Generate MD5, SHA-1, SHA-256 and SHA-512 hashes online
A cryptographic hash turns any input into a fixed-length fingerprint. The same input always yields the same hash, yet changing a single character produces a completely different result — which is why hashes are used to verify downloads, compare files, and store passwords safely. This free hash generator computes MD5, SHA-1, SHA-256, and SHA-512 side by side, so you can copy whichever digest you need without switching tools.
How to generate a hash
- Type or paste your text into the Enter Text box — every hash updates as you type.
- Or choose a file with Upload a File to compute an MD5 and SHA-256 checksum of its contents.
- Read the MD5, SHA-1, SHA-256, and SHA-512 outputs and use the Copy button beside each one.
Common uses for a hash calculator
- Verifying a downloaded file against a published MD5 or SHA-256 checksum to confirm it was not corrupted or tampered with.
- Comparing two pieces of text or two files to see whether they are byte-for-byte identical.
- Producing checksums and digests while building or debugging APIs, caches, and integrity checks.
- Learning how different hash algorithms and output lengths compare.
Which hash algorithm should you use?
SHA-256 is the sensible default for integrity and security work today. SHA-512 offers a longer digest, while MD5 and SHA-1 are older and considered broken for security — keep them for non-security checksums and legacy compatibility only. Note that a hash is one-way: it verifies data, it does not encrypt it, and it cannot be reversed back into the original input.
Private by design — nothing is uploaded
All hashing runs entirely in your browser using the native Web Crypto API. Your text and files never leave your device, so you can safely hash sensitive content. Hashing a password? Start from a strong one with our password generator, or convert binary data first with the Base64 converter.
Need a custom tool or internal developer utility built for your team? Get in touch with SR Infobiz.