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Building performant tools doesn't happen by accident. They need a strong foundation! @rolldown.rs and @vite.dev 8 are powered by Oxc for that reason We've evaluated all previous PRs that went into the Oxidation compiler, 290 of them improving performance This is what foundational work looks like!

⚡ Speaker highlight: Matias "Patak" Capeletto, @vite.dev Core Team We are looking forward to have the one and only @patak.dev back on stage! If you've seen the last online ViteConfs or have been around in the community, there is no way you missed him. Get ready for some deep insights! 🧠

We are thinking about supporting Standard Schema in Vitest natively. What do you think? github.com/vitest-dev/v...

⚡ Speaker highlight: Jim Dummet, Core Team at Oxc As a JS Dev, every tool seems to be rewritten in Rust. But If our tools migrate to another language, will we be ale to customize them? Jim explains how Oxc plans to allow customization via JS plugins, all while maintaining exceptional performance!

⚡ Panel highlight: Future of Web Development This panel is a deep dive with creators and industry leaders to discuss the biggest trends, challenges, and opportunities in web dev. What do YOU want them to talk about? Drop your questions in the comments below make sure we cover what matters most!

What's new in ViteLand? Our August 2025 recap is out 👣 Big steps for Oxlint: Type-aware linting preview & custom JS plugins roadmap 🖼️ @vitest.dev has visual regression support in beta ⏩ Native plugins enabled by default in rolldown-vite 🤌 Smaller bundles due to @rolldown.rs and Oxc 👀 and more

I keep hearing stories from people who use agents to solve a dozen hard problems before breakfast and I just cannot reconcile it with my own experience. I have to conclude they are simply deluded? I'm sure from their perspective it's just a skill issue

Vitest 4 runs simple test files faster! You can already check it out by installing Vitest 4 beta. On average, Vitest now takes 25% less time to start the test. Due to parallelisation, the overall time difference can vary. We are focusing our efforts on improving the time even more in the next beta!

PLAID Moved to @rolldown.rs & Cut Build Times by 97% PLAID was using Rollup for server-side bundling, which could take up to 20s to complete each time! The team wanted to reduce wait times. Learn why the PLAID team migrated to Rolldown. voidzero.dev/posts/case-s...

⚡ Speaker highlight: Vladimir Sheremet, Core Maintainer of @vitest.dev The State of Vitest is a must-see! @erus.dev will give us the news on the most interesting testing framework, covering the latest features, performance boosts, and what's next for the @vite.dev powered testing experience

I’ve spent all season analyzing why @gamechangershow.bsky.social is the best of the best, and it shouldn’t be a surprise that talking to @samreich.bsky.social about it made everything click into place. My latest feature for @slashfilm.bsky.social. www.slashfilm.com/1937119/best...

Legendary use case for Claude Code I’ve just heard: “It managed to uninstall all Adobe products from my Mac by telling Claude Code to do this. Toon a bunch of tokens but was worth it.” (Iykyk)

Remember how @gitlab.com got 2.6x faster builds and ~100x less memory consumption when using @rolldown.rs? Now, with all the native plugins enabled, they are down to 22s. That is ~7x faster than Vite, ~half the time compared to using native resolver before and 43x faster than their webpack build 🔥

`oxlint --type-aware`. Mic drop. It's incomplete and have numerous problems, including a noticeable performance issue. BUT, you can finally see your floating promises quickly! Example PR: github.com/rolldown/rol... Problems: t.co/K7ZVnPjOPL

Vite 7.1 is out! ⚡

And subscribe to the @cultrepo.bsky.social YouTube channel youtube.com/@cultrepo! They are building such an amazing library of open source stories

What's new in ViteLand? Our July 2025 recap is out. 🎉 Announcing 1st in-person @viteconf.org in Amsterdam 📈 @vite.dev surpassing webpack's downloads ⏩ Major performance boosts for @rolldown.rs 🔥 Type-aware linting & custom rules for Oxlint 👀 and more Read the post: voidzero.dev/posts/whats-...

Vite: The Documentary premieres October 9th at @viteconf.org in Amsterdam ⚡ youtu.be/46fe5AFc0tY

Totally missed this 🙃 Proud to have helped bring visual regression testing to a tool I use daily, and even more so because it started from something I needed as a user 🙌🏼 And thanks to @erus.dev for the support along the way 💚

Node excitement 😉 Congrats to @marcoippolito.dev on today's landmark Node 22.18 release. It is the first LTS release to ship unflagged TypeScript support 🎉 This means Node can run *.ts files. It pairs well with TypeScript's "erasableSyntaxOnly" flag 👍 Many folk contributed 🙏

What a milestone! For the first time in history, weekly NPM downloads for @vite.dev surpassed Webpack's weekly download numbers.

i shudder to think about how many human lifespans have been spent debugging / vs \ in file paths

Built-in Visual Regression testing comes to Vitest in the next major release! Thank you, @macarie.blue for working on this feature 👏 main.vitest.dev/guide/browse...

Been seeing an uptick in what are clearly vibe-coded PRs. On the surface this seems great -- more contributors! But in the reality it's often AI slop that the person hasn't reviewed and instead the burden of review is on us, the maintainers -- which is a horrible trade.

Vitest Browser Mode reached almost 1.2 million weekly downloads 😮 Last time I checked it was 200k 🫣

Oxlint is making a huge step forward! Two new updates: JS custom rules, with ESLint compatible API are on the way. The first prototype gives a good speedup already! 🔥 Type-aware rules. Full coverage no-floating-promise through tsgolint, integrated like the other oxlint rules and extremely fast.

even by HN standards this is an all-timer

Come check it out 🙌 storybook has done some great work, looking forward to chatting about it

More people need to understand that most open source maintainers would move mountains for you if only you: 1. Are friendly and not entitled 2. Showed interest in helping however you can 3. Communicate your request clearly 4. Are respectful of their time (be brief/responsive) These cost you nothing

⚡️ Vite 7.0 is out! - Browser Target Changed to Baseline Widely Available - Node 18 support dropped. Vite is now distributed as ESM only - And feats, fixes, and cleanups, while we prepare for rolldown!

Wow!! @vitest.dev Browser mode is GOATED!! I moved all my test suite from playwright test to vitest browser, and things became a helluva lot simpler. Requirements: - Interactive draggability test - Cross browser testing Thread 👇

I declined a $1,000/month ESLint sponsorship from a pay-for-follows company. That's not the type of sponsor we want. It's frustrating that these types of companies (as well as online casinos) are more willing to sponsor ESLint than tech companies where ESLint is used.

🛬 Plane lands. Flight mode off. 💬 Welcome to Italy! Use your mobile plan like at home. 8 years of free EU roaming – we've come a long way: 2000s: €0.50-€1/min calls 2007: roaming caps 2017: end of charges 2022: "Roam like at home" extended to 2032 Fair for operators. Free for you.

Anyone knows of any good Vitest monorepo examples?

I cannot thank @patak.dev enough for joining me for this episode! We barely knew each other before, so I very much appreciate him taking the time to do this but also the general trust and support!

Oxlint is 1.0!

We've added new coverage provider comparison page on Vitest documentation. This guide describes the lower level differences between Istanbul and V8. It should help users choosing which provider to use. vitest.dev/guide/covera...

Storybook 9 is here! ▶️ Interaction tests ♿ Accessibility tests 👁️ Visual tests 🛡️ Coverage reports 🚥 Test widget 🪶 48% Leaner ✍️ Story generation 🏷️ Tag-based organization 🌐 Story globals 🏗️ Major updates for Svelte, Next.js, React Native, and more! Let’s dive in!

🤯 each @vitest.dev release is spot-on on pain points. The low latency between the pain points appearing in the community and the solution landing in Vitest is outstanding

This is one of the biggest releases we ever did!

Pop Culture Detective is a fantastic YouTube channel that puts out amazing content breaking down culture and pop media. Every video challenges my beliefs and makes me think in new ways. youtu.be/kpvpadX5mwM?...

Today we are excited to announce Rolldown-Vite: a technical preview of the version of @vite.dev entirely powered by the Rust stack we built over the past year (Oxc + @rolldown.rs) voidzero.dev/posts/announ...

As of today, Elon Musk is thought to be responsible for the death of 300,000 adults and kids due to the illegal closure of USAID (source: www.impactcounter.com/dashboard?vi...) That's a 103 deaths per hour, each day. And it will get worse. His legacy is one of death, destruction, and failure.

The results of our latest Eurobarometer are in. Europe remains engaged, optimistic, and united! ⬇️

@patak.dev's talk from Svelte Summit Spring 2025 is now also available on YouTube — The shared story of Vite and Svelte. www.youtube.com/watch?v=bpj3...

At Preact we love real-browser testing, our whole test suite ran in karma for the last few years. Recently we switched over to @vitest.dev and we absolutely love it, we love it so much that we published vitest-browser-preact. It's a library that contains tools to test Preact in vitest browser mode.

📺 Webinar: Behind the scenes of Storybook Test Learn how the maintainers of Vitest + Storybook built a new workflow for running interaction, visual, and a11y tests—in a real browser, with instant feedback, right inside Storybook. 👇 Register below

I migrated from @testing-library/svelte to vitest-browser-svelte and blogged about it: scottspence.com/posts/migrat...

i really am trying to keep an open mind with this stuff! every now and then i think 'this is a simple, obvious task that requires no domain-specific knowledge or reasoning ability, surely "AI" can save me a few minutes here' and it just completely disgraces itself. clearly i'm missing something