The latest articles on DEV Community by Mumtaz Sanjar (@mumtaz_sanjar). https://dev.to/mumtaz_sanjar https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4104525%2F7aa4a9f5-d620-4cab-9f94-af6808c98ecb.jpeg https://dev.to/mumtaz_sanjar en Mumtaz Sanjar Tue, 01 Sep 2026 15:31:16 +0000 https://dev.to/mumtaz_sanjar/how-i-built-a-free-online-typing-speed-test-with-vanilla-javascript-dlh https://dev.to/mumtaz_sanjar/how-i-built-a-free-online-typing-speed-test-with-vanilla-javascript-dlh <p><strong>How I Built a Free Online Typing Speed Test with Vanilla JavaScript</strong></p> <p>I recently built TypeRacer Pro, a free online typing speed test focused on speed, accuracy, and a simple user experience.</p> <p>🔗 Live Project: <a href="https://typeracer-pro-web.vercel.app/" rel="noopener noreferrer">https://typeracer-pro-web.vercel.app/</a></p> <p>What I Wanted to Build</p> <p>The goal was to create a typing test that works directly in the browser without requiring users to create an account.</p> <p>The application supports:</p> <ul> <li>30, 60, and 120-second typing tests</li> <li>WPM calculation</li> <li>Accuracy tracking</li> <li>Easy, Medium, and Hard difficulty levels</li> <li>Real-time character highlighting</li> <li>Typing streaks</li> <li>Performance ratings</li> <li>Dark and light themes</li> <li>Local test history</li> <li>Responsive desktop and mobile UI</li> </ul> <p>Technology Used</p> <p>The project is intentionally lightweight:</p> <p>HTML5<br> CSS3<br> Vanilla JavaScript<br> LocalStorage<br> Google Fonts<br> Vercel</p> <p>No frontend framework or external JavaScript library is required.</p> <p>WPM and Accuracy</p> <p>One of the important parts of the project was keeping the typing calculations consistent while providing real-time feedback.</p> <p>The interface tracks typed characters, calculates WPM and accuracy, and updates the statistics while the user is typing.</p> <p>Test history is stored locally in the browser rather than being sent to a backend.</p> <p>_ Responsive Design_</p> <p>The application was designed for both desktop and mobile users.</p> <p>The typing interface, navigation, controls, tables, and content pages adapt to smaller screens without changing the core typing experience.</p> <p>What I Learned</p> <p>Building a typing application looks simple at first, but keeping keyboard input, timers, statistics, UI updates, and user feedback synchronized requires careful JavaScript logic.</p> <p>I also focused on keeping the project lightweight because responsiveness is particularly important for a typing application.</p> <p>Try It</p> <p>If you want to test it:</p> <p>👉 <a href="https://typeracer-pro-web.vercel.app/" rel="noopener noreferrer">https://typeracer-pro-web.vercel.app/</a></p> <p>I'd be interested to hear what developers would improve or add to a browser-based typing test.</p> frontend javascript showdev webdev