The latest articles on DEV Community by Pranay Mokal (@pranaysmokal). https://dev.to/pranaysmokal 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%2F3946411%2F4fd0b6ad-b4db-4446-a08a-8ba70d3d7db9.jpg https://dev.to/pranaysmokal en Pranay Mokal Wed, 27 May 2026 13:27:52 +0000 https://dev.to/pranaysmokal/i-built-freedevutils-60-free-in-browser-developer-tools-using-github-copilot-an-google-gemini-4je7 https://dev.to/pranaysmokal/i-built-freedevutils-60-free-in-browser-developer-tools-using-github-copilot-an-google-gemini-4je7 <p>Hey Dev Community 👋</p> <p>I'm excited to finally share <strong>FreeDevUtils</strong> — a big collection of <strong>60+ completely free developer tools</strong> that run <strong>entirely in your browser</strong>.</p> <h3> Why I Built This </h3> <p>I got tired of:</p> <ul> <li>Jumping between 10 different websites</li> <li>Dealing with ads and trackers</li> <li>Tools that require signups or send data to servers</li> </ul> <p>So I decided to create <strong>one single toolbox for developer community</strong> with all the utilities we use in daily life .</p> <h3> ✨ Key Highlights </h3> <p><strong>🔥 Standout Tools</strong></p> <ul> <li> <strong>Restify</strong> — Full Postman-like API testing tool (headers, params, body, collections, curl export)</li> <li> <strong>UML Class Diagram Builder</strong>, <strong>Flowchart Designer</strong>, <strong>Architecture Diagram Builder</strong> </li> <li> <strong>Log Parser &amp; Analyzer</strong> — Auto-detect and analyze application logs</li> <li> <strong>AI Prompt Builder</strong> — Craft better prompts for ChatGPT, Claude, Gemini, Cursor etc.</li> <li><strong>Docker Compose Visualizer</strong></li> <li> <strong>Subnet Calculator</strong> (IPv4 &amp; IPv6)</li> <li> <strong>HAR Analyzer</strong>, <strong>Swagger/OpenAPI Viewer</strong>, <strong>Postman Collection Viewer</strong> </li> </ul> <p><strong>Media &amp; File Tools</strong></p> <ul> <li>Image Compression &amp; Resizer (50-80% size reduction)</li> <li>Images to PDF, GIF Animator, Icon Generator</li> <li>QR Code Generator + Scanner, Barcode Generator</li> <li>Voice &amp; Video Recorder</li> <li>Zip/Unzip files client-side</li> <li>Screenshot Annotator</li> </ul> <p><strong>Data &amp; Conversion Tools</strong></p> <ul> <li>JSON, YAML, XML, CSV converters &amp; beautifiers</li> <li>CSV ↔ JSON, CSV/Excel → SQL</li> <li>Base64, URL, HTML encode/decode</li> <li>File Comparison tool</li> </ul> <p><strong>Other Useful Tools</strong></p> <ul> <li>Code Playground (HTML/CSS/JS with live preview)</li> <li>Regex Tester, Cron Expression Builder</li> <li>JWT Decoder, SSL Certificate Checker</li> <li>Faker &amp; Random Data Generator</li> <li>Password Generator + Strength Tester</li> <li>Timestamp converters, Text Statistics, Unicode Inspector, and many more...</li> </ul> <h3> Try It Here </h3> <p>👉 <strong><a href="https://freedevutils.github.io" rel="noopener noreferrer">https://freedevutils.github.io</a></strong></p> <p>All tools are <strong>client-side</strong> — nothing is uploaded to any server.</p> <h3> Tech Stack </h3> <ul> <li>Built with vanilla JavaScript + modern web APIs</li> <li>Fully responsive</li> <li>Open source (GitHub link below)</li> </ul> <h3> What's Next? </h3> <p>I'm planning to keep adding more tools based on community feedback if they follow projects vision.</p> <p>Would love to hear from you:</p> <ul> <li>Which tool did you find most useful?</li> <li>What tool should I add next?</li> <li>Any bugs or suggestions?</li> </ul> <p>Drop your feedback in the comments 👇</p> <p><strong>Try FreeDevUtils</strong>: <a href="https://freedevutils.github.io" rel="noopener noreferrer">https://freedevutils.github.io</a></p> devtool webdev productivity