Enter text or add files
Type text, paste hex bytes, or drop one or more files of any size.
Free Hash Generator
Hash text or files of any size with 23 algorithms at once, from MD5 and SHA-256 to SHA-3, BLAKE3 and xxHash. Make HMACs with a secret key, and check a download against its published checksum.
Open Hash Generator →How to generate a hash
Pick the algorithms
Choose as many as you need. Turn on HMAC to use a secret key.
Copy or verify
Copy a hash, save a checksum list, or paste the expected checksum to see if it matches.
Manlin services
Make space for what matters
Use Manlin to reflect, plan and take your next step.
Hash Generator FAQ
Is this hash generator free?
Yes, with no account and no limits.
Are my files uploaded?
No. Files are read and hashed in your browser tab, so they never leave your device.
How large can a file be?
Any size your browser can open. Files are read in 8 MB pieces and every chosen algorithm is updated from the same piece, so even multi-gigabyte files aren’t held in memory. Speed depends on your device and the algorithms chosen.
How do I verify a download?
Add the file and paste the checksum from the download page into the compare box. It is matched against every chosen algorithm, in hex or Base64. You can also paste a whole SHA256SUMS or .md5 file to check several files by name.
What is HMAC?
A hash that also depends on a secret key, used to sign API requests and webhooks. Choose the algorithm (usually SHA-256), turn on HMAC and enter the key as text or hex. BLAKE2 and BLAKE3 use their own keyed mode.
Which algorithm should I use?
SHA-256 for checksums and signatures. MD5 and SHA-1 are broken for security and only suit matching older checksums. CRC and xxHash are fast checks for accidental changes, not for security.
Is text hashed as UTF-8?
Yes, exactly as typed, including spaces and line breaks. Choose “Hex bytes” to hash raw bytes instead.
More tools in this category
Online Python CompilerFree online Python compiler: write and run Python 3 code in your browser with input(), numpy, pandas and matplotlib charts, files and share links. No sign-up.
Online Code RunnerFree online code runner: run JavaScript and TypeScript, preview HTML, CSS and JS live, practise SQL on SQLite and run Lua in your browser. No sign-up.
Data Format ConverterConvert JSON, YAML, TOML, XML, CSV, INI, .env and query strings in any direction, with exact line and column errors. Generate TypeScript, Zod, Go and Python types.