What is NetToolKit?
NetToolKit is a free online toolkit that gathers together the small utilities people need every day: download time calculators, image compressors, format converters and more. The whole point is to make these tasks quick, accurate and respectful of your data.
What we believe
- Tools should be free. No paywalls, no premium tiers for basic functionality.
- Tools should be fast. Pages should load instantly and calculations should happen in milliseconds.
- Tools should respect your privacy. Wherever technically possible, files are processed locally in your browser and never uploaded to a server.
- Tools should be honest. Real-world speeds are real-world speeds. We do not overstate the accuracy of our calculators and we clearly call out where results are theoretical.
How the site is built
NetToolKit is a static web application built with modern web technologies. The codebase is intentionally lightweight: there are no heavy frontend frameworks, no client-side trackers, and no third-party scripts that are not strictly necessary for the tools to work.
Image and file tools run entirely in your browser using standard web APIs (HTML5 Canvas, the File API, Web Workers where helpful). Calculators and converters are pure JavaScript with no network calls.
Adding new tools
The site is built around a small tool registry. Adding a new tool is a matter of writing the calculator or converter component and adding its metadata (name, description, category, SEO fields) to a single configuration file. Pages, navigation, search and related tool suggestions pick up new entries automatically.
Get in touch
We are always looking for new tools to add. If there is a tool you would find useful, or if you spot a bug, please reach out via our contact page (coming soon) or open an issue on our public repository.