PXLTools

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes

How to use Hash Generator

  1. Enter text or select a file.
  2. Click Generate Hashes (or hashes appear automatically for files).
  3. Copy any hash value with one click.
  4. Use SHA-256 for security, MD5 for quick checksums.

What are hash functions?

A hash function takes any input and produces a fixed-length string of characters. The same input always produces the same hash, but even a tiny change in input produces a completely different hash. This makes hashes useful for verifying file integrity, storing passwords, and digital signatures.

SHA-256 is the industry standard for security applications. It is used in TLS certificates, blockchain, and password storage. MD5 and SHA-1 are considered broken for cryptographic use but remain useful for non-security checksums like verifying file downloads.

All hashing in this tool runs in your browser using the Web Crypto API (for SHA) and a pure JavaScript implementation (for MD5). Nothing is sent to any server.

Frequently Asked Questions

What hash algorithms are supported?
MD5 (128-bit), SHA-1 (160-bit), SHA-256 (256-bit), and SHA-512 (512-bit). SHA-256 is the most commonly used for security purposes today.
Is MD5 still safe to use?
MD5 is cryptographically broken and should not be used for security. It is still useful for checksums and non-security file integrity checks.
Are my files uploaded anywhere?
No. All hashing runs entirely in your browser using the Web Crypto API. Your data never leaves your device.
Can I hash large files?
Yes. Files are read in chunks, so even multi-gigabyte files can be hashed without running out of memory.