If you are looking for a tool to edit physics bodies for 2D or 3D game engines (like Cocos2d-x, Unity, or Corona SDK), the industry standard is by CodeAndWeb.
If you have already downloaded a file named Physics Editor.rar from an unofficial source, follow these safety steps: Download Physics Editor rar
Most physics professionals use LaTeX for document preparation. Highly recommended free editors include TeXstudio or Overleaf (online). If you are looking for a tool to
It allows you to create collision shapes (polygons, circles) for your game sprites and export them into various engine-compatible formats. or Corona SDK)