Ace (editor)

Ace
DeveloperAjax.org
Initial releaseSeptember 25, 2010 (2010-09-25)
Stable release
1.43.5  / 2 December 2025 (2 December 2025)
Written inJavaScript
PlatformWeb
TypeSource code editor
LicenseSince 1.0.0: BSD-3-Clause
Until 0.2.0: Tri-license
Websiteace.c9.io 
Repository

Ace (from Ajax.org Cloud9 Editor) is a standalone code editor written in JavaScript. The goal is to create a web-based code editor that matches and extends the features, usability, and performance of existing native editors such as TextMate, Vim, or Eclipse. It can be easily embedded in any web page and JavaScript application. Ace is developed as the primary editor for Cloud9 IDE and as the successor of the Mozilla Skywriter project.