The latest articles on DEV Community by TrendingDays (@trendingdays). https://dev.to/trendingdays https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3983992%2F70392e62-4fdc-4037-9a30-0d13c111f8de.png https://dev.to/trendingdays en TrendingDays Sun, 14 Jun 2026 14:23:51 +0000 https://dev.to/trendingdays/i-built-a-100-private-client-side-suite-of-web-utility-tools-no-data-leaves-your-browser-24e3 https://dev.to/trendingdays/i-built-a-100-private-client-side-suite-of-web-utility-tools-no-data-leaves-your-browser-24e3 <p>Hey DEV community! 👋</p> <p>As a developer, I got tired of using clunky, slow, ad-choked web calculators that constantly refresh the page or track your inputs on a backend server. </p> <p>So, I decided to build <strong><a href="https://trendingdays.com/" rel="noopener noreferrer">TrendingDays</a></strong> — a lightweight, lightning-fast suite of pure frontend utility and calculation tools. </p> <h3> 🔒 100% Local &amp; Client-Side </h3> <p>Everything runs directly inside your browser via raw JavaScript. No databases, no user logins required, and absolutely <strong>zero user data leaves your machine</strong>. It's built to be blazing fast on mobile layout viewports.</p> <h3> 🛠️ The Core Tool Suite Includes: </h3> <ul> <li> <strong><a href="https://trendingdays.com/age-calculator/" rel="noopener noreferrer">Age &amp; Time Calculator</a></strong> - Calculate your exact age down to the day and week with perfect local privacy.</li> <li> <strong><a href="https://trendingdays.com/unit-converter/" rel="noopener noreferrer">Universal Unit Converter</a></strong> - Swift conversions between Metric and Imperial systems instantly.</li> <li>Plus an entire lineup of specific text utilities, developer shortcuts, and athletic computation trackers.</li> </ul> <p>I just finished optimizing the platform's schema and mobile interface structure today. I'd love for the community to check it out, run a few calculations, and drop any brutal feedback or feature requests below!</p> <p>Check it out live here: <strong><a href="https://trendingdays.com/" rel="noopener noreferrer">TrendingDays Utilities</a></strong></p> webdev productivity showdev javascript