Show HN: Chat Capsule – Convert ChatGPT Chats to Markdown (For Notion, etc.) (opens in new tab)

I built Chat Capsule because I wanted to export my ChatGPT conversations in plain-text Markdown, so I can import them to Notion, or take the history over to Claude in the future.

It's as simple as that:

  * Get your data export from ChatGPT
  * Drag-and-drop the ZIP (or just conversations.json) you download from ChatGPT
  * Parsing happens client-side only, so none of your confidential conversations leave your machine
  * Download each thread individually, or all of them as a ZIP file

First 100 users get it for free with the code SUMMERDAY100.