Embed images by CKEditor Embed add-on without uploading them on server (plugin uses dataURI directly in HTML).
Extremely useful especially for inserting icons.

Upload and insert multiple images to your page contents with CKEditor Image Gallery add-on.
Add-on can generate previews by configurable template and compatible with different image preview scripts like ShadowBox, LightBox, etc..

Upload new file to your server and insert a link into contents of your page by specified template with help of CKEditor Quick File Uploader add-on.

Upload image and insert a preview linked to original. This add-on is compatible with CKEditor and works with LightBox, ShadowBox and other popular preview scripts.

Quick Image Uploader is the most popular premium tool for CKEditor to upload files in a couple of clicks.

This module provides a Drag & Drop Upload element to Amazon S3.