Computing tools on this site are small browser utilities that sit next to the science calculators. The HTML Executor runs HTML, CSS, and JavaScript from a local .html file or from the three editors.
- HTML Executor: open an .html file, split style/script, sandboxed preview
- Binary calculator: convert and compute across bases
- Hex color picker: HEX, RGB, and HSL
If you need to run HTML in the browser, use the HTML Executor (file import included). Binary and color conversion are on their own pages.
Web & numbers
- Binary Calculator & ConverterConvert and compute across binary, octal, decimal, and hexadecimal number systems.
- Hex Color Picker & ConverterPick colors and convert between HEX, RGB, and HSL for web workflows.
- HTML ExecutorRun HTML, CSS, and JavaScript in the browser. Open an .html file or type code — live sandboxed preview, no install.