Free Hash Generator — MD5, SHA-1, SHA-256, SHA-512
Compute multiple hash digests of any text at once, instantly and entirely in your browser.
How to generate a hash
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1
Enter your text
Type or paste the text you want to hash into the input box.
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2
Read the digests
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes all update automatically as you type.
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3
Copy the one you need
Click "Copy" next to any hash to grab that specific digest.
Example use cases
Matching an unknown checksum format
Compare your input against a published checksum without knowing in advance which algorithm was used.
Choosing between legacy and modern algorithms
See MD5/SHA-1 alongside SHA-256/SHA-512 when working with older systems that still expect a weaker digest.
Quick data fingerprinting
Generate a fast, reproducible fingerprint of a string for logging, deduplication, or cache keys.
Frequently asked questions
Which hash algorithm should I use?
For anything security-sensitive (passwords, signatures, integrity against tampering), use SHA-256 or SHA-512. MD5 and SHA-1 are considered cryptographically broken and are only suitable for quick checksums or duplicate detection, not security.
Why generate all these hashes at once?
It's convenient when you need to compare a value against a checksum published in an unknown format, or when a spec asks for a specific algorithm you're not sure of ahead of time.
Is my data uploaded anywhere?
No. Every hash is computed locally in your browser using JavaScript and the Web Crypto API — nothing you type is sent to a server.
Can I hash a file instead of text?
This page hashes text. For files, use the dedicated MD5 Generator or SHA-256 Generator tools, which both support file uploads processed locally.