React Flow

Verified 2026-10-04 against reactflow.dev, the xyflow repository and the current Pro pricing/FAQ page. Install @xyflow/react, import its stylesheet, and compose ReactFlow with node/edge state and controls. The core is MIT and commercial use does not require Pro. Pro offers examples/templates and support under separate terms; the FAQ allows use within the subscriber company and says downloaded Pro code can remain in projects after cancellation, while website access ends. Monthly USD prices are recorded below. The Yearly toggle shows USD149/month equivalent for Starter and USD269/month equivalent for Professional; annual totals and tax treatment were not separately confirmed, so no annual amount is invented. Svelte Flow is a separate package in the same repository, not React framework compatibility; retain this repository-family relationship during future deduplication. Editorial: a focused foundation for visual workflow/AI orchestration tools, not a general button/form kit. No accessibility audit performed.