I Built a 100% Browser-Based OCR That Never Uploads Your Documents — Here's How

📰 Dev.to · UCHIHAMADRA

Learn how to build a browser-based OCR that keeps documents secure by never uploading them, using techniques like Web Workers and WebGL

advanced Published 10 Apr 2026
Action Steps
  1. Build a web page with a file input element to select documents
  2. Use Web Workers to process the document in the browser without uploading it
  3. Apply OCR techniques using WebGL to extract text from the document
  4. Configure the OCR engine to recognize text accurately
  5. Test the browser-based OCR with various document types and formats
Who Needs to Know This

Developers and engineers working on document processing and security can benefit from this approach to protect sensitive user data

Key Insight

💡 Using Web Workers and WebGL, you can build an OCR that processes documents locally in the browser, keeping sensitive data secure

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🔒 Build a secure browser-based OCR that never uploads your docs! 📄💻

Key Takeaways

Learn how to build a browser-based OCR that keeps documents secure by never uploading them, using techniques like Web Workers and WebGL

Full Article

Your medical prescriptions, passports, and bank statements deserve better than being uploaded to...
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