Top 5 Best Alternatives to Arc Browser for Windows (Ranked by Productivity & RAM Usage)

Arc Browser earned a cult following for its vertical tabs, Spaces, and calm, clutter-free interface but the browser’s future is no longer in doubt. The Browser Company put Arc into maintenance mode in May 2025 (security patches only, no new features), and after Atlassian’s $610 million acquisition of the company in late 2025, the original team’s energy has shifted entirely to Dia, a separate AI-first browser. Arc still launches and runs fine on Windows, but if you’re searching for an alternative, you’re not being paranoid you’re being practical.

This guide ranks the five best Arc Browser alternatives for Windows in 2026, weighing two things Windows users actually care about: productivity (tab management, workspaces, split view, AI tools) and RAM usage (because most Windows laptops aren’t running 32GB of memory just for a browser). Every pick below is actively developed, available natively on Windows, and tested against real memory benchmarks not marketing claims.

How We Ranked These ARC Browser Alternatives

Before the list, here’s the criteria that decided the order:

• Memory footprint average RAM consumption with 10+ tabs open, based on independent benchmarking data and community testing
• Tab and workspace management vertical tabs, tab stacking/grouping, workspaces or “Spaces”-style organization
• Native Windows integration taskbar behavior, Windows 11 features, hardware acceleration support
• Extension compatibility Chrome Web Store support matters for most switchers
• Ongoing development is the browser actively shipping updates, or coasting?

1. Microsoft Edge — Best Overall for Windows Productivity

Microsoft Edge has quietly become the most practical Arc replacement for Windows users, mainly because it’s built for Windows rather than ported to it. It ships with vertical tabs, Workspaces (Edge’s answer to Arc’s Spaces), and a native Split Screen view for working with two pages side by side all without installing anything extra.

On the productivity side, Edge’s Copilot integration goes further than Arc ever did: it can summarize pages, compare tabs, and even run multi-step tasks in Agent Mode on supported sites. For anyone already inside the Microsoft 365 ecosystem, this alone can justify the switch.

On RAM, Edge benefits from Sleeping Tabs and Efficiency Mode, which automatically suspend background tabs and throttle CPU usage when your laptop is on battery. Independent testing puts a base Edge session in the 1.3–1.5GB range with several tabs open heavier than Brave, but noticeably better managed thanks to automatic tab suspension, and it scales well because Windows itself optimizes memory for Edge processes.

Best for: Windows users who want Arc-like organization without leaving the Microsoft ecosystem, and anyone prioritizing built-in AI features over pure minimalism.

2. Vivaldi — Best for Deep Customization

If Arc’s appeal was that you could shape the browser around your workflow, Vivaldi takes that idea further than anyone else. It offers tab stacking, tab tiling (view multiple tabs in a grid), a built-in notes tool, a web panel sidebar for pinning apps like Gmail or Notion, and a Workspaces feature that mirrors Arc’s Spaces almost exactly.

Vivaldi is Chromium-based, so every Chrome extension works out of the box, and its UI theming options go far beyond Arc’s you can rebuild almost every part of the interface, from tab bar position to keyboard shortcuts.

The tradeoff is memory. Being Chromium-based and feature-dense, Vivaldi typically runs in the 1.3–1.6GB range with a handful of tabs open, similar to or slightly heavier than Chrome itself in some benchmarks. It’s not the leanest option on this list, but its resource-management settings (like tab hibernation) let power users claw back a meaningful chunk of that usage.

Best for: Power users and multitaskers who want granular control over layout and don’t mind trading some RAM efficiency for flexibility.

3. Brave — Best for Low RAM Usage and Privacy

If your priority is squeezing every browser alternative for RAM efficiency, Brave is the clear winner among Chromium-based options. Independent memory benchmarking has repeatedly shown Brave using roughly 40–45% less RAM than Chrome or Edge in equivalent multi-tab test largely because its aggressive built-in ad and tracker blocking means far fewer background scripts ever load in the first place.

Brave supports vertical tabs, split-screen browsing, full Chrome extension compatibility, and a growing Workspaces-style tab organization system, though it’s not as deep as Vivaldi’s or Edge’s. Where Brave pulls ahead is privacy: built-in Tor windows, fingerprinting protection, and an ad blocker that’s genuinely on by default not an afterthought.

The one caveat: because Brave blocks so aggressively, a small number of sites (especially ones relying on ad-tech scripts) can occasionally misbehave until you whitelist them.

Best for: Budget laptops, low-RAM devices, and anyone who wants Arc’s cleanliness without sacrificing privacy or performance.

4. Zen Browser — Best Arc Look-Alike

For anyone who misses Arc’s actual interface more than any specific feature, Zen Browser is the closest thing to a spiritual successor available today. It’s free, open-source, and built specifically to recreate Arc’s sidebar, Spaces, and minimalist aesthetic down to the workspace switcher and split-view layout.

The key difference is under the hood: Zen runs on Firefox’s Gecko engine, not Chromium. That’s a meaningful shift for anyone deep in Chrome-only extensions or web apps that quietly assume a Chromium browser, but for most everyday browsing it’s seamless, and it comes with a real upside — Gecko-based browsers are historically lighter on RAM at scale than Chromium browsers once you get past 20+ open tabs.

Zen is available natively on Windows (as well as macOS and Linux), and because it inherits Firefox’s engine, it also inherits Firefox’s container tabs and strong tracking protection. The tradeoff is maturity: as a smaller open-source project, updates can be less frequent than Edge’s or Brave’s, and some niche Arc features (like Easels or Boosts) simply don’t have an equivalent yet.

Best for: Ex-Arc users who want the sidebar-and-Spaces workflow rebuilt faithfully, and who don’t mind trading Chromium for Firefox’s engine.

5. Opera — Best for Built-In Extras

Opera rounds out this list as the browser that tries to replace not just Arc, but several other apps at once. It includes a free built-in VPN, an integrated sidebar with quick access to WhatsApp, Instagram, and other messaging apps, a Workspaces tab-grouping system, and Aria, Opera’s built-in AI assistant for summarizing pages and answering questions in-browser.

Productivity-wise, Opera’s tab islands (its version of tab grouping) and split-screen mode cover most of what Arc users relied on day to day, and its sidebar apps reduce the need to alt-tab between separate windows.

On RAM, Opera sits in a similar range to Vivaldi and Edge moderate, not lightweight since it’s also Chromium-based and running several bundled features in the background. Users who disable the sidebar apps and VPN they don’t use can bring usage down closer to a standard Chromium baseline.

Best for: Users who want an all-in-one browser with messaging, VPN, and AI baked in in exchange for using more baseline memory.

Quick Comparison Table

Final Verdict: Which Should You Choose?

• Want the easiest, most Windows-native switch? Go with Microsoft Edge.
• Want maximum control over your browser’s layout? Go with Vivaldi.
• Running an older laptop or care most about RAM and privacy? Go with Brave.
• Miss Arc’s actual look and feel more than anything else? Go with Zen Browser.
• Want a browser that replaces other apps too (VPN, messaging, AI)? Go with Opera.

There’s no single “best” replacement for Arc on Windows the right pick depends on whether you valued Arc for its interface, its efficiency, or its all-in-one convenience. Try two of these for a week each; most people find their answer within a few days.

Frequently Asked Questions

Is Arc Browser still safe to use in 2026?

Yes. Arc still receives Chromium security patches even in maintenance mode, so it’s safe to keep using you just won’t get new features, and long-term support isn’t guaranteed.

What is the lightest Arc alternative for low-RAM Windows PCs?

Brave consistently uses the least memory among Chromium-based alternatives, thanks to its default ad and tracker blocking reducing background script activity.

Does Microsoft Edge have vertical tabs like Arc?

Yes. Edge has supported vertical tabs and Workspaces natively for several versions, making it one of the closest built-in alternatives to Arc’s layout on Windows.

Is Zen Browser based on Chrome?

No. Zen Browser is built on Firefox’s Gecko engine, not Chromium, which means it uses Firefox extensions rather than Chrome Web Store extensions.

What replaced Arc Browser officially?

The Browser Company’s official successor is Dia, an AI-first browser from the same team but Dia does not replicate Arc’s Spaces, Boosts, or sidebar model, which is why many users are choosing a different alternative entirely.