# Side Space vs Tabbit Browser

Side Space records 0 monthly visits with 0% month-over-month growth and Freemium, Paid pricing. Tabbit Browser records 670,981 monthly visits with -30.2% growth and Freemium pricing.

| Metric | [Side Space](https://openaitools.app/tool/side-space) | [Tabbit Browser](https://openaitools.app/tool/tabbit-ai) |
| :--- | :--- | :--- |
| Website URL | https://sidespace.lemonsqueezy.com | https://www.tabbit.ai |
| Categories | AI Browsers, AI Productivity Tools, AI Assistant | AI Browsers, AI Agent, AI Productivity Tools, AI Workflow |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 0 | 670,981 |
| MoM Growth Rate | 0% | -30.2% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 567,355 |
| Review Score | 4.2 | 4.5 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## Side Space

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.

- **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.

**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

**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

[Profile (Markdown)](https://openaitools.app/tool/side-space.md)

## Tabbit Browser

Tabbit is an AI-native browser built around a simple premise: the browser should understand what you are working on, not just display it. Anything you bring in — open tabs, PDFs, bookmarks, highlighted HTML elements, screenshots, and local files — becomes context for a chat sidebar that can summarize, extract, translate, or act on it. Beyond chatting, Tabbit runs an Agent that plans and executes multi-step web actions, plus an optional CLI for developers.

A distinguishing feature is its library of Agentic Skills: prebuilt workflows for top sites that cover tasks such as triaging a video feed, pulling highlights from long podcasts, downloading Bilibili videos with subtitles, exporting ChatGPT threads to Markdown, extracting tables from research PDFs, explaining pull requests, and auditing subscriptions. Tabbit's agent can run several of these in a multi-agent pattern, and you can build and publish your own Skills. It connects to a very wide range of frontier models, routing each request only to the provider you select.

The company positions privacy as a core principle: highlights, chats, and saved pages stay on your machine, and it states that it does not sell user data or train on your reads. Tabbit is developed by LUMINALAB PTE. LTD. Free and Standard tiers cover most everyday browsing, with a paid Pro tier for heavy agent users and access to top-tier models.

**Pricing & Plans:** Freemium. The browser itself is free forever. A Free tier gives basic AI usage (x1), and setting Tabbit as your default browser unlocks the Standard tier with 10x usage at no cost. Pro is an optional paid plan at US$30.00 per month (billed monthly via Stripe) for 100x usage, top-tier models, full Agent capabilities, 10 scheduled tasks, larger context, and permanent task artifact retention.

- **Everything as context:** Drop in a tab, a file, a screenshot, or a highlighted element and the agent reads, plans, and runs on it — no copy-pasting between apps.
- **Agent and multi-agent web actions:** Automate multi-step tasks on real websites, including deep research, form filling, and data collection, with several agents working in parallel.
- **Agentic Skills library:** Ready-made Skills for the sites you actually use — video triage, podcast highlight extraction, PDF table export, PR explanations, subscription audits — plus a builder for your own.
- **Many frontier models, one browser:** Switch between a broad menu of leading models from multiple vendors, with your chosen model always shown at the top of the chat.
- **Privacy by design:** Highlights, chats, and saved pages stay on your machine, with no data selling and no training on your reads, under independently examined SOC 2 Type I controls.

**Strengths:** Free browser with a genuinely usable free tier and no-cost upgrade path; Agent and Skills turn passive browsing into completed work; Very broad model coverage with transparent routing to the selected provider; Privacy-focused design with local storage of highlights, chats, and saved pages

**Limitations:** Top-tier models and full Agent power sit behind the US$30/month Pro tier; Platform support is currently limited to macOS and Windows; Linux, iOS, and Android are still on the roadmap; Skill quality and reliability can vary by site, since some depend on third-party pages; Heavy agent usage on the free tiers is capped by the x1 and x10 usage allowances

[Profile (Markdown)](https://openaitools.app/tool/tabbit-ai.md)

## Frequently Asked Questions

### How do Side Space and Tabbit Browser compare in monthly traffic?

Side Space has 0 monthly visits, while Tabbit Browser has 670,981. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Side Space has a month-over-month growth rate of 0%; Tabbit Browser has -30.2%.

### How does pricing compare?

Side Space: Freemium, Paid. 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. Tabbit Browser: Freemium. Freemium. The browser itself is free forever. A Free tier gives basic AI usage (x1), and setting Tabbit as your default browser unlocks the Standard tier with 10x usage at no cost. Pro is an optional paid plan at US$30.00 per month (billed monthly via Stripe) for 100x usage, top-tier models, full Agent capabilities, 10 scheduled tasks, larger context, and permanent task artifact retention.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Manus](https://openaitools.app/tool/manus) | 19,195,779 | -1.7% | Free Trial | Delivers vastly more capable autonomous agent execution for complex goals, but operates as a cloud platform rather than a browser. | [.md](https://openaitools.app/tool/manus.md) |
| 2 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | Operates as a flexible browser sidebar across standard browsers rather than a dedicated AI browser client. | [.md](https://openaitools.app/tool/sider.md) |
| 3 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | One-click AI assistant for browsing, writing and research | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 4 | [Dia Browser](https://openaitools.app/tool/dia-browser) | 1,254,172 | +108.4% | Free | Offers a polished AI-native browsing experience with deep context synthesis, but lacks dedicated agentic web task automation. | [.md](https://openaitools.app/tool/dia-browser.md) |
| 5 | [Eigent AI](https://openaitools.app/tool/eigent-ai) | 575,703 | +1.4% | Freemium, Free Trial, Contact for Pricing | Provides open-source desktop AI automation across files and terminal tasks, but requires more manual setup than Tabbit. | [.md](https://openaitools.app/tool/eigent-ai.md) |
| 6 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at precise data extraction and workflow automation using browser triggers, but functions as an extension. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 7 | [ego (lite)](https://openaitools.app/tool/ego-lite) | 384,099 | +97.6% | Free | Free browser that lets AI agents run parallel web automation with your own logins | [.md](https://openaitools.app/tool/ego-lite.md) |
| 8 | [Sigma AI Browser](https://openaitools.app/tool/sigma-ai-browser) | 240,775 | -47.1% | Free | Includes offline local LLM support for privacy-focused users, but offers less advanced cross-tab agentic workflow automation. | [.md](https://openaitools.app/tool/sigma-ai-browser.md) |
| 9 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Summarize, bookmark and write with AI right in your browser | [.md](https://openaitools.app/tool/kome-ai.md) |
| 10 | [SigmaOS Airis (Alpha)](https://openaitools.app/tool/sigmaos-airis-alpha) | 90,910 | +9.2% | Freemium | A Mac browser built for focus, with an AI companion called Airis | [.md](https://openaitools.app/tool/sigmaos-airis-alpha.md) |

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Source: https://openaitools.app/compare/side-space-vs-tabbit-ai

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)