Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text using your browser's native Web Crypto API. Your input never leaves your device.
Frequently Asked Questions
What is a cryptographic hash?
A cryptographic hash function takes any input and produces a fixed-length string of characters called a digest. The same input always produces the same output, but even a tiny change produces a completely different hash. The process is one-way: you cannot reverse-engineer the original input from the hash alone. This makes hashes useful for verifying data integrity and storing passwords securely.
What is the difference between SHA-256 and SHA-512?
Both are part of the SHA-2 family. SHA-256 produces a 256-bit (64 hex character) digest and is the most widely deployed — it powers Bitcoin, TLS certificates, and code signing. SHA-512 produces a 512-bit (128 hex character) digest and is harder to brute-force due to its longer output. On 64-bit processors SHA-512 can actually run faster than SHA-256. For most web applications, SHA-256 is the standard choice.
What are hash functions used for in software?
Hash functions serve several practical purposes: verifying that a downloaded file hasn't been corrupted or tampered with, storing passwords securely (using slow hashes like bcrypt in production), generating unique content-based identifiers, creating digital signatures, and building efficient data structures like hash maps. This tool uses the browser's native Web Crypto API, so your text never leaves your device.