Online Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of text or files. Secure local processing.

Text & Data Converter

15 powerful converters: URL, Base64, JSON, HTML, Hash, JWT, Case, UUID, Timestamp, Hex, Binary, URL Params, Text Stats, Website Screenshot

Input

About Online Hash Generator

Hash functions produce fixed-length fingerprints from any input — useful for data integrity verification, password storage patterns, and generating deterministic identifiers. The Hash Generator computes MD5, SHA-1, SHA-256, SHA-512, and more in-browser instantly.

Algorithm Guide

MD5: Legacy checksums only — not secure for passwords.
SHA-1: Git commit IDs — deprecated for security use.
SHA-256: Modern integrity checks, HMAC, JWT signing.
SHA-512: Maximum output length for high-security contexts.

What Hashes Are Good For

✅ File integrity — verify downloads haven't been tampered.
✅ Cache busting — unique hash per file version.
✅ Deduplication — detect duplicate content by hash comparison.

Never Hash Passwords Directly

Raw hash functions are too fast for password storage. Use slow adaptive functions (bcrypt, scrypt, Argon2) with unique salts per user instead.

Frequently Asked Questions

Which hash algorithm should I use?

SHA-256 is the modern standard for integrity checks and HMAC signing. MD5 and SHA-1 are legacy and should not be used for security purposes.

Can I reverse a hash?

No. Hashes are one-way functions. You can compare hashes but cannot recover the original input mathematically.

What is hash collision?

When two different inputs produce the same hash output. MD5 and SHA-1 have known collision vulnerabilities — another reason to prefer SHA-256+.

Related url Tools

Extract Links from URL Website Screenshot Tool Download Files from URL YouTube Downloader Online

Need Help?

Check out our technical guides to learn more about how browser-side processing works.

Read Glossary

Explore More Tool Categories

Loading Shrinkify...