DownloadDia and Arc both come from The Browser Company, but they target different users. Arc is a feature-rich browser for power users who organize many tabs; Dia is a simpler, AI-first browser built around a single prompt that understands your tabs. Choose Arc for organization, Dia for woven-in AI.
Dia vs Arc at a glance
| Category | Dia | Arc |
|---|---|---|
| Maker | The Browser Company | The Browser Company |
| Focus | AI in every tab | Tab organization |
| Complexity | Simple | Feature-rich |
| Engine | Chromium | Chromium |
| Best for | Everyday AI browsing | Power users |
Dia: AI-first simplicity
Dia centers on an AI prompt that can read your open tabs, answer questions, summarize, and help you write in context. It's designed to be approachable, stripping back Arc's complexity for people who want AI help without a learning curve.
Arc: power-user organization
Arc remains the richer browser, with spaces, split view, and deep tab management. It's the better choice if your main need is organizing a large, complex browsing life rather than AI assistance.
Which should you choose?
Pick Dia if you want AI woven into simple, everyday browsing. Pick Arc if you're a power user who lives in tabs and wants maximum control. Both are Chromium-based, so compatibility is excellent either way.
Both still need a download manager
Dia and Arc share Chromium's standard single-connection downloader. The AI can find files for you, but downloading large ones faster and resuming reliably is still the job of a manager like Myan.
No matter which browser you choose, Myan captures the download for you — with pause, resume, and multi-connection speed. Myan is a free, native download manager for macOS on Apple Silicon.