key: puppeteer
title: Puppeteer
description: >-
  Headless Chromium browser. Required to export pages as PDF and to render content elements on the
  server, such as Mermaid or PlantUML diagrams. Installing it downloads a Chromium build of a few
  hundred megabytes, unless the server already provides one through PUPPETEER_EXECUTABLE_PATH.
website: 'https://pptr.dev'
detect:
  type: module
  value: puppeteer
architectures:
  - x64
  - arm64
# Not a declared dependency of the backend, unlike Sharp: a browser is worth a few hundred megabytes
# only to an instance that renders pages on the server, so installing it is a decision rather than a
# default. That makes this a real first install and not merely a repair.
isInstallable: true
# The version installed, here rather than in `package.json` for the reason above. The Docker image
# reads this same line, so an image and a hand-installed instance agree on what Puppeteer is.
installVersion: 25.4.0