A template for emergency information websites

Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.

Remove unused CSS

A kinetic pattern library that captured and preserved delightful iOS animations.

Keep your bundle size in check

🏋️ Find out the cost of adding a new frontend dependency to your project

Demos for Adaptive Loading - differentially deliver fast, lighter experiences for users on slow networks & devices