Tables & Data Grids

Headless / lightweight

• ★ TanStack Table — headless, framework-agnostic (React, Vue, Solid, Svelte, Angular, Lit). The default for tables in React. Pair with shadcn/ui's Table primitives.
• react-table-library — themed wrapper around table primitives.

Full-featured grids (free tier or open source)

• AG Grid Community — the gold standard for big data grids. Community is MIT; Enterprise (pivot, master/detail, etc.) is paid.
• MUI X Data Grid — community version is MIT, Pro / Premium paid. Tight MUI integration.
• Handsontable — spreadsheet-style; non-commercial license is free, commercial requires payment.
• RevoGrid — open-source virtualized grid, very fast.
• Glide Data Grid — open-source, canvas-rendered, scales to millions of cells.

Spreadsheet-like

• Univer — full open-source spreadsheet engine (Excel-compatible formulas).
• x-spreadsheet — older but still works.
• luckysheet — open-source spreadsheet UI.

Pick this if…

• Default React table: TanStack Table + shadcn primitives.
• Big-data grid, free is fine: AG Grid Community or Glide Data Grid.
• Excel-style spreadsheet UI: Univer.