CogniSphere icon

CogniSphere

by perry.lei · Education
Manifest V3 in_app
View in Chrome Web Store Data as of 16 Oct 2026

AI-powered webpage analysis and content understanding

Users
10
+2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#196K
#164K among extensions
Version
0.0.37
updated 27 Sep 2026

Users

monthly, 13 months
0612Oct 2025May 2026Oct 2026
Latest, 16 Oct 2026: 10 usersMove the mouse over the chart for any month

Ratings count

monthly, 13 months
001Oct 2025May 2026Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About CogniSphere

CogniSphere - AI-Powered Web Analysis Assistant Transform your browsing experience with CogniSphere, a cutting-edge Chrome extension that brings advanced AI intelligence directly to any webpage. Analyze content, ask questions, and gain insights with mathematical precision and multilingual support. Key Features 🚀 Universal Content Analysis 🌐 - One-click page summarization instantly extracts key insights from any webpage - Intelligent Q&A answers questions about the current page with context-aware responses - Multi-platform support covers Twitter/X, YouTube, Reddit, and general websites - Real-time streaming displays AI responses as they arrive Advanced Mathematical and Visual Rendering ∑ - Comprehensive LaTeX support renders complex mathematical expressions and formulas - Mermaid and SVG previews generate diagrams and render vector graphics accurately - KaTeX integration delivers fast, high-quality mathematical typesetting with 300+ symbols - Intelligent math detection separates math from currency or similar patterns - Multiple formats include inline ($...$), block ($...$), and LaTeX environments Developer-Friendly Code Rendering 💻 - Syntax highlighting produces readable code blocks for major programming languages - Interactive preview button opens HTML, HTM, XHTML, XML, SVG, and Mermaid blocks without leaving the page - One-click copy lets you grab any snippet instantly Multiple AI Providers 🤖 - Gemini offers Google's latest models including Gemini 2.0 Flash with thinking capabilities - DeepSeek provides powerful reasoning models such as DeepSeek-R1 and coding variants - OpenRouter unlocks 100+ models including Claude, GPT-4, and Llama - Ollama runs models locally for privacy and offline usage - xAI Grok supplies advanced multimodal reasoning Professional Features 🛠️ - Secure storage keeps API keys encrypted and local - Multilingual interface supports English and Chinese with automatic detection - Advanced streaming ensures resilient, real-time responses with recovery Privacy and Security 🛡️ - Local data storage keeps all API keys and settings on your device - Anonymous usage tracking is optional and never uploads personal data - No data collection means your conversations and browsing data stay private Perfect For 🎯 - Students and researchers who analyze academic papers and render mathematical formulas - Developers seeking code analysis, documentation help, and technical Q&A - Content creators exploring social media trends and summarizing content - Professionals reviewing meeting notes, documents, and research - Educators preparing lessons with mathematical content and student support Use Cases 📚 - Academic research: analyze papers, extract methodologies, render proofs and equations - Content analysis: understand social media trends, evaluate viral content, review discussions - Development work: assist with code review, documentation analysis, and technical Q&A - Mathematical learning: explore equation solving, formula explanations, and step-by-step reasoning Regular Updates 🔄 - New AI provider integrations - Enhanced mathematical and diagram rendering capabilities - Improved content extraction algorithms - Additional language support - Performance optimizations Why Choose CogniSphere? 💡 CogniSphere is designed for intelligent web content analysis. Advanced mathematical rendering, interactive code previews, multi-provider AI support, and a privacy-first architecture make it the ideal choice for users who demand precision, flexibility, and security. Download CogniSphere today and experience the future of intelligent web browsing.

Growth

WindowUsersChangeRatingsRating
7 days+1+11.1%00.00
30 days+2+25.0%00.00
6 months+6+150.0%00.00
1 year+9+900.0%00.00

Version history

10 versions recorded
0.0.3727 Sep 2026
0.0.367 Sep 2026
0.0.3515 Aug 2026
0.0.349 Aug 2026
0.0.336 Aug 2026
0.0.3228 Mar 2026
0.0.314 Jan 2026
0.0.324 Nov 2025

Details

Category
Education
First seen
4 Oct 2025
Size
4.2 MB
Languages
en, zh-CN
Pricing
in_app
Privacy policy
cognisphere.leiping.dev
Support
cognisphere.leiping.dev
Extension ID
oekpagjcpoacpbekpechjcammimhihnn

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
activeTabstoragescriptingcontextMenuswebNavigationtabsdeclarativeNetRequest
Site access
https://cognisphere.leiping.dev/*http://localhost:11434/*http://127.0.0.1:11434/**://*/*
Can read and change data on every website you visit.

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