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Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files. Verify file integrity with checksums. All processing happens locally in your browser.

Enter Text
📁
Drop a file here or click to browse
Maximum file size: 10MB
Select Algorithm
Algorithm Information
SHA-256: Industry standard, 256-bit output. Recommended for most use cases including file integrity verification and digital signatures.
Generated Hash
Copied!
Hash will appear here
Verify Hash
🛈 Privacy Note: All hashing is performed locally in your browser using the Web Crypto API. Your text and files never leave your device. Maximum file size is 10MB to ensure browser performance.

About Hash Generator

Generate cryptographic hashes from text or files using industry-standard algorithms. Hash functions create a unique, fixed-length fingerprint of your data that can be used to verify integrity and authenticity. All processing is done client-side for maximum privacy.

How to Use

  1. Choose between Text Input or File Upload tab.
  2. Enter your text or drag-and-drop a file (max 10MB).
  3. Select your preferred hash algorithm (SHA-256 recommended).
  4. Click Generate Hash to create the hash.
  5. Use the Copy button to copy the result.
  6. Paste a hash in the Verify Hash field to check if it matches.

Frequently Asked Questions

What is a hash function?

A hash function is a mathematical algorithm that converts input data of any size into a fixed-length string of characters. The same input always produces the same output (hash), but even a tiny change in input creates a completely different hash. Hashes are one-way functions - you cannot reverse them to get the original data.

Which hash algorithm should I use?

SHA-256 is recommended for most applications. It provides a good balance of security and performance. SHA-512 offers even higher security with a longer output. MD5 and SHA-1 are considered cryptographically broken for security purposes but may still be used for basic file integrity checks.

Is my data secure when using this tool?

Yes. All hash calculations are performed entirely within your browser using the Web Crypto API. No data is uploaded to our servers or transmitted over the internet. You can safely hash sensitive files and confidential text.

Why would I verify a hash?

Hash verification is commonly used to confirm that a file hasn't been corrupted or tampered with during download. Many software downloads provide an official hash that you can compare against. If the hashes match, the file is authentic and intact.

Can I hash files larger than 10MB?

The 10MB limit is in place to ensure smooth performance in your browser. For larger files, consider using dedicated command-line tools like OpenSSL, sha256sum, or PowerShell's Get-FileHash cmdlet.