What hash algorithms are supported?

SHA-1, SHA-256, SHA-512, and MD5. SHA-256 is recommended for most use cases.

What is a hash used for?

Hashes verify data integrity, store passwords securely, and create unique identifiers. They produce a fixed-size output from any input.

Is hashing the same as encryption?

No. Hashing is one-way — you cannot reverse a hash to get the original data. Encryption is two-way and can be decrypted with a key.

Is my data sent to a server?

No. All hashing happens in your browser using the Web Crypto API. Your data never leaves your device.

Hash Generator

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

Input

SHA-1

Hash will appear here...

SHA-256

Hash will appear here...

SHA-512

Hash will appear here...

Frequently Asked Questions

What is a Hash Generator?

A hash generator takes an arbitrary piece of text and produces a fixed-length string of hexadecimal characters called a digest. Hash functions are one-way: given the output, it is computationally infeasible to reverse-engineer the original input. Common algorithms include MD5 (128-bit), SHA-1 (160-bit), SHA-256 (256-bit), and SHA-512 (512-bit). Hashes are foundational to modern software development and security, used for verifying file integrity, storing passwords securely, generating checksums, and signing digital certificates. Our free online hash generator leverages the browser's built-in Web Crypto API (crypto.subtle.digest) to compute hashes entirely on your device. Your input text is never sent to a server, making this tool safe for hashing passwords, API keys, tokens, and other sensitive data.

When to Use a Hash Generator

Developers, sysadmins, and security professionals use hash generators regularly. Here are the most common scenarios:

Verifying file integrity by comparing a computed SHA-256 hash against a published checksum

Generating password hashes for testing authentication flows during development

Creating content-based cache keys where the hash changes only when the underlying data changes

Computing HMAC or digest values to validate webhook signatures from services like GitHub or Stripe

Comparing MD5 or SHA-1 hashes of two strings to quickly check whether they are identical

Learning about hash algorithms and observing how small input changes produce completely different outputs (the avalanche effect)

How It Works

Type or paste your text into the input area, and the tool simultaneously computes digests for every supported algorithm (MD5, SHA-1, SHA-256, and SHA-512). Results update in real time as you type, so you can see the avalanche effect firsthand. The hashing is performed using the Web Crypto API, a secure, standards-based interface built into every modern browser. The computed digests are displayed in hexadecimal format and can be copied individually with a single click. All computation stays client-side with zero network requests, no data logging, and no account required. Open the page and start hashing instantly.