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is-progressive-cli

v3.0.0

Published

Check if JPEG images are progressive

Downloads

15

Vulnerabilities

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Links

Git

Maintainers

sindresorhussindresorhus

Keywords

cli-appclijpgjpegprogressivefileimageimgpicpicturephotodetectcheckisexifbufferstreamfs

Readme

is-progressive-cli

Check if JPEG images are progressive

Can be useful to make sure your images are progressive, which is important for performance:

Progressive JPEGs are better because they are faster. Appearing faster is being faster, and perceived speed is more important that actual speed. - Progressive JPEGs: a new best practice

The check is fast as it only reads a small part of the file.

Install

npm install --global is-progressive-cli

Usage

$ is-progressive --help

  Usage
    $ is-progressive <file> ...
    $ is-progressive < <file>

  Example
    $ is-progressive baseline.jpg progressive.jpg
    ✖ baseline.jpg
    ✔ progressive.jpg
Globbing

You can use globs too if your shell supports that.

is-progressive *.jpg

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