Is Arc Browser Dead? What Happens Dec 22 and What Next

By Kshetez Vinayak, founder of SupaSidebar. Last updated November 6, 2026.

Until December 22, Arc keeps working as usual and gets basic updates. After that it does not open. For Arc users who built their workflow around the sidebar, Spaces, and Cmd+T command bar, the practical question is no longer "is Arc dead" - it is "what replaces the workflow, and how do I move it before the deadline."

This guide covers the shutdown dates, what Dia, Zen and SupaSidebar each keep from your Arc setup, how to save your data, a sourced timeline, our own count of 102 Reddit replies on how Arc users took the news, and what Arc users told us by email.

Looking for something specific?

• Comparing every Arc alternative? → Arc Browser alternative guide (the pillar comparison)
• Want the seven best Mac picks ranked? → Arc Browser Alternative: 7 Mac Apps to Replace Arc
• Already here for the main topic? → Keep reading.

Key Takeaways

• Arc stops working on macOS and Windows on December 22, 2026, and every Arc account is deactivated that day
• The Browser Company announced the date on October 22, 2026 and closed new Arc sign-ups the same day
• Arc had been in maintenance mode since May 27, 2025 - security and Chromium updates only, no new features
• Atlassian acquired The Browser Company for $610 million; deal closed October 21, 2025
• In our count of 102 top replies across 11 r/ArcBrowser threads, 49% of Arc users who took a side felt let down by The Browser Company or Dia, and 4% were happy moving to Dia
• The three routes off Arc are Dia (official successor), Zen (closest independent browser), or your current browser plus SupaSidebar
• SupaSidebar recreates Arc's sidebar and Spaces as a standalone Mac app that works with Safari, Chrome, Firefox, Zen, Vivaldi, Brave, Helium, and Dia, and imports your Arc Spaces

What to Switch To Before December 22

Arc users have three realistic routes. The right one depends on whether you want a new browser at all.

Whichever route you pick, import before December 22. Arc's own Export Data option (Arc > Settings > Advanced) saves your tabs as a list of links, not a bookmarks file another browser can import, so choose your destination first and import from there.

For the full feature-by-feature comparison of every Arc alternative, see the Arc Browser alternative guide - the canonical comparison - or the ranked 7 Mac apps to replace Arc. If you've already decided to leave and want the migration playbook, see Switching from Arc Browser.

Arc Browser Status in 2026 (Updated November 2026)

Here is where Arc stands, checked against The Browser Company's Arc Sunset FAQ on November 4, 2026.

For 17 months, maintenance mode meant Arc kept the lights on without investing in the product. Chromium security and engine fixes still shipped, anything a macOS update broke got patched, and nothing else got built. On October 22, 2026, The Browser Company set an end date, citing the rising cost of keeping a browser secure.

Software kept alive without a team usually ends this way. It stays supported until support stops being worth the cost, then it gets an end date. Arc got its date.

Is Arc Browser Dying?

Arc is past dying. It has a date. On December 22, 2026, Arc stops working on macOS and Windows, sign-in ends, and every account is deactivated. Personal data tied to those accounts is deleted within 30 days, and after December 22 The Browser Company says it can no longer retrieve user data for data requests.

Until then, Arc still launches and browses. But the old advice, migrate on your own terms before something breaks, now has a deadline. Anything that lives only in Arc's sidebar (Spaces, folders, pinned tabs) needs to move before December 22.

Is Arc Still Supported in 2026?

Only until December 22, 2026, and only in the narrow sense. Since May 2025 Arc has received Chromium engine updates, security patches and critical bug fixes, and nothing else. No new features, no UI work, no roadmap.

The shutdown notice adds three dates.

• October 22, 2026. New Arc accounts can no longer be created. The latest Arc version adds an Export Data option and a smoother import into Dia.
• November 23, 2026. On iOS and Android, Browse for Me and other AI features turn off. Arc Search still works as a browser, without sign-in or tab sync.
• December 22, 2026. Arc stops working on macOS and Windows, sign-in ends, accounts are deactivated, and Arc Search for Android leaves Google Play.

So Arc is supported in the sense that it still opens today. It is not something to build a workflow on for the next two months.

What You Lose on December 22

Each route off Arc keeps a different part of your setup, and two things can't be saved anywhere.

Two things no route keeps. Export your Easels as a ZIP before December 22, and know that Boosts can't be exported at all.

The Dia import is a one-time copy. Anything you change in Arc after importing does not reach Dia. Zen's importer reads Arc's data folder in place, so run it while Arc is still installed.

How to Save Your Arc Data Before December 22

On December 22 every Arc account is deactivated, and personal data tied to it is deleted within 30 days. After that, The Browser Company can't retrieve anything for you.

• Moving to Dia? No export needed. Dia imports your Spaces, Favorites, pinned tabs and folders straight from Arc.
• Keeping your current browser? No export needed either. SupaSidebar imports your Spaces, pinned tabs and folders straight from Arc (Preferences > Data > Arc) and puts them in a sidebar next to Safari, Chrome or any other Mac browser.
• Back up the whole sidebar in one file. In Finder, press Shift+Cmd+G, paste ~/Library/Application Support/Arc/StorableSidebar.json and copy the file somewhere safe. It holds every Space, pinned tab and folder, and SupaSidebar can still import the copy after Arc stops working.
• Export everything on Mac. Arc > Settings > Advanced > Export Data, per Arc's export guide. Arc saves a file called Arc Data Export.md with a list of links for each Space.
• Export everything on Windows. Press Ctrl + comma, find Export Spaces and tabs under Advanced, and select Export Data.
• Export one folder. Right-click the folder in the sidebar and select Copy All Links.
• Save your Easels. Open your Library, select Easels, then Export All Easels. You get a ZIP of web pages.
• Boosts can't be saved. They don't export and don't come over to Dia.

Arc's own export is a list of links, not a bookmarks file, so another browser won't import it directly. The free Arc Sidebar Exporter turns the sidebar file into bookmarks any browser can import. For the full move, see how to export your Arc sidebar and migrating from Arc step by step.

What Happened to Arc Browser? The Full Timeline

The newest events come first.

As tech journalist John Gruber covered the deal on Daring Fireball, many observers questioned whether enterprise software DNA was compatible with building innovative, user-focused browsers.

Three Reasons Arc Couldn't Survive

Arc's end came from three problems that built on each other.

What Arc Users Actually Miss

Here's what gets missed in most "Arc is dead" discussions: people don't miss Arc the browser. They miss three specific features that no other browser has fully replicated.

The sidebar was Arc's core value proposition. Losing it is what actually hurts.

The Sidebar Pattern Lives On

Arc's sidebar outlived Arc. Chrome, Edge, Firefox, Opera and Dia added vertical tabs, Safari is adding them in 27.3 (in beta now, final expected in December), and Zen rebuilt Arc's sidebar inside a new Firefox-based browser. Only a separate app keeps Arc's sidebar in the browser you already use.

Vertical tabs solve one Arc problem, long tab titles. Google's stated reason for adding them was to help people "read full page titles and manage tab groups with ease." Arc's sidebar did more than list open tabs. It kept saved links and open tabs in one list, split them into Spaces, and put a command bar over all of it.

Saved links, open tabs, Spaces and a command bar in one sidebar is the part of Arc the big browsers have not copied. Zen has it, but only if you move to Zen. SupaSidebar rebuilds it as a separate Mac app, so the sidebar sits next to whichever browser you use instead of living inside one. Arc showed what browsers could be. The sidebar is the part worth keeping.

How to Keep Your Arc Habits in Any Browser

You don't need Dia to keep the way Arc worked. SupaSidebar puts Arc's sidebar and habits next to Safari, Chrome, Firefox or any of 32+ Mac browsers.

Each one is set up step by step in our guide to Arc's sidebar and Spaces in any Mac browser.

Conclusion: Is Arc Browser Dead in 2026?

Yes. Arc stops working on December 22, 2026, after a year and a half in maintenance mode. Until then it still launches and browses, but new accounts are closed, the team is on Dia, and every Arc account is deactivated on the shutdown date. The only open question is where your sidebar goes next.

For most Arc users, the question "is Arc dead" is really a question about the workflow, not the engine. The sidebar, Spaces, and Cmd+T command bar are the parts that hurt to lose, and they need a new home before December 22. If you want the official successor, Dia imports Arc directly. If you want a full browser replacement that mirrors Arc's design, Zen Browser is closest. If you want to keep the Arc workflow without picking a new browser, SupaSidebar imports your Arc Spaces, folders and pinned tabs and runs alongside Safari, Chrome, Firefox, Brave, Zen, Vivaldi, Helium, and Dia. The sidebar pattern Arc proved out is not going anywhere - just the browser that introduced it.

Why we recommend SupaSidebar

SupaSidebar is a macOS app that brings Arc's sidebar to every browser - one sidebar for tabs, bookmarks, files, and apps across 32+ browsers including Safari, Chrome, Firefox, Zen, Vivaldi, Brave, Helium and Dia. It is the closest 1-to-1 replacement for the Arc workflow that does not require switching browsers, and it imports your Arc Spaces, folders and pinned tabs.

For a deeper feature-by-feature comparison, see our Arc Browser alternative guide, switching from Arc Browser, and how to replicate Arc features in any browser.

---

Frequently Asked Questions

How We Counted What Arc Users Said

The numbers in this guide come from public threads read in November 2026. Each one is linked here so you can check them.