Hash Generator (SHA-256)

Generate SHA-256, SHA-1, and MD5 hashes from any text instantly.

Input Text

Enter some text above to generate hashes automatically.

Hashes are computed in your browser using the Web Crypto API. No data is sent to any server. MD5 is not available in the Web Crypto API and is omitted for security reasons.

About Hash Generator (SHA-256)

Free hash generator that computes SHA-256, SHA-512, SHA-1, and MD5 hashes from any text input using the Web Crypto API. Essential for verifying data integrity, generating checksums, comparing file signatures, and understanding cryptographic hashing. All hashing happens in your browser — your input text is never transmitted to any server. Includes copy buttons for each hash format.

Frequently Asked Questions

Which hash algorithm should I use?▾

For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are considered cryptographically broken and should only be used for non-security checksums. SHA-256 is the most widely used secure hash algorithm today.

Can I reverse a hash back to the original text?▾

No. Cryptographic hash functions are one-way — you cannot reverse a hash to recover the original input. This is by design and is what makes hashing useful for password storage and data integrity verification.