SvelteKit 3 / Vite 8 will be built on rolldown. You can use it now if you're adventurous! If you're not using the new remote functions, it largely works without issue and is much faster. We'd love help in discovering any bugs that haven't been unearthed yet! Post them at github.com/vitejs/rolld...

apps.apple.com was rewritten in svelte ⚡🧡

Yes! Let's set the record straight. Biome has very little support for Svelte. It's marketing gone overboard. It has no Svelte-specific rules that I'm aware of. I don't think it will ever be a competitive offering. My eyes are on oxlint, which is working towards being able to run eslint-plugin-svelte

i rewrote a popular next.js site in svelte. before/after. <3 svelte

New Kickstarter just dropped. I'm tempted to get one to see how it compares to the electric treadmill I have at my desk. www.kickstarter.com/projects/981...

I rented a tiny home on Airbnb to work from for the day. This is so nice and such a break from having kids run into my office every two minutes! Now if only I could finish figuring out how to get web sockets working in my SvelteKit robotic teleop app!

I'm a bit pleased to learn that Cloudflare found SvelteKit to be nearly an order of magnitude faster than Next.js. We've invested in Svelte's speed, but not SvelteKit's, so I suspect there's still much more room for improvement.

lil' treat for all you weekend builders: Svelte now has an official MCP server, courtesy of resident bot wranglers @paolo.ricciuti.me and @khromov.se 🤖 it gives your LLM access to docs and compiler-driven diagnostics — give it a spin and let us know how you get on! svelte.dev/docs/mcp/ove...

The Svelte train is approaching 300km/h.

svelte.dev/packages is now live! It's a convenient and easily discoverable place to find a sampling of high quality packages in the ecosystem. We hope it will give confidence in the Svelte ecosystem to newcomers and help them get started more easily.

The Immich stable release is out today! It's an amazing self-hosted alternative to Google Photos and iCloud Photos. github.com/immich-app/i... github.com/immich-app/i... (bonus points: it happens to be written in SvelteKit 😄)

It took a bit of time, but @tanstack.com query now has support for @svelte.dev 5 🎉 Huge shoutout to @lachlancollins.bsky.social for working on this as well as the big blocker - versioning 🙈

SvelteKit has support for deploying to Cloudflare, Netlify, and dozens of other platforms www.sveltesociety.dev/packages?cat...

The State of JS 2025 Survey is out: survey.devographics.com/en-US/survey...

Every time I look at these graphs again it shocks me. www.realclimate.org/index.php/ar...

We recently rewrote the Intro to Storybook tutorial for Svelte, to use Svelte 5 and Svelte CSF everywhere! If there are any Svelte experts out there that want to take it for a spin and give feedback on the techniques used, that would be greatly appreciated! 🙏 @sveltesociety.dev

🗄️ modern-tar I just released a new zero dependency streaming tar parser and writer that is built with the browser-native Web Streams API! Please check it out! It's awesome 📼 github.com/ayuhito/mode...

Can `gpt-oss-20b` write svelte 5 code? By itself? No. With the draft and unfinished version of the Official MCP server? Hell yes! 😍 We're gonna solve Svelte + AI for good! opencode.ai/s/Y9TgsXtM

SvelteKit async SSR has landed! The future of Svelte is now here. Try it out along with the new remote functions! See the PR for some unfinished rough edges. Work continues on it while it's behind an experimental flag, but you can now play around with it! github.com/sveltejs/kit...

I made a submission to #Interop 2026 – the WebKit bug that results in a race condition with multiple top-level awaits in different modules: github.com/web-platform... We’ve talked about this one on here @rich-harris.dev and @jensimmons.bsky.social Let me know if I should add anything else?

I'm honestly hyped about how a still rudimentary Svelte MCP can improve the code of a model that ranked 47 on the bench enough that not only works, but it's actually decent code. Here's a visualization of all the steps with the suggestions from the MCP...very fascinating! Links in the next post! 🧡

svelte-check is now much faster for all Svelte users!!! 33% faster in this real world test case!!! Thanks @43081j.com for all your efforts to speed up Svelte as part of improving the JS ecosystem via @e18e.dev!

npm needs to enable bulk actions to keep us safe so that maintainers don't give up after hitting stuff like this

Svelte MCP server incoming!

A survey has been started in response to my browser interop submission to gauge interest in streaming of the fetch request body. If you would use it, if it were present in Firefox, this is your chance to express that! survey.alchemer.com/s3/8460326/F...

I just submitted a formal request for ReadableStream in fetch body as part of interop 2026 to make progress tracking of fetch requests work across browsers github.com/web-platform...

Went to test SvelteKit's new remote functions, damn it almost pulled me out of web dev burnout 🔥 It is something else!

Want to know what a better library for a piece of functionality is? Check out the e18e replacements directory which lists alternatives to bloated legacy npm packages

Bluesky posts about Svelte now appear in a #bluesky channel in the Svelte Discord to bring additional visibility to the discussions here. Thanks to @paolo.ricciuti.me for making this a reality! Lots of great discussions about new features such as await expressions, remote funcs, and open telemetry.

Should Svelte/Kit's new Remote Functions integrate form validation? There is a new proposal for it here: github.com/sveltejs/kit...

Who here is using Laravel + Svelte? Getting an increasing number of messages about Svelte stuff, trying to get a sense

OpenTelemetry tracing is live in SvelteKit! Huge s/o to @stracke.tech for all the help along the way. SvelteKit can now emit OTEL spans for all of its serverside constructs. It also provides an instrumentation file to easily set up trace exports. svelte.dev/blog/sveltek...

SvelteKit 3 will drop 17% of dependencies thanks to new APIs now available directly in Node. We could drop another 17% if Node were to add support for cookie parsing and serialization.

Good news from ESLint! The 10 years old parallel linting issue is finally resolved. Issue: github.com/eslint/eslin... PR: github.com/eslint/eslin...

My ahead-of-time JS engine Porffor eliminates JS cold starts on AWS Lambda. 12x faster and 2x cheaper than managed Node. Still very early but these results should speak for themselves :) goose.icu/lambda/

📈 Here are the SvelteBench results for gpt-5. Overall it places in 12th spot. However, it's a huge improvement over the other GPT models (last image), and seems like a decent choice for Svelte 5. Mini and Nano do not inherit the good scores. 😿 khromov.se/svelte-bench #svelte

Do I know anyone at GitHub? 👀 Our e18e sponsors account has been stuck pending for a few months now I think I know why but struggling to find a human to ask about it 😂

SvelteKit remote functions are now available under an experimental flag. Docs here: svelte.dev/docs/kit/rem...

URL references in SvelteKit are now type-checked to ensure the URL exists. Goodbye 404s! github.com/sveltejs/kit...

just some of the highlights of the great work the @e18e.dev community has been doing in the last few months. awesome work by everyone involved, and big thanks to all the maintainers who collaborated ❤️

It looks like Vite is getting a new devtools 👀 github.com/vitejs/devto...

Svelte remote functions PR is out and here are the changes. 🔥 I removed things so they fit in a post but I'm going to link to the updates and the PR. 👇

I just came across a great site that lets the public crowdfund testing of their foods to check whether they contain hormone disruptors: laboratory.love GitHub's founder did this and posted his results on plasticlist.org and it was really surprising how many products were found to contain phthalates

Ark UI now supports Svelte and it looks really awesome! ark-ui.com/blog/introdu...

The Remote Functions RFC from Svelte maintainers is really good. Not only do you get built-in optimistic updates, but also correct rollback to the correct state on both errors *and* random network latency out of the box! #svelte #javascript #sveltekit

SvelteKit now supports Rolldown for faster builds via Rust! See the changelog for more details: github.com/sveltejs/kit... Thanks to Tee Ming and @dominikg.dev for implementing and the @rolldown.rs team for a tremendous amount of support in making this work!

hard to overstate how excited i am about this RFC — @dummdidumm.bsky.social is doing incredible work. this raises the bar for data fetching in frameworks, and unlocks some very cool new use cases for SvelteKit. we have a lot more ideas that will build on top of this work github.com/sveltejs/kit...

Awesome LLM benchmark by @khromov.se to test which model writes Svelte 5 code the best!

✨ The results are in - Opus 4 and Sonnet 4 are very capable of writing Svelte 5 code out of the box, without excessive prompting or llms.txt files! All results here: khromov.github.io/svelte-bench... Bonus: A TODO app written with Svelte 5 / Opus 4 in one shot: svelte.dev/playground/e...

Claude 4 joins Gemini 2.5 in having a knowledge cutoff recent enough to write Svelte 5 code!