Hash generator
Paste text and generate common hash digests in the browser for checksums, fixtures, signatures, and quick verification tasks.
About this tool
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text instantly. Browser-based checksums for fixtures, signatures, and verification — no signup.
Paste text and generate common hash digests in the browser for checksums, fixtures, signatures, and quick verification tasks.
- 1
Type or paste the text you want to hash into the input field.
- 2
Select your algorithm — SHA-256 for security use cases, MD5 for checksums, SHA-512 for maximum strength.
- 3
The hash is computed instantly as you type.
- 4
Click Copy to copy the hash hex string to your clipboard.
Generate checksums for text fixtures, payloads, or copied content.
Compare MD5 and SHA hashes when testing integrations or signature flows.
Create deterministic digests in the browser without sending data elsewhere.
MD5 hash
hello5d41402abc4b2a76b9719d911017c592SHA-256 hash
hello2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824SHA-512 hash
hello9b71d224bd62f3785d96d46ad3ea3d73319bfbc2890caadae2dff72519673ca72323c3d99ba5c11d7c7acc6e14b8c5da0c4663475c2e5c3adef46f73bcdec043These answers explain common hash md5/sha tasks, expected input formats, and edge cases so both visitors and search engines can understand what this tool does.
What is the difference between MD5, SHA-1, SHA-256, and SHA-512?
They are different hashing algorithms with different output lengths and security properties. SHA-256 and SHA-512 are generally preferred over MD5 and SHA-1 for modern security-sensitive use cases.
Can I use this hash generator for passwords?
Not directly. Password storage should use dedicated password hashing algorithms like bcrypt, scrypt, or Argon2 rather than plain MD5 or SHA hashes.
Why do two similar inputs produce completely different hashes?
Cryptographic hashes are designed so even tiny input changes produce very different outputs. That behavior helps detect changes and tampering.
Does this tool hash files?
This version hashes text input pasted into the page. It is useful for strings, payloads, tokens, and copied fixtures rather than file uploads.
In Node.js use the built-in crypto module. In browsers use the Web Crypto API (SubtleCrypto), which is async.
const crypto = require("crypto");
// SHA-256
const sha256 = crypto.createHash("sha256")
.update("Hello, world!")
.digest("hex");
console.log(sha256);
// 315f5bdb76d078c43b8ac0064e4a0164612b1fce77c869345bfc94c75894edd3
// SHA-512
const sha512 = crypto.createHash("sha512")
.update("Hello, world!")
.digest("hex");
// MD5 (checksums only — not for security)
const md5 = crypto.createHash("md5")
.update("Hello, world!")
.digest("hex");
console.log(md5); // 6cd3556deb0da54bca060b4c39479839
// HMAC-SHA256 (for message authentication)
const hmac = crypto.createHmac("sha256", "secret-key")
.update("Hello, world!")
.digest("hex");