Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE3, and 25+ other cryptographic hashes instantly
What is a cryptographic hash?
Hash Generator computes cryptographic hash values for text or file input. It supports over 25 algorithms including MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE3, and more. Hash values are used to verify data integrity, store passwords securely, and identify files uniquely.
All hashing runs in your browser — neither your input text nor your files are ever sent to a server. You can compute multiple hash algorithms simultaneously to compare outputs side by side.
How to use Hash Generator
Enter text or upload a file
Type or paste text into the input field, or upload a file to hash its binary contents.
Select hash algorithms
Choose one or more algorithms: MD5, SHA-1, SHA-256, SHA-512, BLAKE3, and others. All selected hashes are computed simultaneously.
Copy your hash
Each hash output appears instantly. Click the copy icon next to any hash value to copy it to your clipboard.
Frequently asked questions
What hash algorithm should I use?
For new applications, use SHA-256 or SHA-3. For checksums where speed matters, BLAKE3 is excellent. MD5 and SHA-1 are broken for security purposes and should only be used for legacy compatibility or non-security checksums.
Can I hash a file?
Yes. Upload any file and the tool will compute its hash from the raw binary contents. File hashing is commonly used to verify download integrity — compare the generated hash against the checksum published by the file's source.
Is my data sent to a server?
No. All hashing happens in your browser using the Web Crypto API and WASM libraries. Your input text and files never leave your device.
Can hash values be reversed to recover the original input?
No. Cryptographic hash functions are one-way — it is computationally infeasible to derive the original input from the hash output. This is by design and is what makes them useful for integrity checks and password storage.