# Side Space

According to OpenAITools.app telemetry verified on 2026-11-11, Side Space (sidespace.lemonsqueezy.com) is an AI platform indexed under AI Browsers generating 0 monthly visits with a month-over-month traffic delta of +0 (0%). Its primary geographic market is Global (— traffic share), and it operates on a Freemium, Paid pricing model. Top competing alternatives by monthly volume include Sider (2.64M visits/mo), Siket (1.56K visits/mo), Phew AI Tab (792 visits/mo).

The AI-powered vertical tab manager for a tidier browser

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Side Space |
| Handle | side-space |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | sidespace.lemonsqueezy.com |
| Website URL | https://sidespace.lemonsqueezy.com |
| Categories | AI Browsers, AI Productivity Tools, AI Assistant |
| Pricing Model | Freemium, Paid |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | 0% |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 4.2 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Freemium; Pricing: Paid |
| Tags | Tab Management, Vertical Tabs, AI Tab Grouping, Browser Extension, Productivity, Organization, Chrome Extension, Brave Extension, Edge Extension |

## Overview

Modern browsers hide most of your work behind a single horizontal strip of shrinking tabs. Side Space takes the opposite approach: it moves the tab list into a vertical sidebar, where titles, favicons and grouping stay legible no matter how many pages you have open. The result is a browser that reads more like a file tree than a stack of postage stamps.

The extension leans on AI-assisted grouping to keep things tidy. Instead of manually dragging every new tab into place, related pages get clustered together, and you can refine the arrangement with nesting and drag-and-drop when you want a specific structure. It is distributed for Chromium-based browsers, with Chrome, Brave and Edge named as supported targets.

Side Space is sold as a one-time lifetime license through the Side Space Store, which is hosted on Lemon Squeezy and currently lists the lifetime license at $79.00, alongside a Subscribe option. That model suits people who keep a lot of tabs open and prefer a single purchase over a recurring fee.

## Pricing & Plans

Side Space is sold through the Side Space Store on Lemon Squeezy. The storefront currently shows a Side Space Lifetime License at $79.00 as a one-time purchase, and also displays a Subscribe option. Because it is a paid, one-time-license product rather than a metered subscription, there are no per-seat monthly charges advertised on the tracked page.

## Key Features & Capabilities

- **Vertical tab sidebar:** Move your open tabs out of the cramped top bar and into a full-height sidebar where titles and favicons are easy to read.
- **AI-powered tab grouping:** Let the extension cluster related tabs automatically with AI, so research or project sessions stay grouped without manual sorting.
- **Nesting and drag-and-drop:** Nest tabs under parent tabs and drag them between groups to mirror how you actually think about your work.
- **Chrome, Brave and Edge support:** Built for Chromium-based browsers including Chrome, Brave and Edge, so your setup travels across the browsers you already use.
- **One-time lifetime license:** Buy once through the Lemon Squeezy storefront instead of paying a recurring subscription, with a Subscribe option available if you prefer.

## Primary Use Cases

- **Manage research-heavy sessions (Researchers and analysts):** Keep dozens of reference pages open during a project and let AI grouping cluster them by topic so nothing gets lost.
- **Organise project tabs visually (Developers and freelancers):** Separate client work into nested groups and switch between them quickly without hunting through a crowded top bar.
- **Reduce tab overload (Everyday browser users):** Read full page titles in a sidebar instead of guessing from truncated tabs, which helps with accessibility and speed.
- **Pay once, use across browsers (Lifetime-license buyers):** Buy a single lifetime license in one currency and install the extension on the Chromium browsers you already run.

## Strengths

- Makes long tab titles fully readable in a vertical sidebar
- AI-assisted grouping reduces the manual work of tidying tabs
- Nesting and drag-and-drop support flexible personal organisation
- Works across Chrome, Brave and Edge
- One-time lifetime license instead of an ongoing subscription

## Limitations

- Lifetime license is a one-time purchase rather than a low monthly plan, which may put off casual users
- Only useful if you keep many tabs open; light browser users may not see the benefit
- The purchase page is hosted on Lemon Squeezy, so there is no long marketing site with extensive documentation on the tracked URL
- Availability depends on stores supporting vertical tabs in Chrome, Brave and Edge

## Frequently Asked Questions

### Which browsers does Side Space support?
Side Space is distributed as an extension for Chromium-based browsers, and its own materials name Chrome, Brave and Edge.

### How much does Side Space cost?
The store page currently lists a Side Space Lifetime License at $79.00, a one-time purchase handled through Lemon Squeezy, with a Subscribe option also shown.

### Does Side Space help when I have too many tabs?
Yes. It replaces the horizontal tab bar with a vertical sidebar and adds AI-assisted grouping, so many tabs stay visible and neatly clustered instead of shrinking to unreadable stubs.

### Is the lifetime license really one-time?
The lifetime license is a one-time payment, so you pay once rather than renewing monthly; the store page also displays a Subscribe option.

### Where do I buy it?
The tracked URL is the checkout store on Lemon Squeezy, where the lifetime license is sold; browsing the extension store listing or the vendor's site is the best way to check current availability before purchase.

### What is Side Space's monthly traffic and growth trend?
Side Space currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Side Space free? What is its pricing model?
Side Space operates on a Freemium, Paid pricing model. Side Space is sold through the Side Space Store on Lemon Squeezy. The storefront currently shows a Side Space Lifetime License at $79.00 as a one-time purchase, and also displays a Subscribe option. Because it is a paid, one-time-license product rather than a metered subscription, there are no per-seat monthly charges advertised on the tracked page. Supported billing and checkout platforms include: not listed.

### What are the best Side Space alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Side Space are: 1. Sider (2.64M visits/mo); 2. Siket (1.56K visits/mo); 3. Phew AI Tab (792 visits/mo); 4. Tabbit Browser (670.98K visits/mo); 5. Kome AI (174.91K visits/mo).

### Which platforms and core AI capabilities does Side Space support?
Side Space is classified under AI Browsers, AI Productivity Tools, AI Assistant, supports the following platforms: Website, and its core capability tags include: Tab Management, Vertical Tabs, AI Tab Grouping, Browser Extension, Productivity, Organization.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [Sider](https://openaitools.app/tool/sider) | 2,644,740 | Freemium | [Compare](https://openaitools.app/compare/side-space-vs-sider) |
| [Siket](https://openaitools.app/tool/siket) | 1,559 | Freemium | [Compare](https://openaitools.app/compare/side-space-vs-siket) |
| [Phew AI Tab](https://openaitools.app/tool/phew-ai-tab) | 792 | Free Trial, Paid | [Compare](https://openaitools.app/compare/phew-ai-tab-vs-side-space) |
| [Tabbit Browser](https://openaitools.app/tool/tabbit-ai) | 670,981 | Freemium | [Compare](https://openaitools.app/compare/side-space-vs-tabbit-ai) |
| [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | Freemium | [Compare](https://openaitools.app/compare/kome-ai-vs-side-space) |
| [Dia Browser](https://openaitools.app/tool/dia-browser) | 1,254,172 | Free | [Compare](https://openaitools.app/compare/dia-browser-vs-side-space) |
| [SuperTab AI (Tab Manager AI)](https://openaitools.app/tool/supertab-ai) | 0 | Free | [Compare](https://openaitools.app/compare/side-space-vs-supertab-ai) |
| [Tabbit Browser](https://openaitools.app/tool/tabbit-browser) | 50,371 | Free | [Compare](https://openaitools.app/compare/side-space-vs-tabbit-browser) |
| [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | Freemium | [Compare](https://openaitools.app/compare/harpa-ai-vs-side-space) |
| [Chippy](https://openaitools.app/tool/chippy) | 2,987 | Freemium | [Compare](https://openaitools.app/compare/chippy-vs-side-space) |
| [SigmaOS Airis (Alpha)](https://openaitools.app/tool/sigmaos-airis-alpha) | 90,910 | Freemium | [Compare](https://openaitools.app/compare/side-space-vs-sigmaos-airis-alpha) |
| [MyNextBrowser](https://openaitools.app/tool/mynextbrowser) | 1,807 | Freemium | [Compare](https://openaitools.app/compare/mynextbrowser-vs-side-space) |

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Source: https://openaitools.app/tool/side-space