
Vivaldi Windows Panel vs Side Space
Introduction
Managing browser tabs efficiently is crucial for staying organized and productive, especially in today’s multitasking world. Whether you’re a casual user with a few tabs open or a power user handling dozens of projects, having the right tools can make all the difference. In this blog, we’ll compare two powerful solutions for vertical tab management: Vivaldi Window Panel and Side Space. Both are designed to streamline your workflow, but they cater to different needs and browsing styles. Let’s dive into their features, strengths, and which one might be the best fit for you.
Here’s a detailed comparison of Vivaldi Windows Panel and Side Space, focusing on their features, functionality, and ideal users:
| Feature | Vivaldi Windows Panel | Side Space |
|---|---|---|
| Primary Function | A panel that displays open tabs, tab stacks, and windows in a hierarchical, tree-style view. | An advanced vertical tab management extension offering features like AI-powered grouping, categorized spaces and cloud syncing. |
| Vertical Tab Management | Supports vertical organization with a tree-style structure for grouping and managing tabs. | Provides a vertical layout with enhanced organization using categorized spaces and advanced grouping features. |
| Tab Stacking | Allows manully stacking tabs into groups within the panel for hierarchical organization. | Offers AI-powered tab grouping, automatically organizing tabs by topics or tasks into distinct spaces. |
| AI-Powered Grouping | Not available. | Uses a high-quality AI model to automatically group tabs for improved organization and efficiency. |
| Customization Options | Highly customizable, with options to adjust the panel’s layout, width, and content. | Offers extensive customization, including themes, icons, dark mode, and tailored space layouts. |
| Cross-Device Sync | Syncs tabs, sessions, and settings across devices via Vivaldi's account system. | Automatically syncs tab groups and spaces across devices and browsers for seamless browsing. |
| Tab Suspension | Browser-wide tab hibernate settings. | Built-in feature to suspend and save tabs, reducing memory usage and improving performance. |
| Search Functionality | Includes search within the Windows Panel for open tabs and sessions. | Includes global and fuzzy search, making it easier to find tabs quickly. |
| Browser Compatibility | Exclusive to the Vivaldi browser. | Works as a Chrome extension, compatible with Chrome, Edge, Brave, and other Chromium-based browsers. |

Vivaldi Windows Panel
Key Differences
- Tab Grouping:
- The Vivaldi Windows Panel uses a manual tab stacking system for organization.
- Side Space automates the grouping process with
high-quality AI model, saving time and improving organization.
- Feature Focus:
- Vivaldi’s Windows Panel is deeply integrated into its ecosystem, offering hierarchical management and browser-specific tools.
- Side Space emphasizes universal tab management with features like suspension, cross-device syncing, and workflow optimization.
- Browser Compatibility:
- The Vivaldi Windows Panel is exclusive to the Vivaldi browser.
- Side Space is a Chrome extension, making it accessible across various Chromium browsers.
- Customization:
- Both offer high levels of customization, but Side Space stands out with unique features like spaces saving and syncing, dark mode, and duplicate tab removal.
Which One to Choose?
- Vivaldi Windows Panel: Perfect for users who already use Vivaldi and enjoy its ecosystem of tools and hierarchical tab management.
- Side Space: Ideal for users managing multiple browsers or seeking advanced tab management with AI-powered features and seamless cross-device workflows.
For those who value browser integration and manual control, the Vivaldi Windows Panel is a strong choice. If you’re after automation, flexibility, and cross-platform support, Side Space delivers unparalleled tab management.
What’s Coming Next?
Exciting updates are on the way! Side Space is developing a multi-window management feature, enabling you to manage tabs from different browser windows in one centralized location.
This will be especially valuable for users who often juggle multiple browser windows. You’ll be able to seamlessly move tabs between windows or even reorganize tab groups across them.
Stay updated by visiting our Roadmap!
