AI chatbot for conversation, work, research, coding, and content creation.
ContxtAI
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About ContxtAI
ContxtAI is a browser extension that acts as a portable memory layer for AI applications. It allows users to create and switch between profiles containing personal rules, preferences, and context that can be injected into AI chat interfaces such as ChatGPT, Claude, and Gemini. The tool is designed to eliminate the need to repeatedly explain background information, writing styles, technical requirements, or other context in every new conversation. Profiles can be customized for different roles like writers, students, developers, or marketers, ensuring consistent AI interactions across tasks. ContxtAI operates entirely locally, storing all data in the user’s browser without requiring accounts or sending information to external servers. It includes features like a context thermometer to track memory usage, a privacy scrubber to remove sensitive data, and warnings when AI conversation length risks forgetting initial rules. The extension is open source and free to use.
Key features
- Create and manage multiple switchable profiles
- One-click context injection into AI chat interfaces
- Context thermometer to track memory usage
- Privacy scrubber to detect and hide sensitive data
- Context fade warning to alert when AI may forget initial rules
- Local storage with no accounts or tracking
- Open source and free to use
- Auto-distillation to save learned rules from successful chats
Use cases
- Maintaining consistent writing style and brand voice across AI interactions
- Storing assignment rules and learning preferences for students
- Carrying coding standards and project architecture into AI development sessions
Pros
- Local-first privacy with no server storage
- Cross-platform support for multiple AI tools
- Switchable profiles for different roles or contexts
- Context budget tracking to monitor AI memory limits
- Privacy scrubber to remove sensitive information automatically
Cons
- Limited to Chromium-based browsers (Chrome, Brave, Edge, Arc)
- No support for Firefox or other browsers currently
- Supports only ChatGPT, Claude, and Gemini with others in development
Frequently asked questions about ContxtAI
Is my data really private when using ContxtAI?
Yes. ContxtAI stores all data locally in the user’s browser using Chrome’s built-in storage, ensuring profiles, rules, and context never leave the device. There are no external servers, accounts, or tracking involved.
Is ContxtAI completely free to use?
Yes, ContxtAI is 100% free and open source. There are no premium tiers, usage limits, or hidden costs, and the full source code is available on GitHub for inspection or contribution.
Which AI tools does ContxtAI currently support?
ContxtAI supports ChatGPT, Claude, and Gemini, with additional platforms being added regularly. Support for new tools can be contributed by the community due to its open-source nature.
How is ContxtAI different from ChatGPT's built-in Memory feature?
Unlike ChatGPT Memory, which is restricted to ChatGPT and stored on OpenAI’s servers, ContxtAI is portable across multiple AI platforms, fully local, and allows users to switch between customizable profiles with complete control over what is remembered.
Does ContxtAI work on browsers other than Chrome?
ContxtAI is currently built for Chromium-based browsers like Chrome, Brave, Edge, and Arc. Firefox support is planned for the future, and contributions to add it are welcome.
How do I get started with ContxtAI?
Users can install ContxtAI as a browser extension from the Chrome Web Store, create custom profiles with their rules and preferences, and then inject the selected context into AI chat interfaces like ChatGPT or Claude with a single click.
