptographic hashes that are useful for stronger verification and comparison workflows.