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Type of site
Web Startup
Available inEnglish
HeadquartersSan Francisco, California
Created byAaron Iba, J.D. Zamfirescu and David Greenspan
LaunchedDecember 12, 2007
Current statusDiscontinued

AppJet was a website that allowed users to create web-based applications in a client web browser. AppJet was founded by three MIT graduates, two of whom were engineers at Google before starting AppJet.[1] They launched their initial public beta on December 12, 2007, allowing anyone to create a web app.

AppJet received funding from Y Combinator in the summer of 2007.[citation needed]

The project closed on July 1, 2009 to focus attention on the EtherPad.[2]

Appjet was acquired by Google on December 4, 2009, for an undisclosed amount.[3]

JGate is a free, cloud-based service, in beta, that can be used to run AppJet applications.[4]

Programming tutorial

On August 14, 2008, AppJet released a programming tutorial aimed at a target audience of "absolute beginners".[5]

The tutorial used the AppJet IDE to provide a programming sandbox for examples, allowing readers to experiment with sample code. This was one of the first online tutorials to embed an IDE, exposing a complete server-side web app framework inline with text.

Web software framework

"AppJet" also refers to the server-side JavaScript framework that powers AppJet applications. This is an example of a recent trend in web development, to run JavaScript on both the client and the server, allowing developers to code entire web apps in one language, instead of using a separate language for server-side and client-side scripting.

The virtual machine that powers AppJet apps is based on the Java Virtual Machine, using the Rhino Javascript implementation. Scala libraries are also used.[6]



Appjet is often updated with bug-fixes, improvements, and other features.[12] A major update to the site was a graphical change implemented on July 10, 2008.[13] This update also added the feature to "Comment" on users apps. Comments are messages about apps left at the URL

Another update occurred on May 2, 2008. This update allowed apps to be hosted at custom domains. [14]


  1. ^ About AppJet Archived December 14, 2007, at the Wayback Machine
  2. ^ Aaron Iba (1 June 2009). "Dear AppJet Community". AppJet Inc. Archived from the original on 2009-06-06.
  3. ^ Google Redefines Realtime Collaboration with Appjet Purchase
  4. ^ JGate Archived 2010-12-13 at the Wayback Machine provides free AppJet and CouchDB hosting along with a browser-based IDE
  5. ^ Hello World! AppJet opens browser-based JavaScript school
  6. ^ "EtherPad Blog: AppJet: The Platform behind EtherPad". Archived from the original on 2008-12-05. Retrieved 2008-11-21.
  7. ^ AppJet Dev Guide: Hosting Archived April 19, 2008, at the Wayback Machine
  8. ^ AppJet Dev Guide: Persistent Storage Archived January 15, 2009, at the Wayback Machine
  9. ^ AppJet Dev Guide: IDE Archived April 19, 2008, at the Wayback Machine
  10. ^ AppJet Dev Guide: Custom Domains Archived May 15, 2008, at the Wayback Machine
  11. ^[permanent dead link]
  12. ^ changelog Archived June 17, 2008, at the Wayback Machine
  13. ^ changelog Archived September 28, 2008, at the Wayback Machine
  14. ^ changelog Archived September 28, 2008, at the Wayback Machine