--- title: "Chromium Blog: JetStream 3: A modern benchmark for high-performance, compute-intensive Web applications" url: https://daily.dev/posts/chromium-blog-jetstream-3-a-modern-benchmark-for-high-performance-compute-intensive-web-applicati-xqgiwqbkp source_url: https://blog.chromium.org/2026/03/jetstream-3-a-modern-benchmark.html type: article source: "Chromium" published: 2026-03-31T19:22:43.411Z updated: 2026-03-31T19:23:56.757Z tags: ["javascript", "webassembly", "v8"] reading_time: 8 upvotes: 1 comments: 1 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Chromium Blog: JetStream 3: A modern benchmark for high-performance, compute-intensive Web applications **[Chromium](https://daily.dev/sources/chromium)** · 8 min read · 1 upvotes · 1 comments ## Summary JetStream 3 is a new browser benchmark developed collaboratively by Google, Apple, Mozilla, and other partners, replacing JetStream 2 from 2019. It focuses on computationally intensive web workloads including browser games, physics simulations, cryptography, and complex algorithms. A major update is the expanded WebAssembly coverage: 12 new Wasm workloads now cover toolchains including Rust, Kotlin/Wasm, Dart2wasm, J2CL, and .NET, with Wasm making up 15-20% of the suite (up from 7%). New JavaScript workloads cover real-world use cases like React SSR, TypeScript compilation, Babylon.js, Three.js, and MobX startup performance. The benchmark is designed to run in engine shells like V8's d8 for faster iteration, and uses a consensus governance model across all major browser vendors. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#javascript](https://daily.dev/tags/javascript), [#webassembly](https://daily.dev/tags/webassembly), [#v8](https://daily.dev/tags/v8) [View this post on daily.dev](https://daily.dev/posts/chromium-blog-jetstream-3-a-modern-benchmark-for-high-performance-compute-intensive-web-applicati-xqgiwqbkp)