Atom Is Dead: Switch to Pulsar in 5 Steps [2026]

GitHub pulled the plug on the Atom text editor in December 2022, and nearly four years later the original repository is still sitting archived and read only. If you kept a working Atom install around out of habit, or because your team’s workflow was built on a decade of Atom packages, October 2026 is a reasonable time to finally move off it. There is no security patching coming, no new package releases from the official project, and no path back to active development.

The sections below cover through migrating from the discontinued Atom text editor to Pulsar, the community run fork that kept Atom’s extension model, keybindings and package format alive. Along the way you will back up your configuration, reinstall your packages, restore syntax highlighting, and sanity check the move against two other serious options, Zed and Visual Studio Code. Expect to spend around 60 to 90 minutes end to end, depending on how many Atom packages you have accumulated.

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Why the Atom Code Editor Shutdown Still Matters in 2026

GitHub announced on June 8, 2022 that it would sunset Atom and archive every repository under the Atom organization on December 15, 2022. Since then, Atom has received zero official updates. The last stable release most sources point to is Atom 1.60.0, and that version is not getting security fixes, dependency bumps, or Electron updates. Running it today means running software that is, by GitHub’s own account, no longer maintained.

That matters more in 2026 than it did in 2023. Electron itself has moved on several major versions since Atom’s last release, which means an unmaintained Atom build is increasingly out of step with current Node.js, V8, and Chromium security baselines. Atom also depended on third party packages published to the apm registry, many of which have gone stale or been pulled by their maintainers. If you are still opening Atom to edit code, you are working with four year old tooling on top of infrastructure nobody is actively watching.

The good news is that Atom’s community did not let the project simply vanish. Pulsar picked up Atom’s codebase, its dot-atom configuration format, its ppm package manager lineage, and its Jasmine based test runner, then kept shipping. Pulsar is MIT licensed, runs on Electron, and is explicitly built to feel like Atom rather than replace it with something unfamiliar. For anyone who liked Atom’s hackability but wants active maintenance behind it, Pulsar is the direct successor worth testing first. We will also look at Zed and Visual Studio Code as secondary options for readers who are open to a bigger workflow change.

What Happened to Atom’s Creators, and Why Zed Exists

Part of what makes this migration decision interesting is that Atom’s shutdown did not happen in a vacuum. GitHub’s own stated reasoning in its June 2022 sunset announcement pointed to a shift in company focus toward cloud powered development through Codespaces and toward deeper investment in Microsoft’s own VS Code rather than maintaining two Electron based editors in parallel. That consolidation is also why VS Code, not a GitHub branded Atom successor, became the editor GitHub itself continued pushing forward.

One developer who originally built Atom, Nathan Sobo, went on to start Zed as an independent company, which explains why Zed’s design philosophy borrows some of Atom’s original ambitions around extensibility and hackability while rejecting Electron entirely in favor of a native Rust and GPU accelerated rendering stack. That history is useful context when deciding where to land: Pulsar preserves Atom’s exact packages and habits, while Zed represents what that same person’s building philosophy would look like if they started over today with a decade of hindsight about Electron’s performance ceiling.

Understanding that lineage also explains why there is no single “official” successor to Atom. Pulsar is the continuity option. Zed is the clean slate option built by alumni of the same project. VS Code is the option GitHub’s parent company was already steering developers toward well before Atom’s sunset was even announced. None of the three is wrong, they are just solving the migration from different angles.

Pulsar vs Zed vs VS Code: Which Atom Alternative Fits You

Before touching a terminal, it helps to know which direction you are migrating toward. Pulsar is the closest thing to a like for like replacement: same configuration philosophy, same package ecosystem, same general feel. Zed is a from scratch, Rust based editor built by part of the original Atom team, prioritizing raw speed and built in collaboration features over Atom era extensibility. VS Code is Microsoft’s actively developed editor, the most widely adopted of the three, with the largest extension marketplace and the most AI tooling investment, including the sandboxed agent host policies shipped in VS Code 1.142.

Editor	Current status (Oct 2026)	Architecture	Package compatibility with Atom	Best fit
Atom	Discontinued since December 2022, repository archived	Electron	Native (it is the original)	Historical reference only, not for daily use
Pulsar	Actively maintained community fork, newest stable release 1.132.1	Electron, MIT licensed	High, keeps Atom’s dot-atom config and ppm lineage	Atom users who want continuity with minimal relearning
Zed	Actively developed, preview channel reached 1.25.1 on October 20, 2026	Rust, GPUI	None, different extension model entirely	Developers prioritizing speed and built in collaboration over legacy packages
VS Code	Actively developed by Microsoft, shipping regular monthly releases	Electron	None, uses the VS Code extension API	Teams that want the largest extension and AI agent ecosystem

If your Atom setup is light, a handful of language packages and a theme, any of the three will feel like an upgrade. If you have years of custom keybindings, snippets, and niche packages, Pulsar will get you back to productive work the fastest because it is designed to recognize most of what you already have. This guide focuses the step by step migration on Pulsar, then shows how to spin up Zed and VS Code side by side so you can compare before committing.

Prerequisites and System Requirements for Migration

Gather these before you start so you are not hunting for files mid migration.

An existing Atom installation with a ~/.atom (or %USERPROFILE%\.atom on Windows) configuration folder you can still access.
Administrator or sudo rights on the machine you are migrating, since package managers and installers need them.
Windows, macOS, or a current Linux distribution, since Pulsar ships as an Electron based desktop application with similar baseline requirements to Atom before it.
At least 2 GB of free disk space for Pulsar plus your reinstalled packages.
Git installed and configured, since most developer workflows depend on it and you will want to confirm it still works inside your new editor.
Node.js and npm installed if any of your Atom packages compile native modules, which several popular ones do.
A code project you actually use day to day, so Step 7 gives you a realistic test rather than a toy example.
20 to 30 minutes of uninterrupted time for the core install and package migration, plus another 30 to 60 minutes if you plan to also trial Zed and VS Code.

One more thing worth deciding up front: do not uninstall Atom until the very last step. Keeping it on disk, even unused, gives you a fallback if something in your package list does not translate cleanly.

Step 1: Back Up Your Atom Configuration and Package List

Atom stores almost everything that makes your setup “yours” inside the .atom folder in your home directory: your config.cson settings file, keymap.cson for custom keybindings, snippets.cson, styles.less for UI tweaks, and the packages folder itself. Copy the whole thing somewhere safe before doing anything else.

# macOS or Linux
cp -r ~/.atom ~/atom-backup-2026
tar -czf ~/atom-backup-2026.tar.gz ~/atom-backup-2026

# Windows (PowerShell)
Copy-Item -Recurse "$env:USERPROFILE\.atom" "$env:USERPROFILE\atom-backup-2026"
Compress-Archive -Path "$env:USERPROFILE\atom-backup-2026" -DestinationPath "$env:USERPROFILE\atom-backup-2026.zip"

Next, generate a plain text list of every package you currently have installed. If Atom still launches on your machine, the built in package manager CLI, apm, can print this for you directly from a terminal.

apm list --installed --bare > atom-packages.txt
cat atom-packages.txt

The --bare flag strips extra formatting so the output is just package names and versions, one per line, which makes it easy to reinstall later with a loop. Keep this file next to your config backup. If apm is not on your PATH anymore, you can also just open the packages folder inside your .atom backup and read off the folder names, they correspond directly to package identifiers.

Step 2: Install Pulsar on Windows, macOS or Linux

Pulsar’s newest confirmed stable release is version 1.132.1, building on the 1.132.0 release from May 17, 2026, which added an integrated terminal. Pulsar also runs a rolling release channel between numbered versions, so active contributors can track newer Tree-sitter grammar fixes before the next stable tag lands. For a migration like this, stick with the stable channel.

# macOS with Homebrew
brew install --cask pulsar

# Windows with winget
winget install Pulsar-Edit.Pulsar

# Linux (Debian or Ubuntu based, using the official .deb package)
wget https://download.pulsar-edit.dev/?os=linux_deb -O pulsar.deb
sudo apt install ./pulsar.deb

If none of those package managers fit your setup, download the installer or archive directly from the Pulsar releases page for your platform, then run it the same way you would have installed Atom originally. Launch Pulsar once after installing to confirm it opens cleanly and generates its own fresh ~/.pulsar configuration folder, this is the folder you will be populating in the next two steps.

Step 3: Import Your Atom Keymaps, Snippets and Styles

Pulsar deliberately kept Atom’s configuration file format, so this step is closer to copying files than converting them. Close Pulsar, then copy your backed up keymap, snippets, and styles files into the new ~/.pulsar folder.

# macOS or Linux, after extracting your atom-backup archive
cp ~/atom-backup-2026/.atom/keymap.cson ~/.pulsar/keymap.cson
cp ~/atom-backup-2026/.atom/snippets.cson ~/.pulsar/snippets.cson
cp ~/atom-backup-2026/.atom/styles.less ~/.pulsar/styles.less
cp ~/atom-backup-2026/.atom/config.cson ~/.pulsar/config.cson

Restart Pulsar and open its settings view to confirm your custom keybindings registered. Check a handful of shortcuts you use constantly, things like multi cursor selection or your preferred comment toggle, before moving on. If a binding does not fire, open keymap.cson inside Pulsar’s own config editor and verify the selector syntax matches what Pulsar’s current UI elements expect, since a few Atom era CSS selectors were renamed during the fork’s cleanup work.

Step 4: Reinstall Packages With Pulsar’s Package Manager

Pulsar’s package manager, ppm, is a direct descendant of apm and reads the same package registry format, which is why most Atom packages install into Pulsar without modification. Use the package list you generated in Step 1 to batch reinstall everything at once rather than clicking through the settings UI one package at a time.

# macOS or Linux
while read -r pkg; do
  name=$(echo "$pkg" | cut -d'@' -f1)
  ppm install "$name"
done < atom-packages.txt

# Windows (PowerShell)
Get-Content atom-packages.txt | ForEach-Object {
  $name = $_.Split('@')[0]
  ppm install $name
}

Watch the terminal output as this runs. Packages that depend on native Node modules will recompile during install, which is normal and can take a few minutes for larger packages like language servers or linters. Any package that fails outright is worth checking individually, since a small number of older Atom packages have not been updated since before the 2022 sunset and may be genuinely abandoned rather than incompatible.

Step 5: Reconnect Git, GitHub and SSH Credentials

Atom shipped with built in Git and GitHub integration, and Pulsar carried that forward as a core feature rather than an optional package. Open a project folder in Pulsar and check the status bar and the Git tab in the right dock. If your credentials do not carry over automatically, Pulsar reads the same global Git configuration your system already has, so this is usually a confirmation step rather than a setup step.

# Confirm your existing Git identity is visible to Pulsar's integration
git config --global user.name
git config --global user.email

# If you use SSH for GitHub, confirm the agent is running and the key is loaded
ssh-add -l
ssh -T [email protected]

If you authenticate to GitHub with a personal access token instead of SSH, make sure that token is stored in your system's credential manager (Keychain on macOS, Credential Manager on Windows, or a credential helper on Linux) rather than inside any Atom specific configuration file, since Pulsar will not inherit a token that was only ever stored in an Atom package's local settings.

Step 6: Restore Syntax Highlighting, Autocomplete and Language Servers

Pulsar 1.132.1 shipped meaningful updates to its Tree-sitter grammar handling along with improvements to the autocomplete-css and autocomplete-plus packages, so highlighting and completion for most mainstream languages should work immediately after installing the matching grammar package through ppm. The same release also added JSON with comments support through a dedicated .jsonc grammar, plus an option to allow comments inside regular .json files, which is useful if your project configs rely on that.

# Example: restoring language support for a typical JS/TS + Python stack
ppm install language-javascript
ppm install language-typescript
ppm install language-python
ppm install atom-ide-ui
ppm install ide-typescript
ppm install linter-eslint

If you relied on Atom IDE packages for language server integration, confirm the equivalent Pulsar packages are active in the settings view rather than assuming the install alone enables them. Some IDE style packages need you to explicitly point them at your project's language server binary path the first time you open a file of that type. For right to left languages, Pulsar 1.132.1 also improved editing support for Arabic, Hebrew and Farsi text, which is worth checking if any of your projects include localized content.

Step 7: Test a Real Project End to End

Do not call the migration done until you have opened an actual project and run it through a normal workflow: open files, edit, save, run your build or test command, and commit a small change. This catches the kind of configuration gaps that a package by package check will miss.

Open your real project folder in Pulsar, not a throwaway test file.
Edit a file in each language your project uses and confirm highlighting and autocomplete both fire.
Run your project's build or test command from Pulsar's integrated terminal, the same feature added in version 1.132.0.
Make a small, reversible edit and commit it through Pulsar's Git integration to confirm the full loop works.
Close and reopen the project to confirm Pulsar remembers your open tabs and panel layout, the way Atom did.

If something breaks here, it is almost always one of three things: a missing language package, a native module that failed to recompile during Step 4, or a keybinding conflict between two packages you reinstalled. All three are addressed directly in the troubleshooting section further down.

Step 8: Benchmark Startup Time and Memory Use Against Atom

One of the most common complaints about Atom in its later years was slow startup and heavy memory use, especially with a large package list. It is worth actually measuring whether Pulsar improved on that for your specific setup rather than assuming it did.

# macOS or Linux: rough startup timing using the shell's built in timer
time pulsar ~/your-project

# Check memory use of the running process once it is open
ps aux | grep -i pulsar | awk '{print $6/1024 " MB", $11}'

Run the same timing command against your old Atom install if you still have it around, using identical conditions, same project, same number of open tabs, cold start after a reboot. Write both numbers down. This is also a good moment to count how many packages actually survived the migration versus how many you decided to drop, since a leaner package list is frequently the bigger factor in startup speed than the editor itself.

Step 9: Evaluate Zed and VS Code as Secondary Editors

Even after a successful Pulsar migration, it is worth spending a short amount of time with the two other serious contenders, since your needs may have shifted since your Atom era setup was built. Zed's preview channel reached version 1.25.1 on October 20, 2026, according to the editor's own release notes, and that build added syntax highlighting for SVG, MathML, and raw tagged templates, along with CSS highlighting for template literals inside JavaScript and TypeScript. The preceding preview release, 1.25.0 from October 14, 2026, added automatic code unfolding when navigating between definitions, double click application of inlay hint edits, context compaction for AI agents working in long sessions, and support for newer Gemini 4 Argon and Amazon Bedrock models. Zed's stable channel moved more conservatively, with version 1.23.2 adding table previews for JSONL and NDJSON files on October 7, 2026, ahead of 1.23.3 on October 12.

# macOS or Linux, Zed's own install script
curl -f https://zed.dev/install.sh | sh

# Windows, via winget
winget install Zed.Zed

Zed is a complete rewrite, not a fork, built in Rust with its own GPUI rendering framework, so none of your Atom packages carry over. What you get instead is noticeably faster rendering on large files and built in multiplayer collaboration. You can read Zed's own changelog directly on its preview release page, and third party trackers like Releasebot's Zed update log summarize the cadence if you want a lighter weight view of what has shipped recently.

VS Code remains the default choice for teams that want the largest extension marketplace and the deepest AI agent tooling, including the sandboxing and agent host policy controls introduced in VS Code 1.142. If your team already standardized on VS Code for other projects, consolidating onto it instead of Pulsar may reduce overall tooling sprawl even though it means rebuilding your package setup from scratch using VS Code's own extension format. For a structured side by side on where VS Code currently stands against two of its biggest rivals, see this breakdown of Zed vs VS Code vs JetBrains Air.

Step 10: Clean Up and Retire Atom Safely

Once you have used Pulsar, Zed, or VS Code for your actual daily work for at least a few days without hitting a blocker, it is time to retire Atom. Do not rush this step. Keep your atom-backup-2026 archive from Step 1 somewhere durable, cloud storage or an external drive, even after uninstalling. Configuration files are small and there is no reason to delete your only record of a setup you spent years building.

# macOS
rm -rf /Applications/Atom.app
rm -rf ~/.atom

# Windows (uninstall through Settings, then remove leftover config)
Remove-Item -Recurse -Force "$env:USERPROFILE\.atom"

# Linux (Debian/Ubuntu based)
sudo apt remove atom
rm -rf ~/.atom

If you are on a shared or managed machine, check with whoever handles your organization's software inventory before removing Atom, in case other tooling on the system still references its install path. It is also worth checking whether any build scripts, CI configuration, or onboarding documentation anywhere in your organization still references Atom by name, since those references will quietly go stale once the editor is gone from new hires' machines.

Who Should Skip Pulsar and Go Straight to Zed or VS Code

Not every Atom user should default to Pulsar just because it is the path of least resistance. If your team has already standardized tooling around VS Code for other languages or other projects, migrating your last holdout Atom users onto Pulsar just adds a third editor to support instead of consolidating onto one. In that case, the extra setup time of rebuilding your package list in VS Code's extension format usually pays for itself quickly in reduced support overhead.

Zed makes the most sense for developers whose actual complaint about Atom was never the package ecosystem, it was speed. If you kept Atom lean, with only a theme and one or two language packages, and your real frustration was scroll lag on large files or slow startup, Pulsar's Electron foundation means you will still be running on the same architecture that caused those complaints in the first place. Zed's Rust based rendering is a more direct fix for that specific pain point, at the cost of starting your package and keybinding setup over from nothing.

Common Pitfalls When Migrating Off Atom

Most migration headaches trace back to one of these mistakes. Watch for them before they cost you time.

Skipping the package inventory step. Trying to remember which packages you had installed from memory almost always misses two or three, usually small utility packages you forgot you were relying on.
Assuming every Atom package has a Pulsar equivalent. A small share of Atom packages have not been touched since before the 2022 sunset. If a package install fails outright, check its last update date before assuming the problem is on your end.
Not testing native module packages separately. Packages that compile native Node code, certain linters and some Git tooling among them, need a clean Node and npm environment to rebuild correctly, and a mismatched Node version is a frequent silent failure.
Deleting the old Atom config before confirming the new setup works. Always keep the backup archive from Step 1 until you have actually used your new editor for real work.
Mixing up Atom and Pulsar configuration file names. Pulsar expects its own folder structure under ~/.pulsar, copying files into the wrong location silently fails rather than erroring loudly.
Ignoring keybinding conflicts between reinstalled packages. Two packages that worked fine together in an older Atom version can conflict after being reinstalled fresh, since package defaults sometimes change between versions.
Treating Zed as a drop in Atom replacement. Because Zed is a ground up rewrite rather than a fork, expecting your Atom packages or keymap to transfer over will lead to disappointment. Budget time to rebuild your setup natively in Zed if you choose that path.

Troubleshooting Guide for Pulsar Migration Issues

Here are the issues most likely to come up, and the fastest way through each one. Most of these trace back to the same root cause: Pulsar inherited Atom's architecture closely enough that old habits mostly work, but "mostly" is not "always," and the gaps tend to show up in exactly the packages that had the most custom behavior layered on top of Atom's defaults.

Symptom	Likely cause	Fix
ppm install fails with a native build error	Node or npm version mismatch for a package with native modules	Install the Node version the package expects, then rerun ppm install for that package only
Keybindings from Atom do not fire in Pulsar	Selector syntax in keymap.cson references a UI element renamed during the fork	Open Pulsar's keybinding resolver in settings to see which selector is actually matching, then update the binding
Syntax highlighting missing for a language	The matching Tree-sitter grammar package was not reinstalled	Search Pulsar's package manager for the language- prefixed package and install it directly
Git panel shows no repository	Pulsar opened a parent folder without a .git directory, or Git itself is not on PATH	Open the project's actual Git root folder, and confirm the git --version command works from a plain terminal
Startup is slower than expected	Carried over too many unused packages from the old Atom setup	Disable packages you are not actively using from Pulsar's settings rather than reinstalling everything
Autocomplete suggestions are empty or generic	Language server package installed but not pointed at the project's binary or config	Check the language server package's settings for an explicit path setting and confirm it matches your project
A specific package will not install at all	The package has not been updated since before Atom's 2022 sunset and is incompatible with current Pulsar internals	Search for an actively maintained alternative package rather than forcing the old one to work
Theme or UI styling looks broken	styles.less references class names from an older Atom UI version	Comment out custom style overrides one section at a time to isolate which rule is stale, then update or remove it
Pulsar will not launch after install on Linux	Missing a shared library dependency that the Electron runtime expects	Run Pulsar from a terminal to see the actual error output, then install the missing library package it reports

Advanced Tips for Power Users

Once the basic migration is stable, a few extra moves make the new setup feel less like a compromise and more like an upgrade.

Audit your package list before reinstalling everything. A migration is a natural point to drop packages you installed years ago and stopped using, which compounds the startup and memory gains from Step 8.
Use Pulsar's integrated terminal, added in version 1.132.0, instead of reinstalling a separate terminal package you may have relied on in Atom, since the native implementation integrates more cleanly with the editor's window management.
If you maintain a dotfiles repository, add your ~/.pulsar config files to it the same way you likely tracked ~/.atom, so your next machine setup is a clone and copy rather than a full repeat of this guide.
Enable the experimental core.promptOnConflict setting that shipped in Pulsar 1.132.1, which warns you before saving over a file that changed on disk after you opened it, a useful safeguard if you work across multiple machines or with build tools that regenerate files.
If you work with JSON configuration files that need comments, take advantage of Pulsar's new .jsonc grammar support rather than stripping comments to keep files valid, or enable the setting that allows comments inside standard .json files directly.
Track Pulsar's rolling release builds in a separate test install if you want early access to upcoming Tree-sitter and language server fixes, while keeping your main daily driver on the stable channel.
Document your final package list somewhere outside the editor itself, a plain markdown file in your dotfiles works fine, so the next person on your team who migrates off Atom is not rediscovering the same compatibility issues you just solved.
If your team is migrating multiple developers at once, have one person run through this entire guide first and write down which packages failed to install, then share that list before everyone else starts, so the group is not independently hitting the same abandoned package problem five separate times.

Building a Complete Pulsar Project Setup

To pull everything in this guide into one working reference, here is what a complete, migrated Pulsar environment looks like for a typical JavaScript and Python project, assembled from the steps above.

# 1. Confirm Pulsar is installed and launches
pulsar --version

# 2. Restore configuration from your Atom backup
cp ~/atom-backup-2026/.atom/keymap.cson ~/.pulsar/keymap.cson
cp ~/atom-backup-2026/.atom/snippets.cson ~/.pulsar/snippets.cson
cp ~/atom-backup-2026/.atom/styles.less ~/.pulsar/styles.less
cp ~/atom-backup-2026/.atom/config.cson ~/.pulsar/config.cson

# 3. Reinstall your core package set
ppm install language-javascript language-typescript language-python
ppm install atom-ide-ui ide-typescript linter-eslint
ppm install git-plus

# 4. Verify Git integration
git config --global user.name
git config --global user.email
ssh -T [email protected]

# 5. Open your real project and run its build
cd ~/projects/your-app
pulsar .
npm install && npm test

# 6. Measure startup time for your records
time pulsar ~/projects/your-app

Save this sequence, or your own variant of it, in your personal notes or dotfiles repository. The next time you set up a new machine, you will be reinstalling from a known good checklist instead of rebuilding your editor configuration from scratch the way this migration required the first time around. For more coverage of developer tooling and software news as this editor market keeps shifting, keep an eye on what ships next across Pulsar, Zed and VS Code.

If you are also standardizing your team's broader desktop app tooling while you are at it, the same Electron versus native tradeoffs that shaped Atom, Pulsar and Zed show up elsewhere too, including in how teams choose between Tauri and Electron for their own internal tools, or how they evaluate the growing field of AI integrated code editors now that most serious options ship agent features by default. Windows specific setups can also check this walkthrough on configuring a code editor for Windows 11 for additional OS level tuning beyond what is covered here. Developers who track Pulsar's own release cadence can browse its rolling release history on GitHub directly.

Frequently Asked Questions

Is the Atom text editor still safe to use in 2026?
No. GitHub discontinued Atom in December 2022 and its repository has since been archived. There is no official security patching, so running it today means running software with no maintained update path.

Is Pulsar an official GitHub project?
No. Pulsar is a community maintained fork of Atom, not an official GitHub product or successor. It is developed independently under the pulsar-edit organization and distributed under the MIT license.

Will all of my Atom packages work in Pulsar?
Most will, since Pulsar kept Atom's package format and the ppm package manager is a direct descendant of apm. A small number of older packages that have not been updated since before the 2022 sunset may fail to install, in which case look for an actively maintained alternative.

Is Pulsar free to use?
Yes. Pulsar is open source and distributed under the MIT license, with no confirmed paid tier or subscription plan as of October 2026.

How is Pulsar different from Zed?
Pulsar is a fork of Atom's original Electron based codebase, built to preserve package and configuration compatibility. Zed is a complete rewrite in Rust using its own GPUI rendering framework, so it does not support Atom packages at all, but it generally renders faster on large files and includes built in multiplayer collaboration.

Can I run Pulsar and Atom side by side during the migration?
Yes, and it is the recommended approach in this guide. Keep Atom installed until you have confirmed your project builds, Git integration, and daily workflow all work correctly in Pulsar, then remove Atom in the final step.

What happens to my Atom themes and keybindings when I migrate?
Your keymap, snippets, and style files use the same configuration format in Pulsar, so copying them into the ~/.pulsar folder restores most customizations directly. A small number of selectors that reference UI elements renamed during the fork may need manual updating.

Does Pulsar support AI coding assistants the way VS Code and Zed do?
Pulsar's core focus has been restoring Atom feature parity and modernizing its underlying architecture rather than building out AI agent tooling. If AI assisted coding is a priority, VS Code and Zed currently have more active investment in that area, including Zed's support for newer models like Gemini 4 Argon introduced in its October 2026 preview releases.

Do I need to migrate all at once, or can I do it gradually?
You can migrate gradually. Since this guide recommends keeping Atom installed until the final step, you can test Pulsar on one project at a time, confirm your package list and workflow hold up, and only retire Atom once you are confident the new setup covers everything you relied on.

What should I do if a critical Atom package has no Pulsar equivalent?
First confirm the package is actually unmaintained rather than simply failing to install due to a Node version mismatch, since that is the more common cause. If it genuinely has not been updated since before Atom's 2022 sunset, search Pulsar's package registry for a newer package that covers the same functionality, or consider whether that specific missing feature is enough on its own to push you toward VS Code's larger extension marketplace instead.

Atom Editor to Pulsar: 12 Steps, 65 Min [2026]