Bun runtime now in Public Beta for Vercel Functions
Vercel Functions now supports the Bun JavaScript runtime in public beta as an alternative to Node.js. Users can choose between runtimes based on workload needs, with benchmarks showing 28% latency reduction for CPU-bound Next.js rendering. Bun integrates with Vercel's existing logging and observability systems and supports Next.js, Hono, Express, and Nitro frameworks with zero-config TypeScript support.
The Bun runtime is now available in Public Beta for Vercel Functions.
You can choose between Node.js and Bun as your project runtime, selecting the best option for your workload.
for CPU-bound Next.js rendering compared to Node.js.Benchmarks show Bun reduced average latency by 28%
To use Bun in Vercel Functions, set the runtime globally in your project's :vercel.json
We currently support the following frameworks, with more on the way:
Bun supports TypeScript with zero configuration. Here's an example with Hono:
Or get started with one of our starter templates:
Bun deployments automatically integrate with Vercel's existing logging, observability, and monitoring systems.
See , or .benchmarks in our blog postread the docs to learn more
Next.jsHonoExpressNitro
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