Online Hash Generator – String to Hash Converter

Need to quickly generate a hash from a string? Whether you’re verifying file integrity, securing data, or just experimenting with cryptographic tools, this simple hash generator makes it easy.

Just paste your data, select a hashing algorithm (like SHA-256 or SHA-512), and click the button to get your hash instantly—right in your browser. No uploads, no tracking, no fuss.

Your hash will appear here...

What is a Hash?

A hash is a one-way encryption method that transforms any input (like text) into a fixed-length string of characters. Commonly used for:

  • Storing passwords securely

  • Checking file integrity (like verifying downloads)

  • Digital signatures and blockchain systems

The hash output is unique to the input—change just one character and the entire hash changes. It’s not reversible, which means you can’t decode a hash back to the original input.

Which Algorithm Should I Use?

  • SHA-1 – Older, faster, but less secure. Use only for non-critical tasks.

  • SHA-256 – A solid modern choice for most hashing needs.

  • SHA-384 / SHA-512 – Longer outputs, more secure, often used in high-security contexts.

Unless you’re sure you need something specific, SHA-256 is generally the best option.

Fast, Private, and Free

This tool runs 100% in your browser. Nothing is sent to our servers—your data stays completely private. You can safely use this tool for quick testing, learning, or secure one-off hashing.

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