Warpdom

Warpdom is a DOM implementation for unit and component tests designed to be a drop-in replacement for jsdom, targeted at Vitest and Jest testing environments. It follows WHATWG specifications to give identical test results to jsdom while running faster—in tests, Warpdom has shown median speedups of about 1.27x to 1.54x over jsdom. It supports Vitest 2+ and Jest 27+, includes fast mode for additional speed gains, and adapts to the jsdom version used in your project to maintain compatibility.