Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Vidnotes records 0 monthly visits with — growth and Free pricing.
AI sidebar and browser agent for reading, writing and research
Free Chrome extension that turns recitation recordings into AI notes
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| 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 |
| 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.
Free Chrome extension that turns recitation recordings into AI notes
Play a Columbia recitation recording and the extension drafts AI notes from the spoken content, so you do not have to transcribe it yourself.
Notes are tied to timestamps in the recording, making it easy to jump back to the exact moment a point was made.
Notes condense a full session into the key points, so reviewing before an exam takes minutes rather than hours.
Installs as a lightweight Chrome extension that the developer states does not collect or sell user data.
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.
Live meeting transcription and AI notes without a bot in the call
Live meeting transcription and AI notes without a bot in the call
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.
Free AI flashcard and study tools for students
Free AI flashcard and study tools for students
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.
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Turn any lecture, file, or video into notes, flashcards, and quizzes
Turn any lecture, file, or video into notes, flashcards, and quizzes
AI that watches your video and writes study notes as you watch
AI that watches your video and writes study notes as you watch
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.
