Local-first ChatGPT export

Keep the parts of a ChatGPT conversation that matter.

Select individual prompts and answers, copy or download clean Markdown for free, or export searchable PDF files and PNG images with ChatMark Pro. Conversation content is processed locally in your browser.

One conversation, your selection

Export only what you choose

Private ChatGPT conversation

Selected messages

MarkdownPDFPNG

Copying and downloading Markdown stays free. PDF and PNG share one three-day trial.

Choose individual prompts and answersPreserve Markdown, code, tables, links, and formulasProcess conversation content locally in the browser

A focused exporter

A full conversation is rarely the file you actually need.

ChatMark turns a private ChatGPT thread into a deliberate document instead of a noisy copy of the page.

Long chats contain detours
Select only the messages worth keeping instead of exporting every branch and correction.
Web pages are poor archives
Copy or save editable Markdown, searchable PDF files, or PNG images for use outside ChatGPT.
Private content deserves restraint
Exports are generated locally; ChatMark does not upload the conversation to its membership service.

Three simple steps

From conversation to a useful file

Open a private ChatGPT conversation and keep control over every exported message.

ChatMark demo: open the extension sidebar in ChatGPT and copy the conversation as Markdown.
See it in action: open ChatMark and copy Markdown.
01

Open ChatMark

Use the button beside ChatGPT's share action or the browser toolbar icon.

02

Choose messages

Select all, invert the selection, keep answers only, or choose messages one by one.

03

Export locally

Copy or download Markdown for free, or export searchable A4/Letter PDF files and PNG images with Pro.

Built for accurate exports

Preserve structure without copying the page

ChatMark reads the current conversation branch and produces files designed for editing, sharing, and archiving.

Local-first privacy
Conversation content and ChatGPT access tokens are not sent to ChatMark servers.
English and Chinese
The extension and website support English and Simplified Chinese.
Markdown stays free
Copy MD or download selected messages as Markdown without limits or a ChatMark account.
Searchable PDF
Pro uses the browser's print engine for selectable text, tables, code, formulas, and links.
Revocable device access
Link the extension without exposing website cookies or session tokens.
PNG image export
Pro exports selected messages as 960-pixel-wide PNG images. Choose Computer preview or Fewer images; long conversations split between complete question/reply pairs, with multiple images in a ZIP.

Free or Pro

Markdown stays free; upgrade for PDF and PNG

Copy and download Markdown for free. Pro adds document and image exports.

Free
Forever
Select messages, copy MD, or download Markdown for free.
  • Unlimited Markdown copying and downloads
  • Message selection controls
  • No ChatMark account required
Pro
PDF + PNG
Unlimited exports of searchable PDFs and PNG images on linked devices.
  • Everything in Free
  • A4 and Letter PDF
  • 960-pixel-wide PNG; ZIP for multiple images
  • Monthly, yearly, or lifetime access
  • Unlimited linked devices

Local content, scoped membership

Your conversation and your membership stay separate.

The extension processes conversation content locally. The website only handles accounts, billing, analytics consent, and revocable device entitlement.

Read the privacy policy

No conversation uploads

ChatMark membership APIs do not receive conversation text, exported files, or ChatGPT access tokens.

Scoped device credentials

The website stores only a SHA-256 device-key hash; the secret remains in browser-local storage.

Consent-based analytics

Google Analytics loads only after the visitor accepts optional analytics.

Frequently asked questions

Before you export

Turn the conversation into a file you control.

Install ChatMark, select the messages that matter, and export them locally.

Sign in