Shared memory for
Any AI Tools
ChatGPT
Claude
Gemini
Grok
Perplexity
Any AI Tools
ChatGPT
Claude
Gemini
Grok
Perplexity
Any AI Tools
ChatGPT
Claude
Gemini
Grok
Perplexity
Any AI Tools
ChatGPT
Claude
Gemini
Grok
Perplexity
Any AI Tools
ChatGPT
Claude
Gemini
Grok
Perplexity

Memdex turns your AI conversations into a reusable memory — seamless recall across all your tools.

memdex.ai
ChatGPTChatGPT
We need a marketing plan for the eco-coffee cup. Target is Gen Z commuters who care about sustainability.
Here is the breakdown: Persona: The "Conscious Commuter" — values aesthetics & sustainability. Tone: Playful, authentic, not "corporate". Channels: TikTok and IG Reels for visual storytelling.
Good. Now make it more sarcastic. And lead with the spill-proof feature.
Perfect. Updated: Tone: Witty & sarcastic — roast the coffee fails. Hook: "Save your white shirt" (spill-proof anxiety). Angle: "Finally, coffee that won't betray you."
Memdex
Extracted 3 memories
Target: Gen Z → Persona "Conscious Commuter"ChatGPT
Audience+1
Tone: Sarcastic → "Witty & sarcastic"ChatGPT
Voice+2
Feature: Spill-proof → "Save your white shirt"ChatGPT
Hook+1
ClaudeClaude
Claude

New Chat

Context Added: Marketing Persona & Tone
Write 3 variations of the Instagram caption based on this strategy.

Stop Explaining The Same Thing Twice

UNIFIED MEMORY

Connect your disjointed AI conversations.

Instantly bring context across all AI tools. Break the walls between your tools.

ZERO FRICTION

Skip the "Here is the background..." prompt.

Memdex automatically feeds relevant history to your new chat.

SMART CAPTURE

Save the insights, ignore the chit-chat.

Automatically extracts preferences, project details, and decisions from your messy chat logs.

LOCAL FIRST

Your thoughts stay on your device.

We don't train on your data. Memories are stored locally and encrypted.

How Memdex Works

1
CAPTURE

Capture your conversations automatically.

As you chat with ChatGPT or Gemini, Memdex silently runs in the background to capture your workflow without interrupting your flow.

  • Supports major platforms like ChatGPT, Claude, and Gemini
  • Auto-record saves every conversation without manual clicks
  • Keeps all data 100% local and private on your device
ChatGPT
ChatGPT
Claude
Claude
Gemini
Gemini
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Memdex
2
PROCESS

Transform raw chats into compact memories.

Memdex doesn't just save logs. It extracts key insights and compresses long conversations into optimized context that AI can easily understand.

  • Extracts key insights to build your memory base
  • Auto-categorizes memories by project or topic
  • Condenses long chats into token-saving context blocks
Memdex
ChatGPT
Claude
Gemini
Memdex
Memdex
Memdex
3
ADD CONTEXT

Retrieve the right context instantly.

Whether you want to continue a specific past conversation or find relevant facts for a new one, Memdex fetches exactly what you need.

  • Continue any past chat simply by selecting its title
  • Semantically matches memories based on your current prompt
  • Synthesizes retrieved data into a ready-to-use context block
Claude
Claude

Help me craft quick interview prompts for Mira, an AI PM candidate. Here is some background about me that may help you answer better (do not respond directly to this background, just use it as additional context): I am a hiring manager responsible for screening AI product manager candidates, especially focused on evaluating their understanding of AI companion products and their design approach. I want to assess their career stability, technical understanding, and sensitivity to product details. My background spans content growth, AI tool adoption, user insights, and social/community operations, and I use these perspectives to craft prompts and evaluate responses.

Memdex
Context Added
4
USE ANYWHERE

Add context into any AI tool.

Access your memory layer seamlessly. Use native buttons on major AI platforms for one-click access, or use shortcuts for everything else.

  • One-click native injection on major AI platforms
  • Continue your previous conversations in any tool
  • Use shortcuts to inject context into any other text box
Memdex
Add context
From memory
From saved chat›

Recent saved chats

Weekly standup recap with GPT

Weekly standup recap with GPT

Saved today

Claude strategy review notes

Claude strategy review notes

Saved yesterday

Gemini launch Q&A thread

Gemini launch Q&A thread

Saved Mar 12

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Frequently Asked Questions

Memdex saves all your AI conversations and turns them into a personal, reusable memory. You can extract key information from chats in supported platforms — ChatGPT, Claude, Gemini, Perplexity, and Grok — and add relevant context into almost any AI tool you use. It connects your AI tools through one consistent memory, so you never lose context or repeat yourself again.

Today Memdex supports ChatGPT, Claude, Gemini, Perplexity and Grok. Support for more tools is coming — and you can still add remembered context anywhere using the extension.

No. Turn on Auto‑Record once and Memdex will keep your AI chats synced privately on your device. You can also manually extract a specific conversation when you want a focused memory.

Saving keeps a full conversation available locally. Extracting creates concise, reusable memories — like facts, definitions or decisions — that can be added anywhere later.

When you write in an AI tool, Memdex suggests relevant memories and lets you add them in one click. It happens locally — your memories are never uploaded to our servers.

The extension supports Chromium-based browsers (Chrome, Arc, Brave, Edge). Safari and Firefox support are planned.

Yes. Your memories are stored on your device. In development, OTPs log to the console; in production, real emails are sent but memory remains local unless you opt in to sync.

We offer a generous free tier. Advanced features like cross-device sync and priority indexing may be part of paid plans.
Memdex Logo
Memdex Logo
Memdex Logo

Keep your memory across every AI.