kitio.aiAdded Oct 29, 2026
Side Copilot
Freemium · $4.90/moAI agent in your browser side panel with vertical tab spaces
What is Side Copilot?
Side Copilot is a browser extension that puts an AI agent in the side panel. It chats with your open tabs, automates browser tasks such as grouping tabs, and organizes tabs into spaces in a vertical layout. The product was formerly called Side Space.
Chat mode answers questions about the tabs you have open, while agent mode can group tabs, manage windows, search history and research a topic. Tabs sit in a vertical panel and can be sorted into spaces for work, shopping, study or hobbies, with sync across browsers.
The site lists support for Chrome, Edge, Brave, Vivaldi and Firefox, among others. The free plan allows five spaces and chat with the current page, and paid plans add unlimited spaces, agent mode and browser automation.
Features
- Chat with open tabs
- Browser agent mode
- Vertical tab sidebar
- Spaces with cloud sync
- Bring your own AI key
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Releases
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Organization
Side Copilot
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- $4.90/mo
- Billing frequency
- Monthly
Side Copilot plans
Free
Free
- Up to 5 spaces with cloud sync
- Chat with current page
- 2 agent trials per day
Pro
$4.90/mo
- Unlimited spaces
- Agent mode with BYOK
- Custom shortcut templates
Pro+
$11.90/mo
- Everything in Pro
- Unlimited use of Side Copilot agent
- Cross-page browser agent
Prices in USD, checked Oct 29, 2026. Plans change often, so confirm on the Side Copilot site.Official pricing
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Pros and cons
Pros
- Free plan with five spaces
- Works across several browsers
- Agent can group and search tabs
Cons
- Agent mode is limited on the free plan
- Cross-page agent needs Pro+
- Pro+ price differs between plan table and card
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Q&A
What is Side Copilot?
Side Copilot is a browser extension that puts an AI agent in the side panel. It chats with your open tabs, automates browser tasks such as grouping tabs, and organizes tabs into spaces in a vertical layout. The product was formerly called Side Space.
Which browsers does it support?
The site mentions Chrome, Edge, Brave, Vivaldi, Firefox and several other browsers through sync.
Can I use my own AI key?
Yes. The comparison table lists BYOK for AI models from providers.
How much does Side Copilot cost?
Side Copilot is freemium, with paid plans from $4.90/mo.
Is there a free version of Side Copilot?
Yes. Side Copilot has a free plan, and paid plans add more usage and features.
What are the main features of Side Copilot?
Chat with open tabs, Browser agent mode, Vertical tab sidebar, Spaces with cloud sync, Bring your own AI key.
Who makes Side Copilot?
Side Copilot is made by Side Copilot.
What are the best alternatives to Side Copilot?
Popular alternatives include Superhuman Go, YouMind, FunBlocks.