# MyNextBrowser vs Side Space

MyNextBrowser records 1,807 monthly visits with -36.4% month-over-month growth and Freemium pricing. Side Space records 0 monthly visits with 0% growth and Freemium, Paid pricing.

| Metric | [MyNextBrowser](https://openaitools.app/tool/mynextbrowser) | [Side Space](https://openaitools.app/tool/side-space) |
| :--- | :--- | :--- |
| Website URL | https://www.mynextbrowser.com | https://sidespace.lemonsqueezy.com |
| Categories | AI Agent, AI Browsers, AI Assistant, AI Productivity Tools | AI Browsers, AI Productivity Tools, AI Assistant |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 1,807 | 0 |
| MoM Growth Rate | -36.4% | 0% |
| Primary Market | United States | Global |
| Direct Visits | 712 | 0 |
| Review Score | 4.1 | 4.2 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## MyNextBrowser

Most agentic browsers ask you to switch browsers entirely. MyNextBrowser takes the opposite approach: it layers agent capability on top of the browser you already use, whether that is Chrome, Edge, Brave, Opera, Arc, or Vivaldi, keeping your extensions, history, and bookmarks in place. You give a natural-language command, the agent searches, clicks, compares, and extracts data, and you review structured output that can be exported to tools like Notion, Sheets, Slack, or Trello.

Alongside agentic browsing sit several focused AI utilities. The AI Text Enhancer rewrites emails and messages for tone and grammar; the Prompt Enhancer turns basic instructions into engineered prompts optimized for models like GPT, Claude, and Gemini; a Humanizer makes generated text read more naturally; Deep Research agents crawl multiple sources and produce exportable reports; and AI Slides and Dashboards turn ideas and data into presentations and live charts. Smart Form Fill handles repetitive applications and checkout flows.

Privacy is a core part of the pitch. The product describes a local-first architecture with no third-party trackers or analytics and a commitment not to train on user data, even on the free tier. A visible control layer shows agent reasoning, execution logs, and structured data views so you can pause, resume, or intervene at any point. A free tier is available, with a limited-time Founder Pass offered at a low one-off price.

**Pricing & Plans:** Freemium. There is a free tier with all core browsing features and a monthly allowance of AI agent tasks. A limited-time Founder Pass is available for a small one-off payment (advertised at around $4), and Pro plans exist for power users needing higher limits. A demo can be booked for team evaluations.

- **Agentic browsing in your current browser:** Works as an extension on Chrome, Edge, Brave, Opera, Arc, and Vivaldi without migrating your data or extensions.
- **Local-first privacy:** Prompts and chats stay on the browser, with no third-party trackers or analytics and no training on your data.
- **AI research and writing tools:** Deep Research, Text Enhancer, Prompt Enhancer, and Humanizer cover research, rewriting, and prompt engineering in one place.
- **Slides, dashboards, and data chat:** Turns topics into presentations and raw data into interactive dashboards, and lets you chat with documents in plain language.
- **Transparent agent control:** Live execution logs, structured data views, and pause/resume controls so agent actions are never a black box.

**Strengths:** No browser migration required—it augments what you already use; Local-first privacy stance with no trackers and no data training; Unusually broad toolset for a single extension; Transparent agent logs with pause and intervention controls

**Limitations:** Limited to Chromium-based browsers rather than all browsers; Agent tasks may rely on a mix of local and cloud models; Free tier caps agent usage, so heavy users will need a paid plan

[Profile (Markdown)](https://openaitools.app/tool/mynextbrowser.md)

## 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)

## Frequently Asked Questions

### How do MyNextBrowser and Side Space compare in monthly traffic?

MyNextBrowser has 1,807 monthly visits, while Side Space has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

MyNextBrowser has a month-over-month growth rate of -36.4%; Side Space has 0%.

### How does pricing compare?

MyNextBrowser: Freemium. Freemium. There is a free tier with all core browsing features and a monthly allowance of AI agent tasks. A limited-time Founder Pass is available for a small one-off payment (advertised at around $4), and Pro plans exist for power users needing higher limits. A demo can be booked for team evaluations. 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.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | All-in-one AI assistant across web, browser, desktop and mobile | [.md](https://openaitools.app/tool/monica-ai.md) |
| 2 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.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 | The AI browser that reads between your tabs | [.md](https://openaitools.app/tool/dia-browser.md) |
| 5 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Highlight the web, learn in public, and build your AI clone | [.md](https://openaitools.app/tool/glasp.md) |
| 6 | [Tabbit Browser](https://openaitools.app/tool/tabbit-ai) | 670,981 | -30.2% | Freemium | The agentic AI browser that reads your tabs, files, and screenshots as context | [.md](https://openaitools.app/tool/tabbit-ai.md) |
| 7 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 8 | [Sigma AI Browser](https://openaitools.app/tool/sigma-ai-browser) | 240,775 | -47.1% | Free | A private Chromium browser with a built-in AI agent and offline LLM | [.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/mynextbrowser-vs-side-space

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