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Arc is still downloadable, but it is no longer a straightforward choice for users who need active security patches: The Browser Company’s current Arc download page says Arc receives Chromium updates only and recommends Dia for active security patches and enterprise-grade protection. That vendor statement is not an independent security assessment or a guarantee about future support. If you are weighing a move, compare candidates against the Arc features you actually use—not a blanket claim that one browser is the best replacement.
What Arc users may need to replace
Arc’s appeal is tied to a particular way of working, not just its Chromium foundation. The Browser Company’s homepage presents Spaces and Profiles as ways to organize work, study, and hobbies, and lists Split View and Themes as customization features. A browser that looks similar or has an AI assistant may still be a poor fit if it cannot preserve the separation and side-by-side workflow you rely on.
- Spaces and Profiles: Do you keep separate contexts, accounts, or activities apart?
- Vertical tabs and workspaces: Do you need a persistent, scannable way to group many open tabs?
- Split View: Do you regularly work with two pages visible at once?
- Platform coverage: Does the browser support every computer and mobile device you use?
- Product direction: Do you want tab organization, an AI-centered experience, or a different priority?
- Security and privacy: What update policy and privacy features fit your threat model? Marketing claims are not independent audits.
How the leading options differ
The available descriptions point to different directions rather than one universal successor. TechCrunch’s July 22, 2026 overview describes Dia as AI-centric; Zen as offering Workspaces and Split View; Vivaldi as having a customizable interface; Brave as emphasizing privacy-oriented features; and SigmaOS as taking a workspace approach. That is a dated overview, not a current feature or availability guarantee. Check each vendor’s own product information before installing or relying on a particular capability.
| Browser | What the cited descriptions establish | What to verify for your use |
|---|---|---|
| Arc | The Browser Company lists Spaces, Profiles, Split View, and Themes. Its download page says Arc receives Chromium updates only and recommends Dia for active security patches. | Whether its current update approach and your platform needs are acceptable. |
| Dia | TechCrunch described it as AI-centric in an overview published July 22, 2026. | Whether its current organization tools match your Arc workflow, and current platform availability and terms. |
| Zen | A surfaced Zen Browser listing describes a free, open-source Firefox fork for Windows, macOS, and Linux, with vertical tabs, workspaces, and Split View; it lists version 1.23b dated October 3, 2026. | Confirm supported operating-system versions, mobile availability, current features, and release status with Zen’s official site or release repository. The listing is tertiary and does not establish a like-for-like match for Arc Profiles. |
| Vivaldi | TechCrunch described its interface as customizable in its July 22, 2026 overview. | Whether its current tab organization and side-by-side features fit your setup. |
| Brave | TechCrunch described privacy-oriented features in its July 22, 2026 overview. | Whether its current privacy controls and organization features meet your needs. |
| SigmaOS | TechCrunch described a workspace approach in its July 22, 2026 overview. | Current platform support, feature set, and availability. |
Why Dia is not automatically an Arc replacement
Dia is The Browser Company’s successor direction, and its AI-centered design may appeal if you want browser features organized around AI. But an AI focus does not by itself establish that Dia reproduces Arc’s Spaces, Profiles, Split View, or customization model. Before switching, check whether the current Dia experience supports the particular separation and page-layout habits you depend on. The vendor’s recommendation to download Dia for active security patches should be read as its statement about Arc’s update approach—not proof that Dia is the right workflow match for every Arc user.
#1 Best Overall
When Zen is worth evaluating
Zen is a plausible candidate if your Arc use centers on vertical tabs, workspaces, and side-by-side pages. Its surfaced listing describes those features and lists Windows, macOS, and Linux support, but those claims should be checked against Zen’s own site or release repository. The available information does not establish that Zen duplicates Arc’s Profiles or supports every device and workflow you may use.
Try it against a representative set of tasks rather than judging by the interface alone: separate two kinds of browsing, reopen a work area, keep frequently used tabs accessible, and place two pages side by side. Confirm that the behavior survives restarting the browser and that your operating systems are supported. This is a practical fit check, not a claim that Zen has been benchmarked against Arc.
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Choose by workflow, platform, and product priorities
- Write down the Arc features you would miss. Distinguish essentials—such as separate Spaces or Split View—from features you rarely use.
- Check every device you depend on. Arc’s download page lists Mac, Windows, and iOS. For alternatives, confirm current desktop and mobile support, exact supported versions, and whether features are consistent across platforms.
- Match the browser’s organizing model to your habits. Look for the specific equivalents you need: workspaces, profiles, pinned tabs, vertical tabs, or grouping. A shared label such as “workspace” does not prove identical behavior.
- Decide whether AI is a priority. Dia’s described AI-centered direction is relevant if that is what you want; it is not a substitute for checking the organization tools you use in Arc.
- Review update and privacy information directly. Read current vendor statements and decide whether they satisfy your requirements. Do not treat product marketing as an independent security audit.
- Test before migrating important work. Recreate a small version of your routine, check how tabs and contexts are restored, and only then decide whether to move fully.
What the evidence supports—and what it does not
There is enough information to identify meaningful candidates and compare their stated directions, but not to declare a best replacement for all Arc users. The descriptions above do not provide hands-on comparative testing, an independent security assessment, or a complete current inventory of platform support and features for every candidate. Browser availability and capabilities can change; verify current vendor information before making a decision.
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