CodeMirror UI provides a CodeMirror-powered field, form element, and Views UI enhancements to help developers write and preview syntax-highlighted code directly within Drupal.
The Advanced File Destination module enhances file upload management in Drupal by allowing users to choose and create custom directories during file uploads.
CKE by default fills empty containers (DIV and P) by NON-BREAKABLE SPACE (NBSP) symbol. It helps to see a container in editor window and allows to put the cursor into the container.