Hash Generator

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text instantly. Uses the Web Crypto API for accurate, standards-compliant output. Copy any hash with one click.

Start typing to see MD5, SHA-1, SHA-256, and SHA-512 hashes

Type or paste any text and instantly see its MD5, SHA-1, SHA-256 and SHA-512 hashes. All hashing runs in your browser using the Web Crypto API — your data never touches a server. Copy any hash with a single click.

When to Use the Hash Generator

Use hash generation to verify data integrity, create checksums for file comparison, generate consistent identifiers from text, or check that your backend is producing the expected hash output during development.

Tips

  • SHA-256 is the standard choice for most applications — it balances security and length.
  • Hashes are deterministic: the same input always produces the same output. Use this to verify data has not been altered.
  • Never store plain-text passwords. Hash them with a purpose-built algorithm like bcrypt, not a raw SHA hash.
  • Even a single character change produces a completely different hash — this is called the avalanche effect.

Frequently Asked Questions

Which hash algorithms are supported? ▾

MD5, SHA-1, SHA-256 and SHA-512. SHA-256 and SHA-512 use the Web Crypto API (crypto.subtle.digest) for hardware-accelerated performance. MD5 uses a lightweight JavaScript implementation since the Web Crypto API does not support it.

Is MD5 still safe to use? ▾

MD5 is cryptographically broken — do not use it for passwords or security. It is still fine for checksums (verifying file integrity) and non-security hash tables where collision resistance is not critical.

Which algorithm should I choose? ▾

Use SHA-256 for general-purpose hashing. Use SHA-512 when you need a longer hash or slightly better performance on 64-bit systems. Avoid MD5 and SHA-1 for any security-sensitive application.

Does the hash leave my browser? ▾

No. All hashing is performed locally in your browser. Your input text is never sent to any server.

Can I hash a file? ▾

This tool hashes text input. For file hashing, read the file as text or use a command-line tool like sha256sum.

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