Speed Checker

An extension to measure your current internet speed. Check your connection with one click when sites are slow or videos won't play.

Check your internet speed instantly without leaving the page you are viewing! "Videos keep buffering", "Websites are loading slowly"... Have you ever felt this stress? With this extension, you can instantly measure your current internet connection speed (download and upload) with just one click. There is no need to visit a dedicated speed test site or open a new tab. The biggest feature is that you can check it quickly without getting in the way, while continuing your usual browsing or work. [Main Functions and Features] 🚀 Complete in Side Panel: Displayed on the right side of the browser, so it doesn't interrupt your work. ⚡ One-Click Measurement: Just click the icon. No complex settings are required. 📊 Easy-to-Read Meter: Displays current speed with intuitive graphs and numbers. Rating badges like "Fast" or "Slow" are automatically displayed. 🌍 Multi-language Support: Automatically switches to 15 languages including English, Japanese, and Chinese based on your browser settings. It is a simple, lightweight, and easy-to-use speed test tool for everyone. Please install it as a must-have tool for your browser. [Update] March 1, 2026: Conducted a regular vulnerability inspection and fixed 3 vulnerabilities and bugs.