Advanced File Integrity Tool
Pure frontend cryptographic hashing tool – No APIs, no backend, no data leaves your browser
File Hasher
Generate cryptographic checksums for any file using browser’s built-in Web Crypto API
Drag & drop files here
or click to browse
Max file size: 2GB (browser dependent)
SHA-256
SHA-512
SHA-384
SHA-1
Results & Verification
Generated hash values and integrity verification
No file processed yet. Upload a file and generate a hash to see results here.
How This Advanced Tool Works
This is a pure frontend application that demonstrates advanced browser capabilities:
Security Features
- All processing happens locally in your browser
- No files are uploaded to any server
- Uses Web Crypto API for cryptographic operations
- File reading uses FileReader API with chunk processing
Advanced Technologies Used
- HTML5 File API & Drag-and-Drop
- JavaScript Web Crypto API
- Async/Await for non-blocking operations
- Streaming file processing for large files
HTML5 File API
Web Crypto API
ES6+ JavaScript
Zero Backend
Pure Frontend
