All-in-one productivity platform for tasks, docs, goals, and team collaboration
Key facts
Pricing
Freemium
Use cases
Productivity enthusiasts needing to organize browser tabs into dedicated vertical spaces for work, social media, and personal hobbies (verified: 2026-01-29), Researchers requiring an AI agent to summarize web content and chat with current browser tabs via a side panel (verified: 2026-01-29), Multi-device users who want to synchronize their saved tab spaces and groupings across different browsers like Chrome and Edge (verified: 2026-01-29)
Strengths
The extension provides a vertical tab management interface that allows users to scan and switch between open tabs more efficiently than horizontal layouts (verified: 2026-01-29), Users can categorize tabs into distinct spaces such as shopping or study to maintain focus on one specific topic at a time (verified: 2026-01-29), The tool includes cloud synchronization capabilities to ensure that saved spaces are accessible across multiple browsers and devices (verified: 2026-01-29)
Limitations
The free version restricts users to a maximum of five spaces and limits AI grouping to 1,000 URLs (verified: 2026-01-29), Advanced automation features like Agent Mode and chatting with multiple tabs are gated behind paid Pro or Pro+ subscription tiers (verified: 2026-01-29)
Last verified
Jan 29, 2026
Strengths
- The extension provides a vertical tab management interface that allows users to scan and switch between open tabs more efficiently than horizontal layouts (verified: 2026-01-29)
- Users can categorize tabs into distinct spaces such as shopping or study to maintain focus on one specific topic at a time (verified: 2026-01-29)
- The tool includes cloud synchronization capabilities to ensure that saved spaces are accessible across multiple browsers and devices (verified: 2026-01-29)
Limitations
- The free version restricts users to a maximum of five spaces and limits AI grouping to 1,000 URLs (verified: 2026-01-29)
- Advanced automation features like Agent Mode and chatting with multiple tabs are gated behind paid Pro or Pro+ subscription tiers (verified: 2026-01-29)
FAQ
How does the vertical tab management system improve the standard browser experience?
Side Space replaces the traditional horizontal tab bar with a vertical panel located on the side of the screen. This layout makes it easier for users to identify and navigate between numerous open tabs without them becoming cramped or unreadable (verified: 2026-01-29).
What are the specific limitations for users on the free version of the tool?
Users on the free plan are limited to creating five spaces for tab organization and can use AI grouping for up to 1,000 URLs. Additionally, the free tier only allows AI chatting with the current active tab rather than multiple tabs (verified: 2026-01-29).
Can I use this extension across different web browsers and keep my data?
Yes, Side Space supports synchronization across various browsers including Chrome and Edge. It automatically saves the spaces you create, allowing you to access your organized tab groups on different devices through its cloud sync feature (verified: 2026-01-29).
