🧮 CRC32 & Checksum Generator
Enter text to generate CRC32, Adler-32, MD5, and SHA-1 checksums. All calculations happen locally in your browser.
What is a Checksum?
A checksum is a numeric value generated from a file or text input. It is used to verify data integrity, especially during file transfers and storage.
This generator supports the following algorithms:
- 🧾 CRC32 — widely used in compression and archives
- 🔧 Adler-32 — an alternative to CRC32 used in zlib
- 🔐 MD5 — a hash function and checksum algorithm
- 🔐 SHA-1 — used for basic digital signatures and integrity
All calculations are performed client-side in your browser. No data is sent or stored externally. Use it to verify changes, store fingerprints, and debug file issues.