Keep the parts of a ChatGPT conversation that matter.
Select individual prompts and answers, download clean Markdown for free, or create searchable PDF files with ChatMark Pro. Conversation content stays in your browser.
One conversation, your selection
Export only what you choose
Private ChatGPT conversation
Selected messages
Markdown stays free. New installs can try PDF for three days before choosing Pro.
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.
Three simple steps
From conversation to a useful file
Open a private ChatGPT conversation and keep control over every exported message.
Open ChatMark
Use the button beside ChatGPT's share action or the browser toolbar icon.
Choose messages
Select all, invert the selection, keep answers only, or choose messages one by one.
Export locally
Download Markdown for free or generate a searchable A4 or Letter PDF 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.
Free or Pro
Use Markdown forever; upgrade when PDF saves time
The free plan remains useful and the Pro boundary is one clear feature.
- Unlimited Markdown exports
- Message selection controls
- No ChatMark account required
- Everything in Free
- A4 and Letter PDF
- 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 policyNo 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