File Hash & Checksum Calculator
NEWVerify file integrity by computing its cryptographic hash — drag a file or paste text and get MD5, SHA-1, SHA-256, and SHA-512 instantly.
Drag a file here, or click to browse
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Verify Checksum
How to use File Checksum
- Drag a file or paste text.
- The hashes compute automatically.
- Optionally paste an expected hash to verify.
- Copy any hash with a single click.
What is File Checksum?
Use the browser's built-in Web Crypto API to hash a file or paste text. Compare a computed hash against an expected value to check if the file was modified in transit.
FAQ
- Where does the hashing happen?
- Entirely in your browser using the Web Crypto API. The file is never uploaded.
- Is MD5 secure?
- MD5 is no longer cryptographically secure, but it's still widely used for file integrity checks (e.g. checking a downloaded ISO matches its checksum).
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