Documize - Enterprise-grade wiki and knowledge management platform

Fine Uploader - Javascript plugin tool to give your users a smooth experience when uploading files to your website.

HackMD - Fast and flexible, real-time collaborative markdown, inspired by Hackpad.

Uploadify - Uploadify is a jQuery plugin that allows users to easily add multiple file upload functionality to their website.

ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.

SequoiaView - SequoiaView is a featured rich application that comes with the visualization technique to provide you a single view of files and documents that are stored in your hard drive.