I Built FreeDevUtils — 60+ Free In-Browser Developer Tools using github copilot an google gemini pro for developer community

A developer built FreeDevUtils, a collection of 60+ free in-browser developer tools that run entirely client-side, using GitHub Copilot and Google Gemini Pro. The toolbox includes a Postman-like API testing tool, UML diagram builder, log parser, and various media and data conversion utilities, all without ads, trackers, or server uploads. The open-source project is available at freedevutils.github.io.

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