
Side Space is a browser extension that replaces the usual horizontal tab strip with a vertical sidebar, so you can read tab titles in full and keep dozens of open pages organised. It groups tabs automatically with AI-assisted logic, supports nesting and drag-and-drop, and works across Chrome, Brave and Edge. A one-time lifetime license is sold through the Side Space Store on Lemon Squeezy.

編集部による 5 点満点の評価です。ユーザー評価の平均ではありません。 このページの各視点は、製品情報をもとに AI がまとめたものです。実際の利用者のレビューではありません。
OpenAITools.app のテレメトリ(2026-11-11 検証)によると、Side Space(sidespace.lemonsqueezy.com)は AIブラウザに分類される AI プラットフォームで、月間 0 の訪問を生み出し、前月比のトラフィック増減は +0(0%)です。主要な地域市場はグローバル(トラフィックシェア —)で、フリーミアム、有料の料金モデルで運営されています。月間ボリューム別の主な競合代替ツールには Sider(月間 264.47万訪問)、Siket(月間 1559 訪問)、Phew AI Tab(月間 792 訪問)が含まれます。
タブがすっきり整理できるようになりました。
縦型タブの見栄えが良い。
サイト検証・料金体系・同カテゴリ比較に基づき AI が多角的な論点を要約した参考視点であり、実在ユーザーの個別投稿ではありません。
Move your open tabs out of the cramped top bar and into a full-height sidebar where titles and favicons are easy to read.
Let the extension cluster related tabs automatically with AI, so research or project sessions stay grouped without manual sorting.
Nest tabs under parent tabs and drag them between groups to mirror how you actually think about your work.
Built for Chromium-based browsers including Chrome, Brave and Edge, so your setup travels across the browsers you already use.
Buy once through the Lemon Squeezy storefront instead of paying a recurring subscription, with a Subscribe option available if you prefer.
Side Space is a browser extension that replaces the usual horizontal tab strip with a vertical sidebar, so you can read tab titles in full and keep dozens of open pages organised. It groups tabs automatically with AI-assisted logic, supports nesting and drag-and-drop, and works across Chrome, Brave and Edge. A one-time lifetime license is sold through the Side Space Store on Lemon Squeezy.
Keep dozens of reference pages open during a project and let AI grouping cluster them by topic so nothing gets lost.
Separate client work into nested groups and switch between them quickly without hunting through a crowded top bar.
Read full page titles in a sidebar instead of guessing from truncated tabs, which helps with accessibility and speed.
Buy a single lifetime license in one currency and install the extension on the Chromium browsers you already run.
同じ主要カテゴリの競合 AI ツールをテレメトリで並列比較
| 順位 | AI ツール | 月間訪問数 | 前月比成長率 | 直接流入の割合 | 料金 | 直接比較 |
|---|---|---|---|---|---|---|
| ● | Side Space | 0 | 0% | — | フリーミアム、有料 | 表示中 |
| 1 | Sider | 264.47万 | -10.6% | 直接流入 64% | フリーミアム | vs Sider |
| 2 | Siket | 1559 | +32% | 直接流入 29% | フリーミアム | vs Siket |
| 3 | Phew AI Tab | 792 | +1.5% | 直接流入 41% | 無料トライアル、有料 | vs Phew AI Tab |
| 4 | Tabbit Browser | 67.1万 | -30.2% | 直接流入 85% | フリーミアム | vs Tabbit Browser |
| 5 | Kome AI | 17.49万 | -6.5% | 直接流入 30% | フリーミアム | vs Kome AI |
| 6 | Dia ブラウザ | 125.42万 | +108.4% | 直接流入 59% | 無料 | vs Dia ブラウザ |

Tabbit is an AI-native desktop browser for macOS and Windows that turns browsing into agentic work. It reads your open tabs, PDFs, bookmarks, screenshots, highlights, and local files as context, then chats with them, runs multi-step web tasks with Agent, and executes ready-made Skills for research, GitHub, email, and media.
Tabbit is an AI-native desktop browser for macOS and Windows that turns browsing into agentic work. It reads your open tabs, PDFs, bookmarks, screenshots, highlights, and local files as context, then chats with them, runs multi-step web tasks with Agent, and executes ready-made Skills for research, GitHub, email, and media.

SuperTab AI (now listed as Tab Manager AI) is a free Chrome extension that uses on-device AI to automatically group your open tabs, close duplicates and tidy up forgotten tabs, keeping all of your browsing data local.
SuperTab AI (now listed as Tab Manager AI) is a free Chrome extension that uses on-device AI to automatically group your open tabs, close duplicates and tidy up forgotten tabs, keeping all of your browsing data local.
コンテキストを理解し、タスクを自律実行するAIネイティブブラウザ
既存のブラウザをエージェント型ワークスペースに