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lightningcss-cli
Advanced tools
Readme
An extremely fast CSS parser, transformer, and minifier written in Rust. Use it with Parcel, as a standalone library or CLI, or via a plugin with any other tool.
calc()
expressions where possible.color-mix()
functionlab(from purple calc(l * .8) a b)
lab()
, lch()
, oklab()
, and oklch()
colorscolor()
function supporting predefined color spaces such as display-p3
and xyz
rgb
and hsl
functionshwb()
color syntax#rgba
and #rrggbbaa
hex colors:not
with multiple arguments:lang
with multiple arguments:dir
:is
red 40% 80%
)clamp()
, round()
, rem()
, and mod()
math functionsplace-items
)overflow
shorthand@media (width <= 100px)
or @media (100px < width < 500px)
)display
property (e.g. inline flex
)system-ui
font family fallbacks@keyframes
names, grid lines/areas, @counter-style
names, etc.:local()
and :global()
selectorscomposes
propertyLightning CSS can be used from Parcel, as a standalone library from JavaScript or Rust, using a standalone CLI, or wrapped as a plugin within any other tool. See the Lightning CSS website for documentation.
$ node bench.js bootstrap-4.css
cssnano: 544.809ms
159636 bytes
esbuild: 17.199ms
160332 bytes
lightningcss: 4.16ms
143091 bytes
$ node bench.js animate.css
cssnano: 283.105ms
71723 bytes
esbuild: 11.858ms
72183 bytes
lightningcss: 1.973ms
23666 bytes
$ node bench.js tailwind.css
cssnano: 2.198s
1925626 bytes
esbuild: 107.668ms
1961642 bytes
lightningcss: 43.368ms
1824130 bytes
For more benchmarks comparing more tools and input, see here. Note that some of the tools shown perform unsafe optimizations that may change the behavior of the original CSS in favor of smaller file size. Lightning CSS does not do this – the output CSS should always behave identically to the input. Keep this in mind when comparing file sizes between tools.
FAQs
A CSS parser, transformer, and minifier written in Rust
The npm package lightningcss-cli receives a total of 1,145 weekly downloads. As such, lightningcss-cli popularity was classified as popular.
We found that lightningcss-cli demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
At Node Congress, Socket CEO Feross Aboukhadijeh uncovers the darker aspects of open source, where applications that rely heavily on third-party dependencies can be exploited in supply chain attacks.
Research
Security News
The Socket Research team found this npm package includes code for collecting sensitive developer information, including your operating system username, Git username, and Git email.
Security News
OpenJS is warning of social engineering takeovers targeting open source projects after receiving a credible attempt on the foundation.