Available for Chrome & Firefox

Export your ChatGPT conversations

Save a ChatGPT conversation as Markdown, HTML, or JSON from Chrome or Firefox. File exports are created locally in your browser. Free and open source; no Capsula account required.

Get for Chrome Get for Firefox See it in action Source Code

One-click export

Save any conversation instantly in your preferred format

Local file exports

Create a file in your browser without uploading it to a Capsula server

Clean output

Export code blocks, headings, and conversation structure

Your conversations stay yours

Local downloads do not require a Capsula server. Online integrations are optional.

No tracking

Zero analytics or telemetry

Local downloads

Runs entirely in your browser

No Capsula account

Use it with a conversation you can access in ChatGPT

What is Capsula?

Capsula is a free, open-source browser extension that exports ChatGPT conversations as Markdown, HTML, or JSON files. File conversion runs in your browser. You do not need a separate Capsula account to download an export. Version 1.5.0 is available for Chrome (via Chrome Web Store) and Firefox (via Mozilla Add-ons).

How do I export a ChatGPT conversation to Markdown?

Install Capsula from the Chrome Web Store or Firefox Add-ons.
Open chatgpt.com and navigate to the conversation you want to save.
Click the Capsula icon in your browser toolbar. A small panel appears.
Choose your format: Markdown (for editing and notes), HTML (styled, readable in any browser), or JSON (raw structure for scripting or archiving).
Choose the file download option to save the export to your device.

Code blocks, headers, and bold text are preserved in the Markdown output. To edit it, open the .md file in MDE and switch between source and formatted text.

Is Capsula private — does it send my data anywhere?

A file export reads the open conversation, converts it in your browser, and saves it to your device. Optional GitHub or Notion integrations, when enabled, send the selected content to that service. ChatGPT itself remains an online service. See the source and integration documentation for the available options.