Hash Generator — SHA-256, SHA-512, MD5 Hash Online Free
DeveloperGenerate SHA-1, SHA-256, SHA-384 and SHA-512 cryptographic hashes from any text instantly. Uses the Web Crypto API. Free online hash generator — no sign-up.
About the Hash Generator — SHA-256, SHA-512, MD5 Hash Online Free
Our free hash generator creates cryptographic hash values from any text using SHA-1, SHA-256, SHA-384 and SHA-512 — all four generated simultaneously. Built on the browser's native Web Crypto API for security and performance. Hash generation is used for data integrity verification, checksums, digital signatures and security applications. No text is sent to any server — all hashing happens locally in your browser.
How to Use the Hash Generator — SHA-256, SHA-512, MD5 Hash Online Free
- 1
Type or paste the text you want to hash.
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Click Generate Hashes.
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View all four hash values — SHA-1, SHA-256, SHA-384 and SHA-512 — simultaneously.
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Click Copy next to any hash to copy it.
Frequently Asked Questions
What is a cryptographic hash?
A hash function takes any input and produces a fixed-length string. The same input always produces the same hash, but any change to input produces a completely different hash. Hashes are one-way — you cannot reverse them.
Which hash should I use?
SHA-256 is recommended for most uses. SHA-512 for higher security. SHA-1 is outdated and weak — avoid for new security applications.
Can I use SHA-256 for password hashing?
No. Use dedicated password hashing like bcrypt, Argon2 or PBKDF2 which include salting and stretching. SHA-256 is suitable for data integrity and checksums.
Can I hash files?
Currently the tool hashes text input. Convert file content to text or Base64 first, then hash the result.