Valérian de Thézan de Gaussan 
I’ve always wanted to develop my own toolbox. I have never been truly satisfied with the product out there.
A free toolbox, without ads, no cookies, fully client-side, lightweight and no registration needed!
This toolbox is designed to be simple, efficient, and respectful of your privacy. It’s fully client-side, meaning all processing is done in your browser without the need for server-side interaction.
Features:
- Free: Totally free, forever.
- Lightweight: Optimized for speed and efficiency.
- No Ads or cookies: Enjoy an uninterrupted experience without tracking.
- Mobile friendly: The responsive interface accommodate both mobile and desktop users.
- Fully Client-Side: Your code and data stay on your machine, ensuring privacy and security.
- Versatile Tools: Includes a variety of tools useful for developers regardless of different languages and frameworks.
I have open-sourced it at https://github.com/vdtdg/dev-toolbox so that multiple contributors can participate in making it a complete toolset.
To start using the toolbox, Go Here. Meet you there!