Corp.Vellum · browser extensions

Save any ChatGPT chat as a clean PDF.

CHATGPT.Vellum saves a ChatGPT conversation as a polished, print-ready PDF in one click, built entirely inside your browser. It is the first extension on the Corp.Vellum shelf, and more are on the way.

Add to Chrome - freeSee how it works
Free on the Chrome Web Store·No account·No daily limit
Planning a launch
2026-07-06
USER
How should I sequence the beta rollout, and can you show the activation math?
ASSISTANT
Roll out in three waves
Start with a private cohort, then widen access weekly. Track activation before you scale paid spend.
  • Week 1 - 50 hand-picked users
  • Week 2 - the waitlist, in batches
  • Week 3 - open, paid on
Reference render
Concept render
Fig. 1 - Concept render
Activation, formally
A = activatedsign‑ups × 100%
∫−∞∞ e−x² dx = π½
Cohort script
# pick the first cohort by score def cohort(users, n=50): return sorted(users, key=lambda u: -u.score)[:n]
Plans
PlanPriceLimit
Free$0Unlimited
Pro$6/moUnlimited
Team$5/seatUnlimited
Weekly activation
025507510087%ActivatedRetained · 7-dayW1W2W3W4W5W6
Fig. 2 - Activation by week
Saved to PDF
The shelf

One idea, a growing shelf.

Every Corp.Vellum extension does one job: save an AI chat as a clean PDF, right in your browser. Nothing is uploaded, no account, no daily limit. ChatGPT and Gemini are live now; Claude is on the way.

CHATGPT.Vellum icon
ChatGPT → PDF
Live
GEMINI.Vellum icon
Gemini → PDF
Live
CLAUDE.Vellum icon
Claude → PDF
Soon
Why Corp.Vellum

A document, not a screenshot.

Private by design

The conversation is read and rebuilt inside your browser. No server, no upload, no account. The text never leaves your machine.

Faithful formatting

Code blocks, tables, equations, images and non-Latin scripts survive intact, with a quiet header carrying the title and date.

No daily limit

Export as many chats as you like. Because the work runs locally, there is no cap like the 3-per-day free limit some exporters impose.

How it works

Three clicks to a clean PDF.

01

Open a conversation

Any AI chat, any length, from a quick question to a hundred-message project thread.

02

Press Save to PDF

The extension collects the messages and typesets them, then opens the browser print dialog with everything laid out.

03

Done

A polished PDF lands in your downloads. Share it, archive it, or print it.

Quick answers

Do my conversations get uploaded anywhere?

No. Every Corp.Vellum extension builds the PDF inside your browser, so no part of your conversation is sent to us or to anyone else. See the privacy promise.

Which chats can I save today?

ChatGPT and Gemini, as CHATGPT.Vellum and GEMINI.Vellum. Claude is on the way; the shelf above shows where each one stands.

Is there a daily limit?

No. Export as many chats as you like. Some free exporters cap you at 3 PDFs per day; Corp.Vellum extensions do not.

One shelf, one idea.

Every Corp.Vellum extension does one job and does it in your browser. None of your content is uploaded, no account, no daily limit. See them all in one place, and pick the one you need.