Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Generate common cryptographic hash digests from any text, entirely in your browser.
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About this tool
The Hash Generator computes MD5, SHA-1, SHA-256 and SHA-512 digests from any text you enter, updating all four hashes at once as you type. A hash is a fixed-length fingerprint of your input: the same text always produces the same digest, while a single changed character produces a completely different result.
Developers use it to verify checksums, generate cache keys, compare file or message fingerprints, and sanity-check hashing code. The SHA family runs through your browser's native Web Crypto API for speed and correctness, and the whole process happens locally — the text you hash never leaves your device.
How to use
- Type or paste the text you want to hash into the input box.
- Read the MD5, SHA-1, SHA-256 and SHA-512 digests generated instantly below.
- Use the copy button next to any digest to grab it for your code or checksum comparison.
- Paste an expected checksum elsewhere and compare it against the matching digest here.
- Clear the input to start over with new text.
Features
- Four algorithms at once: MD5, SHA-1, SHA-256 and SHA-512.
- Live results that recompute as you type.
- SHA hashes computed with the browser's native Web Crypto API.
- One-click copy for every digest, colour-coded by algorithm.
- Consistent lowercase hexadecimal output ready for comparison.
- Fully client-side — no text is ever uploaded.
Frequently asked questions
Does my text get sent to a server to be hashed?
No. Hashing runs entirely in your browser, so whatever you type stays on your device and is never uploaded.
Can I reverse a hash back to the original text?
No. Cryptographic hashes are one-way functions; there is no way to decrypt a digest back into the input. This tool only generates hashes, it does not reverse them.
Should I still use MD5 or SHA-1?
MD5 and SHA-1 are fine for non-security uses like checksums and cache keys, but they are considered broken for security purposes. Prefer SHA-256 or SHA-512 where collision resistance matters.
Why does MD5 look different from SHA-256?
Each algorithm produces a digest of a fixed size: MD5 is 128-bit (32 hex characters), SHA-1 is 160-bit (40), SHA-256 is 256-bit (64) and SHA-512 is 512-bit (128).
Is this suitable for hashing passwords?
Plain hashes are not recommended for storing passwords because they are too fast to brute-force. Use a purpose-built password hash such as bcrypt instead.