Related Tools
What is SHA3-256 Generator?
A Hash Generator is a cryptographic tool that converts any input text or data into a fixed-size string of characters, known as a hash or digest. This process is one-way, meaning the original data cannot be reconstructed from the hash, making it ideal for verifying data integrity, storing passwords securely, and creating digital signatures. Our tool supports a wide range of algorithms including the industry-standard SHA-256, the legacy MD5 (for non-security use), SHA-512 for higher security, and others like SHA-1, SHA-384, and RIPEMD-160. Unlike server-side tools that require you to upload your data, this generator runs 100% in your browser using the Web Crypto API. This guarantees that your sensitive information, passwords, or confidential documents never leave your device, providing maximum privacy and security. Whether you are a security professional verifying file checksums, a developer testing authentication systems, or a student learning about cryptography, this tool offers a fast, secure, and offline-capable solution.
Input Formats
- Any text string
- Passwords
- File content (pasted as text)
- Unicode characters
Output Results
- Hexadecimal hash string
- Fixed length output (e.g., 64 chars for SHA-256)
- Deterministic result (same input = same output)
Key Features
Who is this for?
For Security Professionals
Verify data integrity and check file fingerprints.
For Developers
Test password hashing and generate unique identifiers.
For Students
Understand how cryptographic hash functions work.
How to Use
Type or paste your text into the input field.
Select the hashing algorithm (e.g., SHA-256).
The hash will appear instantly in the output field.
Click the copy button to use the hash.
Code Examples
JavaScript (Web Crypto API)
async function sha256(message) {
const msgBuffer = new TextEncoder().encode(message);
const hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer);
const hashArray = Array.from(new Uint8Array(hashBuffer));
return hashArray.map(b => b.toString(16).padStart(2, '0')).join('');
} Python (hashlib)
import hashlib
text = "Hello World"
hash_object = hashlib.sha256(text.encode())
print(hash_object.hexdigest())