Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. tabOS records 0 monthly visits with — growth and Freemium pricing.
AI sidebar and browser agent for reading, writing and research
Turn your browser's new tab into a tab, notes and AI workspace
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | chromewebstore.google.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.64M (2,644,740) | 0 (0) |
| MoM Traffic Delta | -314.2K (-10.6%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
| Direct Visits / mo | 1.7M | 0 |
| User Rating | 4.5 | 4.3 |
| Supported Platforms | Website | Browser Extension |
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
Turn your browser's new tab into a tab, notes and AI workspace
Manage tabs and tab groups, drag and drop to save or close them, discard tabs to free resources, and organise everything in grid, column, list and tree views.
Create and edit documents, take notes, manage to-dos, store code snippets and use Markdown with syntax highlighting directly in the new tab.
Assemble custom-prompted AI helpers, chat with AI, use Vision AI for image recognition and choose among ChatGPT 3.5, 4.0 and Turbo models.
Create and subscribe to RSS feeds, and follow YouTube and Reddit feeds, all from inside your new tab.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
A polished space for notes, tasks, and documents that follows you across every device.
A polished space for notes, tasks, and documents that follows you across every device.
The agentic AI browser that reads your tabs, files, and screenshots as context
The agentic AI browser that reads your tabs, files, and screenshots as context
One privacy-first AI client for GPT, Claude, Gemini and more
One privacy-first AI client for GPT, Claude, Gemini and more
One browser agent that combines every major AI model with web automation
The best frontend for AI.
Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail
Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail
A private, visual AI space to save and remember anything — no folders, no tagging
A private, visual AI space to save and remember anything — no folders, no tagging
