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 checksums or compatibility.

Can I reverse a hash?

No. Cryptographic hash functions are one-way: you cannot recover the original input from the hash. This is by design and is what makes hashes useful for password storage and integrity verification.

Why are all hash outputs the same length?

Hash functions produce fixed-length output regardless of input size. MD5 produces 128 bits, SHA-1 produces 160 bits, SHA-256 produces 256 bits, and SHA-512 produces 512 bits.

// hash-generator

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files.

Input Text

How to Use Hash Generator

Choose input-Select Text mode to hash a string, or File mode to hash a file.
Enter data-Type or paste text, or drag and drop a file.
Select format-Choose Hex or Base64 output format.
View hashes-MD5, SHA-1, SHA-256, and SHA-512 hashes are all generated simultaneously.

About Hash Generator

Hash Generator computes cryptographic hash values for text or files using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Hashes are one-way functions that produce a fixed-size output from any input.

SHA-256 and SHA-512 use the Web Crypto API for maximum security and performance. MD5 is provided for compatibility but is not recommended for security purposes.

All hashing happens in your browser. No data leaves your device.

FAQ

Related Tools

Base64 Encode / Decode

Encode text or files to Base64, or decode Base64 strings.

Password Generator

Generate strong, random passwords with customizable length and character types.