pageres-cli

The tool runs from the command line and creates raster screenshots of web pages at specified pixel dimensions. Users provide one or more URLs (or local HTML files) together with one or more resolutions, and the program produces an image for each URL‑resolution pair, saving the files in the current working directory. It supports common options such as cropping to the set height, delaying capture, selecting a specific DOM element, hiding elements, applying custom CSS, and setting cookies, headers, authentication, scaling, format, user‑agent, or transparent background.

Typical use cases include checking responsive design across multiple screen sizes, generating visual assets for documentation, or capturing particular page sections. The CLI can process many pages and sizes in parallel, allowing hundreds of screenshots to be produced in a short time. It is distributed via npm, runs on systems with a Chromium‑based browser sandbox, and mirrors the functionality of the underlying pageres library without exposing a programmatic API.