# Hash Generator

> Free online hash generator. Create MD5, SHA-1, SHA-256, SHA-512, SHA-3 and RIPEMD-160 checksums, HMAC signatures and verify hashes — computed locally in your browser, no signup.

Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3 and RIPEMD-160 hashes from any text instantly — plus HMAC mode with a secret key and a hash-verify checker, all computed locally.

- **Live tool:** https://www.toolnova.org/dev-tools/hash-generator
- **Category:** Developer Tools (https://www.toolnova.org/dev-tools)
- **Price:** Free
- **Requirements:** Runs in a modern web browser · No signup · No install

## What this tool does

- MD5, SHA-1, SHA-256, SHA-512, SHA-3, RIPEMD-160
- HMAC mode with a secret key
- Verify a hash against your input
- Instant hashing as you type, uppercase option
- One-click copy per algorithm
- Local — input never leaves the browser

## How to use Hash Generator

1. **Enter your text** — Type or paste the content to hash.
2. **Read the digests** — All six algorithms compute instantly.
3. **Toggle case** — Switch to uppercase hex if required.
4. **Copy** — Copy the digest you need with one click.

## Common use cases

- Verify a downloaded file's checksum
- Compare SHA-256 hashes for integrity
- Generate cache or ETag keys
- Create a fingerprint of a string

## About

### Every common hash, side by side

A hash function turns any input into a fixed-length fingerprint that changes completely if even one character changes. This tool computes six of the most-used algorithms at once — MD5, SHA-1, SHA-256, SHA-512, SHA-3 and RIPEMD-160 — so you can grab the exact digest a system expects. It's ideal for verifying file integrity, comparing checksums and generating cache keys.

### Fast, local and private

Hashes update instantly as you type, and each one has its own copy button. Everything is computed in your browser with the crypto-js library, so your input is never uploaded. Note that MD5 and SHA-1 are fine for checksums but are no longer considered secure for passwords — use a dedicated password hashing function for that.

## FAQ

### Which hash algorithms are supported?

Six: MD5, SHA-1, SHA-256, SHA-512, SHA-3 and RIPEMD-160. All are computed simultaneously from your input.

### Is my input sent anywhere?

No. Hashing runs entirely in your browser using crypto-js, so your text is never uploaded or logged.

### Can I use MD5 or SHA-1 for passwords?

No — MD5 and SHA-1 are fast and outdated for password storage. They're fine for checksums and integrity, but use a dedicated password hash like bcrypt or Argon2 for passwords.

### Why does one character change the whole hash?

Good hash functions have an 'avalanche effect' — any tiny change to the input flips about half the output bits, so the digest looks completely different.

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