Local ChatGPT Exporter Userscript Downloads Full Conversations as Markdown, Under 40 KB
GhoulAngel_ · reddit · 2026-09-08
A developer released a Tampermonkey userscript that adds an Export button next to ChatGPT's Share button, downloading the entire conversation as a Markdown file — fully local, with no paid tier, no export limits, and no third-party service touching your chats.
Key details:
- Pulls real data from ChatGPT's backend API using the logged-in session, following the branch you're actually viewing even after edits/regenerations; falls back to scraping the rendered page if the backend route breaks.
- Main use case: working around the conversation-length cap — export the .md, start a new chat, upload it, and continue where you left off; also good for local backups or migrating chats to Claude/Gemini.
- Engineering: a single unminified JavaScript file under 40 KB, no build process, works across browsers via Tampermonkey/Violentmonkey/Greasemonkey; the UI is styled to feel native (loading state, hidden outside conversations).
- Published on Greasy Fork as "ChatGPT Conversation Exporter."
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