Memdex

Chrome extension that saves all your AI chats and brings back relevant context when you type in ChatGPT, Claude, or Gemini.

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memdex.ai
Verified Free tier
Quick facts
What is it Chrome extension that saves all your AI chats and brings back relevant context when you type in ChatGPT, Claude, or Gemini.
Pricing Freemium — from $10/mo
Free tier Yes
Platform Chrome Extension
Best for finding a specific technical discussion you had with an AI last week, continuing a project discussion in Claude that you started in ChatGPT
Domain registered 2025

Data updated Sept. 19, 2026

What does Memdex do?

Memdex is a Chrome extension that automatically saves your conversations with AI tools like ChatGPT, Claude, and Gemini. It stores everything locally on your device, then helps you find and reuse past discussions when you need them. Instead of losing track of valuable context, Memdex keeps all your AI interactions organized and accessible.

The tool works by detecting keywords as you type in any supported AI platform. When you mention something you've discussed before, Memdex highlights those words and lets you inject the full previous conversation with one click. This means you don't have to re-explain your project details or preferences each time you start a new chat. All data stays encrypted on your device—nothing gets uploaded to external servers.

Memdex is ideal for developers, researchers, writers, and anyone who regularly uses multiple AI tools for work. It's particularly useful for continuing complex technical discussions across different platforms, maintaining consistent project context, or simply avoiding the frustration of repeating yourself in every new conversation.

#ai context#chat history#chrome extension#local storage#productivity

Key features

What makes it stand out
01
Auto-saves conversations across ChatGPT, Claude, and Gemini
02
Real-time keyword detection highlights relevant past discussions
03
One-click context injection into any AI tool
04
100% local encrypted storage on your device
05
Works with keyboard shortcuts for any text input

Who is Memdex for?

Who benefits most from this tool
finding a specific technical discussion you had with an AI last week
continuing a project discussion in Claude that you started in ChatGPT
avoiding re-explaining your project background in every new chat

Pricing

Free tier available — start without a credit card

Free

Free
  • limited add context
  • 10 conversations
  • limited cross AI continuation
  • Manual recording of conversations
  • Only access to your 10 most recent conversations
  • Unlimited conversation saving
  • Limited add context
  • Limited cross-AI continuation
  • Basic search
  • Community support

Pro

$10/month
  • Auto-record every conversation
  • Access all conversations
  • Unlimited conversation saving
  • Unlimited add context
  • Unlimited cross-AI continuation
  • Advanced search & management
  • Priority support

Pro Lifetime

Custom

Everything in Pro, plus:

  • All Pro benefits included

Trust & presence

Domain Domain registered 2025

Gallery

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