Pulsar

Overview

Pulsar began in 2022 as a community fork of Atom, GitHub’s Electron-based code editor, after Microsoft (which acquired GitHub in 2018) announced Atom’s end-of-life and archived the project in December 2022. A group of Atom contributors and users started Pulsar to keep the editor maintained, picking up Atom’s MIT-licensed codebase and continuing active development rather than letting it go unmaintained.

Because it’s a direct continuation of Atom’s code, Pulsar retains Atom’s interface, keybindings, and compatibility with the existing library of Atom packages, making it a straightforward migration for anyone who was still using Atom when it was discontinued. Development has since focused on modernizing the underlying Electron version, improving performance, and maintaining package compatibility going forward.

Key Features

• Atom package compatibility — Runs the existing ecosystem of community Atom packages and themes
• Familiar interface — Preserves Atom’s layout, keybindings, and configuration format
• Active maintenance — Regular releases addressing security updates and Electron version upgrades that Atom no longer received
• Built-in package manager — Browse and install packages directly from the editor
• Cross-platform — Native builds for Linux, Windows, and macOS

Use Cases

• Migrating from Atom — A direct continuation for users left without updates after Atom’s discontinuation
• Package-based customization — Building a tailored editing environment using the existing Atom package library
• Hackable, GUI-based editing — A GUI-first alternative for developers who found Atom’s customization model more approachable than terminal-based editors

Who It’s For

Pulsar is aimed primarily at former Atom users who want continued updates and security patches without switching to an unrelated editor. It also suits developers who prefer Atom’s GUI-based package and theme customization model over VS Code’s or a terminal-based editor’s workflow.