Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of any text, all at once.
How this tool works
Type or paste your text
Any string you want a checksum for.
Four hashes compute at once
MD5, SHA-1, SHA-256, and SHA-512 are all generated together, no need to pick one first.
Compare against a known hash
Check the result against a published checksum to confirm a file or message wasn’t altered.
Copy the one you need
Each hash has its own copy button, with a brief confirmation when copied.
Quick facts
- Category
- Encoders & Decoders
- Best for
- Verifying a downloaded file wasn't corrupted
About this tool
Type or paste any text to see its MD5, SHA-1, SHA-256, and SHA-512 hash computed side by side, each with its own copy button. SHA-1, SHA-256, and SHA-512 run through the browser’s native Web Crypto API (crypto.subtle.digest), the same implementation used for TLS and WebAuthn, so those three are computed with a well-audited, hardware-accelerated routine. MD5 isn’t supported by Web Crypto, so it’s computed with a small self-contained implementation of the standard RFC 1321 algorithm instead. Useful for verifying file or message integrity, generating cache keys, or checking that two pieces of text are byte-for-byte identical. Everything runs client-side - nothing you hash is ever sent to a server.
Why use this tool
Four algorithms, one input
No need to run the same text through four separate tools - all hashes appear together.
Native Web Crypto for SHA
SHA-1/256/512 use the browser’s built-in crypto.subtle, the same engine used for TLS.
Honest security guidance
Clearly notes that MD5 and SHA-1 aren’t safe for security-sensitive use, not just listed as if interchangeable.
Deterministic and private
The same input always produces the same hash, computed locally with nothing transmitted.
Frequently asked questions
MD5 and SHA-1 are still common for non-security checksums like verifying a download completed without corruption or generating a quick cache key, since they’re fast and short. SHA-256 is the current standard for security-sensitive integrity checks, digital signatures, and blockchain applications. SHA-512 offers a larger output and is used where a longer digest is preferred, such as some password-hashing schemes and high-assurance protocols.
No - both have known collision vulnerabilities (researchers can construct two different inputs that produce the same hash), which makes them unsuitable for digital signatures, password storage, or any use case where an attacker might try to forge content that matches a given hash. They remain fine for non-adversarial purposes like checksums, but SHA-256 or SHA-512 should be used wherever security matters.
Hash functions are deterministic - they always produce identical output for identical input, and even a one-character change in the input produces a completely different hash. That determinism is exactly what makes hashes useful for verifying that two files or messages are byte-for-byte the same without comparing their full contents.
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