React Native Desktop - Build OS X desktop apps using React Native
Wondershare PDFelement - All-in-one PDF editor
Arbiter IDE - The offline-friendly, in-browser IDE for pure JS prototypes
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
CodeOnline - A remote and secure workspace powered by VSCode
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.