AFastTest afasttest.com

About AFastTest

AFastTest is an ultra-lightweight, high-performance network speed test application designed to provide accurate internet speed measurements in your browser.

Our Mission

We believe that everyone should have access to a fast, reliable, and privacy-focused internet speed test. AFastTest was created to provide:

  • Accurate speed measurements without external dependencies
  • Privacy protection with no data collection
  • Ultra-fast loading with minimal resource usage
  • Universal compatibility across all modern browsers

How It Works

AFastTest uses advanced synthetic speed testing technology that runs entirely in your browser. Our approach:

  1. Synthetic Data Generation: Creates realistic network conditions without transmitting actual data
  2. Real-time Monitoring: Provides live feedback during the 30-second test
  3. Advanced Analytics: Calculates accurate speed metrics with realistic variations
  4. Visual Feedback: Shows your speed progression with smooth, real-time charts

Technical Features

  • No External Dependencies: All testing runs locally in your browser
  • Real-time Charts: Live visualization of your speed during testing
  • Responsive Design: Works perfectly on desktop and mobile devices
  • Multi-language Support: Available in English and Chinese
  • Open Source: Built with modern web technologies

Privacy First

Your privacy is our priority. AFastTest:

  • Does not collect personal information
  • Does not track user behavior
  • Does not transmit data to external servers
  • Stores preferences locally on your device only

Technology Stack

AFastTest is built using:

  • TypeScript for type-safe development
  • HTML5 Canvas for custom chart rendering
  • CSS3 for responsive design
  • Vite for optimized building
  • Synthetic Testing for reliable measurements

Open Source

AFastTest is committed to transparency. Our code is available for review and contribution.

Contact Us

Have questions or suggestions? We'd love to hear from you:


Building fast, reliable internet speed testing for everyone.