About ConvertFast
Our Mission
ConvertFast was built with a simple mission: make image conversion private, fast, and free for everyone.
We believe that converting your images shouldn't require uploading them to a server, creating an account, or paying subscription fees. Your images are yours, and they should stay on your device.
Why ConvertFast?
The Problem We're Solving
Most online image converters require you to upload your images to their servers. This raises several concerns:
- Privacy: Your personal photos are stored on someone else's server
- Speed: Upload and download times can be slow, especially for large files
- Limits: Many services have file size limits or require paid subscriptions
- Trust: You don't know what happens to your images after processing
Our Solution
ConvertFast processes everything in your browser using cutting-edge web technologies. Your images never leave your device, conversions happen instantly, and there are no limits or costs.
How It Works
ConvertFast leverages modern browser capabilities to process images entirely on your device:
1. Browser File API
When you select images, they're loaded into your browser's memory using the File API. No upload, no server involved.
2. WebAssembly Processing
For complex formats like HEIC, we use WebAssembly for fast, native-speed decoding directly in your browser.
3. Canvas API Conversion
The HTML5 Canvas API handles image rendering and format conversion, producing high-quality results.
4. Instant Download
Converted images are generated as downloadable files and saved directly to your device.
Key Features
🔒 100% Private
Your images never leave your device. All processing happens locally in your browser.
⚡ Lightning Fast
No upload or download delays. Conversions happen instantly on your device.
♾️ Unlimited Use
No file size limits, no daily limits, no subscription required. Completely free.
📦 Batch Processing
Convert multiple images at once with drag-and-drop support.
🎨 Quality Preservation
Adjustable quality settings to balance file size and image quality.
🌙 Dark Mode
Easy on the eyes with automatic dark mode support.
Technology Stack
ConvertFast is built with modern web technologies:
- Nuxt.js 3: Modern Vue framework for optimal performance and SEO
- TypeScript: Type-safe code for reliability and maintainability
- WebAssembly: Near-native performance for complex image processing (HEIC decoding)
- HTML5 Canvas API: High-performance image rendering and conversion
- Tailwind CSS: Beautiful, responsive design with dark mode support
- Vercel: Fast, reliable hosting with edge network delivery
Our Team
ConvertFast is built by developers who care deeply about user privacy and web performance. We're passionate about creating tools that respect users while delivering exceptional experiences.