Angular Material Select
mat-select is a form control shipped in @angular/material (current: 22.0.4, MIT license, ~1.87M npm downloads/week as of July 2026), maintained by the Angular team at Google inside the angular/components monorepo, versioned in lockstep with Angular core (Material 22.x pairs with Angular 22). It renders its options panel inside a CDK Overlay (.cdk-overlay-container appended to document.body, outside the component's own DOM), which is why panelClass and the MAT_SELECT_CONFIG token's overlayPanelClass (added v11+) exist as workarounds for scoped CSS not reaching the panel. It implements the ARIA 1.2 combobox pattern (role="listbox" popup) and disallows nested interactive controls inside mat-option. It ships with zero built-in search/filter box — tracked as open GitHub issue angular/components#5697 for years — so the de facto fix is the community package ngx-mat-select-search (~162K npm downloads/week). Current version/status: 22.0.4 (July 2026). License: MIT. Maintained by Angular team at Google (angular/components monorepo).
Reach for mat-select when the control already lives in a mat-form-field and you need Material-consistent styling, checkbox multi-select, or custom option templates — not for a 5,000-row country picker on mobile. For large lists or mobile-first flows, use a plain native select instead: Angular's own docs literally say to "prefer a native select element over MatSelect" for accessibility and performance, and the default ripple animation on options adds measurable overhead on mobile (disableRipple is the escape hatch). Need search-within-select or toggle-all for multi=true? Don't hand-roll it — bolt on ngx-mat-select-search, since the Angular team has left #5697 unresolved for years. Honest weakness, straight from the maintainers: their own component is not the accessible default — the native control is. Known weakness: Angular Material's own documentation states you should "prefer a native select element over MatSelect" when possible, because the native control gives the most accessible experience across the widest range of platforms.