Accel leads $12.5m series A for open-source startup VoidZero
- ByStartupStory | October 30, 2025
Accel has led a $12.5 million Series A funding round for VoidZero, an open-source startup focused on creating a next-generation unified JavaScript toolchain. Founded by Evan You, the creator of the popular frontend framework Vue.js and the build tool Vite, VoidZero aims to address fragmentation in JavaScript development by offering a high-performance, composable, and runtime-agnostic toolset for developers.
This funding round will accelerate VoidZero’s commercial release of its toolchain platform, Vite+, and support the company’s plans to expand its engineering team and deepen investments in innovative open-source projects. Since the launch of Vite in 2020, which quickly grew to over 15 million weekly downloads on npm, VoidZero has been building essential infrastructure for the modern JavaScript ecosystem.
VoidZero’s toolchain integrates powerful technologies like Rolldown (an extremely fast bundler), Oxc (a highly efficient parser, resolver, transformer, and linter), and Vitest (a testing framework), providing developers with a seamless and efficient development experience.
Accel’s investment underscores confidence in Evan’s vision and the rising demand for better tools in web development, as JavaScript continues to power everything from web and mobile apps to server-side and edge applications. The Series A funding positions VoidZero to accelerate innovation and impact the ways millions of developers worldwide build applications.
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