CogniMemo Extension
Type @cogni anywhere to search memory and chat with AI across models.
A free, lightweight extension that solves the memory gap in AI chat tools. It's useful if you want to build a searchable knowledge base from your browsing and chats, but the tiny user base and slow development suggest limited support ahead.
- Power users of ChatGPT who want persistent memory across sessions
- Researchers collecting web content and chat histories
- Knowledge workers building a second brain from browsing and AI chats
- Writers needing quick access to personal notes without switching tabs
- Users who prefer not to use browser extensions
- Those needing offline AI functionality
- Teams requiring collaborative shared memory
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In short
CogniMemo Extension — Type @cogni anywhere to search memory and chat with AI across models. Best for Power users of ChatGPT who want persistent memory across sessions, Researchers collecting web content and chat histories, Knowledge workers building a second brain from browsing and AI chats. Free to use.
Viability Score
How likely is CogniMemo Extension to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- Type @cogni in any text field to search saved memory
- Inline AI replies streamed into the same text field
- Sync memories from X/Twitter posts
- Sync memories from OpenAI interactions
- Capture web page content by selecting text
- Save AI conversations for later recall
- Organize all memories in one searchable graph
- Works with ChatGPT, Claude, Gemini, DeepSeek
- Floating assistant on any website
- User-controlled private data storage
About CogniMemo Extension
CogniMemo Extension is a browser tool that gives ChatGPT, Claude, Gemini, DeepSeek, and other AI assistants persistent long-term memory. By typing @cogni inside any text field on a webpage, you can search your personal memory graph—comprising saved notes, past chats, and captured web content—and stream AI replies inline without leaving the page. The extension also syncs memories from external sources like X/Twitter and OpenAI interactions, and lets you capture text from any page by selection. Everything is stored in a searchable, user-controlled knowledge base that turns scattered browsing and chatting into a coherent second brain. Unlike native AI tools that lack cross-session memory, CogniMemo works across multiple models and can be invoked from any text input, making it a practical add-on for knowledge workers who want continuity without switching tabs. Development appears slow (last update January 2026, version 7.0.0), and the user base is small (34 users), but the core functionality is free and functional.
Behind the Verdict
We'd reach for CogniMemo when we need a simple way to save web snippets, AI conversations, and notes into one place, then search or ask about them from any text box. The @cogni command works reliably on most input fields, and inline AI streaming feels seamless. The biggest draw is that it's free and supports multiple models—no vendor lock-in. But where it bites: the extension has only 34 users and one rating, meaning bugs or feature gaps may go unaddressed. Development is minimal (last update January 2026, just a version bump). If you need frequent updates, collaborative shared memory, or offline functionality, this isn't for you. Compared to tools like Mem.ai or Rewind, CogniMemo is far less polished but also less intrusive—it doesn't record your screen or require a subscription. In practice, we'd only recommend it to individual users comfortable with niche extensions and low support expectations.
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Use Cases
- Search your saved notes and past chats by typing @cogni in any text field
- Save X/Twitter posts directly to your personal memory graph
- Archive AI conversations for future reference and search
- Use the floating assistant on any website to write or explain content using your own data
- Select text on any web page to capture and store it in your memory graph
Models Under the Hood
as of 2026-07-18
Limitations
- As a browser extension, it requires Chrome and may not work offline.
- The memory graph syncs from specific sources (X/Twitter, OpenAI) but may not integrate with other apps.
- No API or team collaboration features are mentioned.
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