Hash Calculator
Calculate MD5, SHA-1, SHA-256, SHA-512, and CRC32 hashes⌘⏎ run · ⇧⌘C copy · ⎋ resetINPUT
Enter any text to calculate its hash
OUTPUT
❯ _Run an operation to see results here.then press ⌘⏎
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What is Hash Calculator?
The Hash Calculator computes MD5, SHA-1, SHA-256, SHA-512 and CRC32 digests from any text you type, using your browser’s Web Crypto API. Hashes are one-way fingerprints used to verify file integrity, build cache keys, or compare data without storing it. Your input is processed locally and never sent to a server.
How to use it
- 01Type or paste text into the input.
- 02All digests compute instantly as you type.
- 03Copy any hash with a single click.
FAQ
Is MD5 or SHA-1 safe for security?
No — both are broken for collision resistance. Use SHA-256 or SHA-512 for anything security-related; MD5/SHA-1 are fine only for checksums.
Where is the hashing done?
In your browser via the Web Crypto API — your input never leaves the page.
Can I hash a file?
This tool hashes text; for large files use a checksum tool that streams the bytes.
Examples
Calculate MD5 hash{
"text": "Hello, World!"
}