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
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