CtxPort is a Chrome extension designed to streamline the process of copying AI chat conversations from platforms such as ChatGPT, Claude, Gemini, DeepSeek, Grok, Doubao, and GitHub Copilot. It addresses the common problem of transferring conversations between AI tools, where traditional copy-paste methods often result in broken formatting, HTML residue, and lost context. By enabling users to copy entire conversations as clean, structured Markdown Context Bundles, CtxPort helps maintain formatting, metadata, and code syntax, making the content ready for pasting into any AI tool, editor, or note-taking application.
The extension offers several features to enhance workflow efficiency. Users can copy conversations directly from within the chat using a one-click copy button or utilize a sidebar list to copy chats without opening them. A keyboard shortcut (Alt+Shift+C) provides instant copying of the current conversation. CtxPort outputs structured Markdown files that include YAML frontmatter metadata, such as title, source, platform, timestamp, and message count. Multiple copy formats are available, including full conversations with all messages and metadata, user-only messages, code-only snippets, and a compact mode without frontmatter for quick notes. This flexibility allows users to choose the format best suited to their needs, whether for context migration, re-prompting, or extracting code.
Privacy and security are emphasized in CtxPort’s design. The extension requires no account or sign-up, processes all data locally within the browser, and does not upload any information to external servers. It operates fully offline after installation and requests only minimal permissions limited to supported AI platform domains. CtxPort is open source and released under the MIT License, allowing users to review its code on GitHub.
Installation involves downloading the extension from GitHub Releases and loading it as an unpacked extension in Chrome. CtxPort is positioned as a tool for users who need to migrate, archive, or share AI chat conversations efficiently and securely across multiple platforms.
ctxport sits in PulseGate's Browser DevTools & extensions category. It focuses on transferring AI chat conversations between platforms without losing formatting or context. ctxport is a consumer product aimed at AI users and researchers. ctxport is free to use. It runs on the web.
Xiaoming Lab builds and maintains ctxport, and the product first shipped in 2026. The project is developed in the open on GitHub with 495 stars. Among its 6 catalogued features are one-click copy, Structured Markdown export, and AI conversation migration. The interface is available in English and Chinese.
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