The latest articles on DEV Community by RavikiranReddy Balemla (@ravikiranreddy_b). https://dev.to/ravikiranreddy_b 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%2F4040276%2F096dc870-c0c8-4da1-bfdd-ca2474ab5b11.jpg https://dev.to/ravikiranreddy_b en RavikiranReddy Balemla Wed, 22 Jul 2026 14:00:00 +0000 https://dev.to/ravikiranreddy_b/i-built-a-free-privacy-first-developer-toolkit-no-data-leaves-your-browser-3pg4 https://dev.to/ravikiranreddy_b/i-built-a-free-privacy-first-developer-toolkit-no-data-leaves-your-browser-3pg4 <p>As developers, we use online tools every day.</p> <ul> <li>JSON formatters </li> <li>JWT decoders</li> <li>Base64 encoders</li> <li>Hash generators</li> <li>URL encoders</li> <li>Diff tools</li> <li>And many more.</li> </ul> <p>But there's one question we don't always ask:</p> <blockquote> <p><strong>Where does the data we paste into these tools go?</strong></p> </blockquote> <p>Think about the data we work with every day:</p> <ul> <li>API responses</li> <li>Configuration files</li> <li>Application logs</li> <li>JWTs and tokens</li> <li>Internal URLs</li> <li>Database records</li> <li>Source code</li> </ul> <p>Sometimes, we paste this data into online tools just to perform a simple operation.</p> <p>I wanted a different approach.</p> <p>So I built <strong>LocalOnly.dev</strong>.</p> <h2> What is LocalOnly.dev? </h2> <p><a href="https://localonly.dev/?utm_source=dev.to">LocalOnly.dev</a> is a collection of free developer tools built with a <strong>privacy-first approach</strong>.</p> <p>The idea is simple:</p> <blockquote> <p><strong>If a task can be done directly in your browser, why send your data to a server?</strong></p> </blockquote> <p><a href="https://localonly.dev/?utm_source=dev.to">LocalOnly.dev</a> focuses on tools that can process data locally in your browser whenever possible.</p> <p>No account required for the core tools.</p> <p>No unnecessary backend dependency.</p> <p>Just open a tool, do your work, and move on.</p> <h2> What can you do? </h2> <p><a href="https://localonly.dev/?utm_source=dev.to">LocalOnly.dev</a> includes tools for:</p> <ul> <li>🧩 JSON formatting and validation</li> <li>🔍 JSON comparison</li> <li>🔐 Security and hash utilities</li> <li>🔄 Encoding and decoding</li> <li>🌐 URL utilities</li> <li>📝 Text transformation</li> <li>🧑‍💻 Developer productivitye</li> <li>And more tools are coming</li> </ul> <p>The goal isn't to build another collection of random utilities.</p> <p>It's to build a <strong>privacy-first toolbox that developers can actually use every day</strong>.</p> <h2> Why does this matter? </h2> <p>Local processing doesn't make every workflow automatically secure, and developers should always understand what a tool does with their data.</p> <p>But when a task doesn't require a server, I believe we should have the option to keep our data on our own device.</p> <p>That's the idea behind <a href="https://localonly.dev/?utm_source=dev.to">LocalOnly.dev</a></p> <blockquote> <p><strong>Your data. Your browser. Your control.</strong></p> </blockquote> <p>I'm building LocalOnly.dev in public and would love your feedback.</p> <p><strong>What developer tool do you use every week that you wish had a more privacy-friendly alternative?</strong></p> <p>Try it out and let me know what I should build next:</p> <p>👉 <strong><a href="https://localonly.dev/?utm_source=dev.to">https://localonly.dev/</a></strong></p> <p>Built by a developer, for developers. 🚀</p> webdev productivity security tools