|Developer(s)||GitHub (subsidiary of Microsoft)|
|Initial release||26 February 2014|
1.55.0 / 9 March 2021
1.56.0-beta0 / 9 March 2021
|Operating system||macOS 10.9 or later, Windows 7 and later, and Linux|
|Type||Source code editor|
Atom was developed by GitHub as a text editor. Facebook then developed the Nuclide and Atom IDE projects to turn Atom into an integrated development environment (IDE), but development stopped in December 2018.
Like most other configurable text editors, Atom enables users to install third-party packages and themes to customize the features and looks of the editor. Packages can be installed, managed and published via Atom's package manager apm. All types of packages, including but not limited to: Syntactic highlighting support for other languages than the default, debuggers, etc. can be installed via apm
Initially, extension packages for Atom and anything not part of Atom's core were released under an open-source license. On 6 May 2014, the rest of Atom, including the core application, its package manager, as well as its desktop framework Electron, were released as free and open-source software under the MIT License.
There was initially concern and discussion about two opt-out packages that report various data to external servers. However, those packages are now opt-in with a verbose dialog at the initial launch:
[...] we didn’t build Atom as a traditional web application. Instead, Atom is a specialized variant of Chromium designed to be a text editor rather than a web browser. Every Atom window is essentially a locally-rendered web page.
Edited: 2021-06-18 12:36:40