Browser Extensions for Developers
Boost your productivity with our free, secure, and lightweight Developer Tools.
JSON to Mermaid Visualizer
Convert raw JSON into visual ER Diagrams and Mind Maps instantly. Zero permissions.
JSON to Java Converter
Generate clean Java POJO classes from JSON instantly. Supports Jackson & Lombok.
Why Developers Trust ToolsHref Extensions?
In an era where browser extensions often ask for invasive permissions like “Read and change all your data on websites,” we take a different approach. ToolsHref is committed to the Privacy-First development philosophy.
🔒 Zero Permissions
Our tools require absolutely no special permissions to run. We don’t access your tabs, history, or cookies.
âš¡ Offline Processing
Logic runs locally in your browser. Your sensitive JSON data never leaves your machine.
🚀 Lightweight
Bloat-free code ensures your browser stays fast. We don’t run background processes when you aren’t using the tool.
Streamline Your Workflow
Switching contexts between your IDE, documentation, and online tools kills productivity. Our browser extensions bring the utilities directly to your workspace.
- For Backend Developers: Use the JSON to Java Converter to instantly generate DTOs and Entity classes from API responses without typing boilerplate code manually.
- For Data Analysts: Use the Mermaid Visualizer to understand complex, nested JSON datasets by turning them into clean ER Diagrams and Mind Maps instantly.
Frequently Asked Questions
Are these extensions really free?
Yes, all ToolsHref browser extensions are 100% free to use. We support the development through our main website tools.
Do you store my data?
No. We process all data client-side (in your browser). We do not have servers that store or analyze your input data.
How do I report a bug?
You can contact us directly via the support email listed on the Chrome Web Store listing page, or use the contact form on this website.