Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes of any text instantly in your browser.
How to use this tool
- 1Paste or type your input above.
- 2The result updates instantly.
- 3Copy the output with one click.
Frequently asked questions
Are values from this hash generator (md5, sha-1, sha-256, sha-512) secure and random?+
Yes β they're generated locally in your browser, using the cryptographically secure Web Crypto API where appropriate. Nothing is logged or transmitted.
Is my data private?+
Yes. The tool runs entirely in your browser β nothing you paste or type is uploaded to a server.
Guides & deep dives
MD5 vs SHA-256: Which Hash Should You Use?
MD5 is broken for security but fine for checksums. SHA-256 is the modern default. Learn the difference, when each applies, and how to hash passwords safely.
Base64 Explained: What It Is and When to Use It
Learn what Base64 encoding is, why it adds 33% overhead, how data URIs work, the base64url variant, and exactly when to encode or decode β with worked examples.
JWTs Explained: Header, Payload, Signature and Security Pitfalls
Learn how JSON Web Tokens work β the three parts, signing vs encryption, the alg=none attack, cookie vs localStorage, and expiry claims β with worked examples.
What Makes a Password Strong in 2026
Learn what actually makes a password uncrackable in 2026: entropy math, why length beats complexity, passphrases, and how modern crackers work.