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FileConvert Pro

Professional in-browser file conversion tool with OCR capabilities. Supports DOCX, PDF, PPTX, and image formats with client-side batch processing and complete privacy.

Live Demo GitHub
FileConvert Pro screenshot

Overview

FileConvert Pro is a secure, browser-based document conversion utility featuring optical character recognition (OCR) that allows users to convert documents without uploading sensitive data to cloud servers.

The Problem

Many online converters require uploading sensitive documents to third-party servers, posing serious privacy and security risks.

The Solution

Built a client-side conversion engine using Web Workers and in-browser OCR parsing, guaranteeing 100% data privacy with zero server uploads.

Challenges

  • Handling heavy file parsing in the browser without freezing the UI thread
  • Supporting drag-and-drop batch conversions with progress tracking and ZIP packaging

Key Learnings

  • Web Workers are essential for heavy client-side computation in React
  • Transparent client-side processing builds immense user trust

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