A collection of online tools for a quick work on browser for research/development.
• Python
• https://www.tutorialspoint.com/execute_python_online.php
• Json
• http://jsonprettyprint.com/
• LaTeX
• https://latexbase.com/
• Geographic Coordinates Conversion : UTM and Lat/Lon Conversion
• http://www.rcn.montana.edu/resources/converter.aspx
• https://www.latlong.net/lat-long-utm.html
• 3D Rotation Converter : 3x3 Rotation Matrix/Quaternion Conversion
• https://www.andre-gaschler.com/rotationconverter/