273 Free React UI Components 2026 — No npm Install ProofMatcher offers 273+ free React components — copy-paste JSX, no package install, no config, no version conflicts. Why Use Copy-Paste React Components? Zero added dependencies — keeps your bundle lean Full control over styles — edit anything directly Works with Vite, Next.js, CRA, Remix, Astro No breaking changes when a library updates No @layer conflicts or specificity wars React Toggle Switch const Toggle = ({ on , setOn }) => ( < div onClick = { () => setOn ( ! on ) } style = { { width : 52 , height : 28 , background : on ? ' #e53e3e ' : ' #3a3a3a ' , borderRadius : 14 , cursor : ' pointer ' , position : ' relative ' , transition : ' background .25s ' } } > < div style = { { position : ' absolute ' , top : 3 , left : on ?…