Ctxport

Where Ctxport wins: it targets a specific, real workflow — getting a clean, structured copy of an AI conversation out of one tool and into another, or into your editor/notes. The Context Bundle format is the substance of the product: YAML frontmatter with title, source, url, timestamp, and message_count, then every message rendered as Markdown with fenced code blocks that keep their language tags and indentation. That last detail matters most to developers, who otherwise lose syntax highlighting and nesting every time they copy out of a chat window. The sidebar list copy is the feature that's genuinely hard to replace with manual effort: it lets you copy a conversation from the history list without opening it, which is the part of the job that makes bulk archiving tedious. The Alt+Shift+C shortcut and the in-chat copy button cover the single-conversation case. Four output formats (Full, User Only, Code Only, Compact) map cleanly onto four different jobs, and the User Only format is the one that's easy to overlook — it's exactly what you want to re-prompt a different model with your own questions rather than the previous model's answers. Privacy claims are unusually crisp and verifiable: no account, no sign-up, no email, 100% local processing, no servers, no cloud, no telemetry, minimal permissions limited to the supported AI platform domains, offline operation after install, MIT license with source on GitHub. Where it's weaker: distribution and scope. Installation is manual — download the ctxport-chrome-mv3.zip from GitHub Releases, unzip it, open chrome://extensions, enable Developer mode, and Load unpacked — which is a real barrier for non-developers used to one-click store installs. It's Chrome-only; there's no Firefox, Safari, or Edge build mentioned, no mobile or desktop app, and no cloud sync or backup, so if a conversation isn't copied out, it lives only in the platform. Coverage is limited to the chat interfaces of ChatGPT (chat.openai.com, chatgpt.com), Claude (claude.ai), Gemini (gemini.google.com), DeepSeek (chat.deepseek.com), Grok (grok.com), Doubao (www.doubao.com), and GitHub Copilot chat (github.com). It's a copy-and-export utility, not a knowledge manager: there's no search across your archive, no sharing or team workspace, no tagging, and no integrations with note apps. You're responsible for where the Markdown lands (your notes app, your repo, your IDE). There's also no API, and the product is a browser extension rather than a service, so anything that depends on a server-side step isn't in scope. Finally, it's maintained by one author (Jinming Yang) under an MIT license — good for transparency, but you're depending on a small project for compatibility when the supported platforms change their DOM. Where it fits: developers who pull code blocks out of AI chats into an IDE; power users who move context between ChatGPT, Claude, and Gemini; researchers and writers who want conversations archived as searchable Markdown files