AI-powered vertical tab manager with a built-in Side Copilot assistant for Chrome-class browsers.
Side Space turns your browser's side panel into an Arc-style vertical tab system, organizing open tabs into spaces you can sync across devices. Its Side Copilot AI groups tabs by content, searches history, restores closed windows, and answers questions about open pages in chat or agent mode.
| Pricing | Freemium |
|---|---|
| Category | Productivity |
| Platforms | chrome-extension |
| Company | Side Space |
| Official website | sidespace.app |
When choosing a productivity tool, look first at how it fits the way you already work. The best tools connect with the apps you use every day — email, calendar, documents and chat — instead of becoming one more place to check. Automation matters most where work repeats: summaries, reminders, scheduling and turning notes into tasks are where AI genuinely saves time. Check whether the free tier covers your real usage, how the tool handles your data and privacy, and whether it works on the platforms you live on — web, desktop and mobile. A slightly less powerful tool that your whole team actually adopts beats a feature-rich one nobody opens.
Side Space turns your browser's side panel into an Arc-style vertical tab system, organizing open tabs into spaces you can sync across devices. Its Side Copilot AI groups tabs by content, searches history, restores closed windows, and answers questions about open pages in chat or agent mode.
Side Space offers Vertical tab manager in the browser side panel, AI-powered automatic tab grouping and Group Guard URL rules, Side Copilot chat mode for page Q&A and summarization, Side Copilot agent mode for tab, window, and history automation, Spaces with cloud sync across browsers and devices, Fuzzy tab search and tab suspension for memory savings and Session save/restore with JSON backup and dark mode.
Side Space follows a freemium model: a free tier is available, and paid plans unlock higher limits and advanced features. Check its official website for current plan prices.
Strengths of Side Space include Genuine AI tab automation, not just a chatbot overlay; Free plan covers core features including unlimited AI chat with the current page; Works on Chrome, Brave, Edge, Firefox, and more. On the downside, Full agent features use your own API key (BYOK); Pro requires a $39 one-off payment on top of the free tier; Chrome-ecosystem focused, no standalone app.
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