AppsFactory

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files.

Output Format

Generated Hashes

MD5
—
SHA-1
—
SHA-256
—
SHA-512
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Hash Generator - MD5, SHA-1, SHA-256, SHA-512

Generate cryptographic hashes from text or files with our free online Hash Generator. Support for MD5, SHA-1, SHA-256, and SHA-512 makes it easy to verify file integrity, compare checksums, or hash passwords during development. All computation runs locally in your browser for maximum privacy.

Features

  • Multiple hash algorithms including MD5, SHA-1, SHA-256, and SHA-512
  • Text and file hashing so you can hash a string or drag-and-drop any file
  • Hash comparison tool to check if two hashes match, useful for verifying downloads
  • Simultaneous output displaying all supported hash formats at once for a given input
  • Uppercase and lowercase toggle for hash output formatting
  • One-click copy for each generated hash value
  • Incremental file hashing that processes large files in chunks without freezing your browser

How to Use

  1. Select whether you want to hash text or a file using the input toggle.
  2. Type or paste your text, or drag a file into the upload area.
  3. View the generated hashes for all supported algorithms displayed below the input.
  4. Use the comparison field to paste an expected hash and verify it matches.
  5. Click the copy icon next to any hash to place it on your clipboard.

Use Cases

  • File integrity verification: Confirm that a downloaded file matches the publisher's provided checksum to detect corruption or tampering.
  • Password hashing during development: Quickly generate hashed values for test accounts or seed data in local databases.
  • Data deduplication: Hash file contents to identify duplicates across large collections without comparing raw bytes.
  • Digital forensics: Generate and compare checksums to verify evidence files have not been altered.

FAQ

Which hash algorithm should I use?

For general file integrity checks, SHA-256 is the recommended choice. It offers a strong balance of security and performance. MD5 and SHA-1 are considered cryptographically weak and should be avoided for security-sensitive applications, though they remain useful for non-security checksums.

Is my data sent to a server?

No. All hashing is performed entirely in your browser using the Web Crypto API and JavaScript. Your text and files never leave your machine.

Can I hash very large files?

Yes. The tool processes files in chunks using streaming, so even files that are several gigabytes in size can be hashed without running out of memory or causing your browser to become unresponsive.