JSON formatter & validator
Format, beautify, validate, and minify JSON online. Pinpoint syntax errors by line and column, sort keys, and copy or download the result.
Hash generator
Generate MD5, SHA-1, SHA-256, SHA-512, SHA3, and CRC32 hashes for text or files. Verify checksums and create HMACs locally.
Drop any file here or click to choose
The file is hashed locally — it is not uploaded
How to use Hash generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, and CRC32 hashes of text or files. Paste an expected hash to verify a download's checksum. Optional HMAC with a secret key.
Hashing runs locally using the browser's Web Crypto API. MD5 and SHA-1 are fine for checksums but should not be used for security.
Hash generator FAQs
Is Hash generator free?
Hash generator is a free online tool on ReallyUseful.Tools. No account is required.
Does Hash generator run in my browser?
Hash generator is designed to run in your browser where supported, so files can stay on your device instead of being uploaded to a server.
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