The portable memory layer that carries your conversation context across AI applications so you won't repeat it again and again.
Works seamlessly with your favorite AI tools
Every new chat starts from zero. You waste time constantly re-explaining who you are and what you need.
Whether you're writing, studying, coding, or marketing — ContxtAI keeps your AI conversations sharp and personalized.
Keep your tone, style guide, and audience context consistent across every AI chat — no more re-explaining your voice.
Save your assignment rules, course syllabus details, and learning preferences once. Reuse them in every new study session.
Carry your tech stack, coding standards, and project architecture into every AI conversation automatically.
Maintain brand voice, campaign briefs, and target audience details so your AI-generated content is always on-brand.
Everything you need to manage your AI identity in one place.
ContxtAI acts as a bridge. It injects your preferences seamlessly into ChatGPT, Claude, and Gemini so you don't have to.
Had a great chat where the AI finally understood your style? Save those rules with one click to reuse them forever.
Your personal data never leaves your computer. ContxtAI detects and hides sensitive information like passwords before sending it to the AI.
Keep your AI on track. ContxtAI gives you a visual memory budget, ensuring you know exactly how much information the AI can remember at once.
AIs tend to forget things in long conversations. ContxtAI tracks your chat length and warns you when the AI starts forgetting your initial rules.
See why ContxtAI is the smarter choice for managing your AI context.
| Feature | ContxtAI | ChatGPT Memory | Manual Copy-Paste |
|---|---|---|---|
| Works across AI platforms | ✓ | ✗ | ✓ |
| Data stays on your device | ✓ | ✗ | ✓ |
| One-click context injection | ✓ | ✗ | ✗ |
| Multiple profiles / personas | ✓ | ✗ | ✗ |
| Context budget tracking | ✓ | ✗ | ✗ |
| Sensitive data scrubbing | ✓ | ✗ | ✗ |
| 100% Free | ✓ | ✓ | ✓ |
Create profiles like "Copywriter", "Student", or "Fitness Coach". Add your personal rules and preferences.
Open the ContxtAI popup in your browser and select the active profile you need for the current task.
Click "Inject" on ChatGPT, Claude, or Gemini. The extension drops your rules right into the chat box.
100% Free. Open Source. Local-First Privacy.
ContxtAI is built by developers, for developers. We are on a mission to keep AI context portable and out of walled gardens. Whether you're fixing a typo, adding support for a new AI platform, or optimizing our React codebase—your commits matter.
Got questions? We've got answers.
Absolutely. ContxtAI stores everything locally in your browser using Chrome's built-in storage. Your profiles, rules, and context never leave your device — there are no servers, no accounts, and no tracking.
Yes, 100% free and open source. There are no premium tiers, no usage limits, and no hidden costs. The full source code is available on GitHub for anyone to inspect, modify, or contribute to.
ContxtAI currently supports ChatGPT, Claude, and Gemini — with more platforms being added regularly. Because it's open source, anyone can add support for new AI tools.
ChatGPT Memory is locked to ChatGPT only, stored on OpenAI's servers, and you have no control over what it remembers. ContxtAI is portable (works on any AI platform), fully local (your data stays on your device), and gives you complete control with switchable profiles.
ContxtAI is currently built for Chromium-based browsers (Chrome, Brave, Edge, Arc). Firefox support is on the roadmap — contributions are welcome!
Deep dives into AI context, memory management, and open-source building.
Explore why user-owned AI memory is critical for the future of productivity, privacy, and reducing vendor lock-in.
Discover how proprietary AI memory features trap your data and workflows, and why an independent memory layer is the solution.
A deep dive into the architecture of ContxtAI and how we securely manage AI memory locally in your browser.
A technical deep-dive into reverse-engineering React state and ProseMirror to safely inject text into modern AI interfaces.
Understand how LLM context windows work, the 'lost in the middle' phenomenon, and how to optimize your token budgets.
Discover why the ability to move your AI context between different tools is essential for maintaining productivity in a fragmented AI ecosystem.
Explore the challenges and immense benefits of building AI developer tools that rely strictly on local storage and processing.
A personal journey into the development of ContxtAI, the challenges faced, and the vision for an open-source memory layer.