# Jump to Definition

Builder supports jumping to the definition of a symbol. It is a quick and easy way to navigate the source of your project.

If you’re using the default or Emacs-based keybindings, use `Alt+.` while the insertion mark is on the symbol name. If you’re using Vim-based keybindings, use the `gd` while the cursor is on the symbol name.

If you’re located at the declaration of a symbol (such as in a header file), you can jump to the implementation using this method. This requires that the `code-index` plugin is enabled.