AWS Cloud9 is a code editor and development environment built with browser technology yet with the power of a desktop IDE. It's available both as an online service and as a locally hosted platform.
Codiad is an open source, web-based, cloud IDE and code editor with minimal footprint and requirementsDiscontinued
"Given its age and number of viable alternatives now available, Codiad is no longer under active maintenance by core contributors."https://github.com/Codiad/Codiad/commit/19c9223d70ca0eb164b6891b6e1350c75a62e8f2
Atheos is a web-based IDE framework with a small footprint and minimal requirements, built on top of Codiad by FluidByte and the Codiad Team.
Koding is a self-hosted development environment for teams to come together and code in the browser. Developers can work, collaborate, write and run apps without jumping through hoops and spending unnecessary money.Discontinued
Main GitHub repository archived, last commit to main branch in 2019, introductory video on their website has been privated.
ECCO stands for online code editor and compiler. It's a programming IDE which supports many languages and is accessed through the browser. In other words, isn't necessary that the user has previously installed a programming environment to start to codeDiscontinued
Last update was 2006: https://sourceforge.net/p/ecco/code/HEAD/tree/
Powerful, Collaborative Online/Offline web IDE
The IDE component is also available as an open source project on GitHub: https://github.com/FriendCode/codebox.Discontinued
Seems dead, upgrades are disabled and no updates for some time.Warning
Site is potentially unsafe per Google Chrome.