Side Space
An AI-powered vertical tab manager extension for organizing browser tabs in a side panel.
What is Side Space?
Side Space (also known as sidespace or side space ai) is an ai tab manager and chrome extension vertical tabs manager that assists users in organizing multiple browser tabs in a side panel. Functioning as a vertical tab sorter, it lets users set up vertical tabs chrome / chrome vertical tabs to declutter their browsing workspace. For those seeking an arc like sidebar in chrome or brave vertical tabs like arc, Side Space acts as a useful tool by providing a structured browser with sidebar. It categorizes tabs into distinct spaces for work, life, and hobbies, keeps them synchronized across devices, and helps manage multiple URLs in a dedicated side browser.
Category
Best Side Space use cases by task, role, industry, and platform
These use cases show where Side Space fits best, ranked by fit score before popularity or pricing.
Side Space Pricing Plans
Compare Side Space free options, Side Space paid pricing plans, and usage notes before you choose the best way to use this AI tool in 2026.
Free, Lifetime LTD from $39
Up to 5 spaces with cloud sync, up to 1000 URLs with AI Grouping, tab group guarding, and basic support.
Unlimited spaces, unlimited URLs with AI Grouping, tab group guarding, and lifetime premium support with a 7-day money-back guarantee.
Pricing updated:Jun 12, 2026
Side Space AI Features
Side Space Pros and Cons
Pros
- Neat side panel display that maximizes vertical screen space
- Automated AI grouping reduces manual tab sorting
- Saves system memory by suspending inactive tabs
- One-click duplicate tab removal helps clean up layout
- Lifetime updates included with a one-time purchase option
Limitations
- AI grouping is limited to 1000 URLs in the free tier
- User sign-in is required to sync spaces to the cloud
- Auto AI Grouping feature is labeled as upcoming and not yet available