Read about Million Lint 1.0-rc

Speed up your
website by 70

Identify and fix slow code–in minutes, not months.

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Analyze
Fix
⚠️Poor INP(-ms)
function SearchInput({ messages }) {
  const [filter, setFilter] = useState("");
  return (
    <>
      <input value={filter} onChange={(e) => setFilter(e.target.value)} />
      {messages
        .filter((message) => message.includes(filter))
        .map((message, idx) => (
          <div key={idx}>{message}</div>
        ))}
    </>
  );
}
49
INP
78
FCP
89
LCP
UserList×3403(141ms)
ProductPanel×67(66ms)
Chat×99(17ms)
StockPanel×75(9ms)
Typography×19
Dialog×8
Button×21
Accordion×6
Switch×2
Tooltip×8

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What's in Million?

Everything you need to optimize your React website.

Find slow code, fast

Quickly find the slowest components in your app.

Inline renders

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Lightweight

Best in class performance: <4kB gzipped and <1% of JS execution time.

Optimizing Compiler

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Replay

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