File Checksum Calculator

Choose a file and calculate six common checksum formats locally without uploading it; single-file processing is capped at 256 MB because browser digest APIs are not streaming.

Local file

—File

—Bytes

Calculates MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 locally. This page limits a single file to 256 MB because standard browser digest APIs are not streaming.

How to use this File Checksum Calculator

Calculate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 checksums for a local file. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.