Hash Generator

Generate SHA-256, SHA-384, SHA-512 hashes.

Data is never sent to the server. Everything runs locally in your browser. Safe for sensitive information.

About this tool

This tool generates SHA-256/384/512 hashes in one click. Three features: 1) Supports three hash algorithms, 2) All processing in browser—no data sent to server, 3) Useful for password hashing, file integrity, API signature verification.

When designing password hashing or verifying the Signature spec of an external API, you often want a test hash — 'what would this string produce under SHA-256?' It's for those quick checks before writing code. Enter text and the main hash values are output in real time.

Tool interface

Auto-computes on input

SHA-256
SHA-384
SHA-512

Usage

  1. Enter text in the input field
  2. SHA-256, SHA-384, SHA-512 hashes are generated automatically
  3. Copy generated hash for password, integrity check, or signature verification

When to use

Verifying password hash design, file checksum comparison, API signature verification.

Examples

password123 → SHA-256: 6ca13d52..., file hash for tampering detection.

FAQ

What is SHA-256?

Secure Hash Algorithm 256. One-way function producing 256-bit (64 hex char) hash. Same input → same hash.

Hash vs encryption?

Encryption is reversible. Hash is one-way. Use hash for passwords, encryption for secrecy.

Why hash passwords?

Plain text is risky if leaked. Hash is irreversible; verify by hashing input and comparing. Prefer bcrypt/Argon2 for passwords.

SHA-256 vs SHA-512?

Different output length: 256 vs 512 bits. Both secure; SHA-512 slightly stronger, longer output.

How to use the hash generator tool?

Enter text and SHA-256, SHA-384, and SHA-512 hashes are generated. Data is never sent to a server.

How to check a file's hash?

Enter the file's content as text or use a dedicated tool. This tool is for text input.

Does hashing send my data?

No. Everything runs in your browser. Sensitive data like passwords can be hashed safely.

What is SHA-384?

A middle ground between SHA-256 and SHA-512 with a 384-bit output. Select it here to generate.

What is a hash collision?

When different inputs produce the same hash. Extremely rare with SHA-256; practically negligible.

How to use hashes for API signatures?

Hash the request content and combine it with a secret key to sign. Generate the hash with this tool.

Is Hash Generator free?

Free to use, no sign-up required.

Is data sent to a server?

Input is processed locally in your browser—nothing is sent to our servers.

Supported browsers?

Tested on recent Chrome, Edge, Firefox, and Safari.

Offline use?

Core features work offline after the first load.

vs CLI or desktop apps?

Hash Generator is an install-free online alternative to CLI or desktop apps.

When to use it?

Use it when: Verifying password hash design, file checksum comparison, API signature verification.

Usage example?

Example: password123 → SHA-256: 6ca13d52..., file hash for tampering detection.

Main features?

SHA-256/384/512 support, Browser-only processing, Password and integrity check

How is this different from similar tools?

Hash Generator runs in the browser with no install—ideal for quick checks before heavier CLI or IDE workflows.

Search keywords

sha256 generator, sha512 hash, sha384 hash, hash generator online, password hash, sha256 online

Basic workflow

  1. Enter text in the input field
  2. SHA-256, SHA-384, SHA-512 hashes are generated automatically
  3. Copy generated hash for password, integrity check, or signature verification

Practical use cases

  • Verifying password hash design, file checksum comparison, API signature verification.
  • This tool generates SHA-256/384/512 hashes in one click. Three features: 1) Supports three hash algorithms, 2) All processing in browser—no data sent to server, 3) Useful for password hashing, file integrity, API signature verification.
  • SHA-256/384/512 support
  • Browser-only processing

Privacy & data handling

Input is processed locally in your browser—nothing is sent to our servers.

Things to watch out for

  • Treat Hash Generator as a quick check — re-verify critical values in your editor or CI before shipping.
  • This tool runs locally: closing the tab clears unsaved input. Copy results you need to keep.
  • Very large pastes can freeze a tab briefly — wait for the result before closing the tab.

Related learning content

Related tools

Tool set

Dev & Security Set