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Y Combinator funded AppJet is an online programming tool for building simple web apps. Founded by former MIT students, AppJet intends to simplify the process of writing web applications. The applications are programmed on a web based text editor in the simple but powerful JavaScript programming language. JavaScript is used on both the server and client side. They've included several bundles of code libraries for databases and more importantly interfacing with the Facebook API. In order to efficiently host users' applications, AppJet has developed their own application virtualization system. The system allocates processor time to active applications and cuts off greedy ones after running an alloted number of compiled lines of code to prevent abuse. AppJet as a dev platform seems no longer to be active. There are some legacy downloads available, however.

Wufoo is a web application that helps anybody build amazing online forms. When you design a form with Wufoo, it automatically builds the database, backend and scripts needed to make collecting and understanding your data easy, fast and fun. No coding required! Founded in 2006, Wufoo was created by Chris Campbell, Kevin Hale and Ryan Campbell on the belief that forms were the starting point for building anything useful on the web. The problem they saw was that one of the most efficient and used interfaces for collecting data, wasn’t very efficient to create. So they decide to fix that by creating Wufoo! In 2011, Wufoo was acquired by SurveyMonkey, the leader in web-based survey solutions, to help complement their growing suite of services to offer amazing data collections tools to their customers.