Alternatives to Pulsar
Community-maintained continuation of the Atom text editor. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Pulsar
Community-maintained continuation of the Atom text editor.
Replacements
Listings that take over the same core job as Pulsar.
Visual Studio Code
Microsoft's code editor, free to use but shipped under a Microsoft licence rather than an open one.
Visual Studio Code is also Electron-based but has extensions for nearly every language and monthly releases, while being closed source with telemetry.
VSCodium
Visual Studio Code built from the same source without Microsoft’s branding, telemetry or licence.
VSCodium is an MIT-licensed VS Code build without telemetry, with a larger extension ecosystem through Open VSX than Pulsar's registry.
Zed
A Rust editor from the people who built Atom, written for speed and for two people editing one file.
Zed comes from the people who built Atom, written in Rust with GPU rendering for speed, but with a smaller extension ecosystem.
Sublime Text
A fast native editor for code and prose, paid for but with an evaluation that never stops working.
Sublime Text is a native editor with far lower memory use than Electron, but it is closed source and paid.
Lite XL
Edit text and code in a lightweight Lua-based editor.
Lite XL is a lightweight MIT-licensed editor extensible through Lua plugins and themes, avoiding Electron's memory use and startup time.
Lapce
A code editor written in Rust with GPU rendering, built-in LSP support, optional modal editing and remote development.
Lapce is a native Rust editor with built-in LSP and remote development, faster than Electron editors but still pre-1.0.
Kate
KDE's text editor: syntax highlighting for over 400 languages, split views, multi-cursor editing and an embedded terminal.
Kate is a native KDE editor with multi-cursor, split views and an embedded terminal, but depends on KDE Frameworks and lacks a macOS build.
Geany
A small, fast IDE built on GTK that starts instantly and does not depend on a heavy desktop environment.
Geany is a small GTK IDE that starts instantly with very little memory, though it lacks language server support and looks dated.
Also worth comparing
These listings name Pulsar as their own alternative, so the relationship runs both ways.
GNU Emacs
An editor that is really a Lisp environment, extensible to the point where people run their email, calendar and shell inside it.
Pulsar continues Atom as a hackable Electron editor with its own package registry, and it inherits Atom's memory use and startup time.
jEdit
A mature, plugin-driven programmer's text editor written in Java for many operating systems.
Pulsar continues the hackable Atom editor with its own package registry, but it is Electron-based with Atom's memory use and startup time.
Phoenix Code
An open-source code editor for web development that continues the Brackets project, with live preview.
Pulsar continues the Atom editor with its own package registry, keeping a hackable desktop editor, but it is Electron-based and has a smaller maintainer team.
Theia IDE
An open-source IDE for desktop and browser from the Eclipse Foundation that runs VS Code extensions.
Pulsar is an open-source continuation of Atom with its own package registry, Electron-based and desktop only.
Similar software
Related functionality, not a direct replacement.
Cursor
An AI code editor built on VS Code, with coding agents that plan and carry out tasks.
code-server
Use a VS Code-based workspace through your browser.
Notepad++
The fast Windows text and source code editor that replaced Notepad for a generation of users.
TextMate
An open-source macOS text editor known for bundles, snippets, multiple carets and scoped settings.
CudaText
A fast, cross-platform open-source code editor written in Object Pascal and extensible with Python.