bookmarksai records 0 monthly visits with — month-over-month growth and Contact for Pricing pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
Bring-your-own-key Chrome extension that makes saved pages answer questions
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chromewebstore.google.com | sider.ai |
| Pricing Model | Contact for Pricing | Freemium |
| Monthly Visits | 0 (0) | 2.64M (2,644,740) |
| MoM Traffic Delta | 0 (—) | -314.2K (-10.6%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 0 | 1.7M |
| User Rating | 3.7 | 4.5 |
| Supported Platforms | Browser Extension | Website |
Bring-your-own-key Chrome extension that makes saved pages answer questions
When you bookmark a page, the extension saves an HTML snapshot so the content remains readable and searchable even after the live page changes.
Custom prompts let you steer the model toward a summary, a deep analysis, a comparison, or any specific question you have about the saved pages.
Read pages individually for focused answers or feed several bookmarks in at once to compare arguments and synthesize information across sources.
Define your own requirements and let the AI judge whether a saved page actually meets them, useful for screening research candidates.
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.
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.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
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.
Free / Open-sourceHighlight the web, learn in public, and build your AI clone
Free / Open-sourceHighlight the web, learn in public, and build your AI clone
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Free / Open-sourceA private Chromium browser with a built-in AI agent and offline LLM
Free / Open-sourceA private Chromium browser with a built-in AI agent and offline LLM
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Free / Open-sourceA Mac browser built for focus, with an AI companion called Airis
Free / Open-sourceA Mac browser built for focus, with an AI companion called Airis
Free / Open-sourceFree bilingual browser extension that translates any page with the AI engine you choose
Free / Open-sourceFree bilingual browser extension that translates any page with the AI engine you choose
