What's new in Svelte: July 2025
Vite 7 and Rolldown support, better traces and vitest browser mode support
Whether you're trying out Vite 7, vitest browser mode or remote functions, there's lots of experimental features to try this month.
Want some Svelte swag while you're chatting on Discord? With the new sv ⚡ server tag, you do just that. While signed into Discord, you can adopt our tag via profile settings.
There's a bunch to cover, from blog posts to new libraries, so let's dive in...
What's new in Svelte and SvelteKit
$inspect.tracenow includes source name logging to make it easy to find which file the log came from (svelte@5.34.0, Docs, #16060)The latest version of SvelteKit now supports Vite 7 and Rolldown. Compilation should be faster using Rolldown, but with larger bundle sizes until additional tree-shaking is implemented in Rolldown (kit@2.22.0, Docs, #13747)
For a full list of bug fixes in Svelte, SvelteKit and its adapters, check out their CHANGELOGs here and here.
What's new in the CLI and Language Tools
The
svCLI now supports Vite's browser mode in Vitest - allowing you to run your tests in the browser natively (cli@0.8.12, Docs, #588)The language server now makes it easier to search for symbol names (
Ctrl + Tin VSCode). Some of the handling is also synced to the Svelte TypeScript plugin so that it's more consistent, which also means vscode can better deduplicate the results from both tsserver and Svelte language server (extensions@109.9.0, #2769)
Community Showcase
Apps & Sites built with Svelte
Planet Poster is an interactive art work inspired by a poster of, you guessed it, planets
roomy-worlds lets you create small 3d worlds and share/edit with your community
Prodcast lets you discover products curated from your favorite podcasts
Distill automates company and industry monitoring with all news, updates, and summarized insights in one place
thom.chat is an open-source alternative/clone to T3 Chat
Visual Source is a GUI for managing your projects design tokens
Learning Resources
Featuring Svelte Contributors and Ambassadors
Type-Safe Persistence and Auto-Theming in Svelte 5 by Puru VJ
$effect is fine but proxies are better and How to build Web Components with Svelte by Paolo Ricciuti
This Week in Svelte
To Watch/Read
Sveltest is a guide to set up testing for Svelte 5 applications using the experimental vitest-browser-svelte library
A Playful Onboarding: Your first interactive animation from A to Z by Director.design
Migrating from @testing-library/svelte to vitest-browser-svelte by Scott Spence
Why Silicon Valley CTOs Are Secretly Moving Away from React by Freedium
Async Local Storage by Ross Robino
Mainmatter has a bunch of Svelte workshops in July so be sure to check those out!
Libraries, Tools & Components
shadcn-svelte v1 - after 11 months in pre-release (@next), shadcn-svelte has officially hit v1.0. Congrats!
Quaff is a component library for Svelte that follows the Material Design 3 guidelines
Neodrag v3 Alpha is out with multi-framework adapters, event delegation and more
Svelte Polaris is port of Shopify's design system to build Shopify apps
Origin UI is a collection of copy-and-paste components for quickly build application UIs
Svelte 5 MCP Server is a specialized Model Context Protocol (MCP) server for Svelte 5 frontend development
Frizzante is a minimalistic and opinionated web server framework written in Go that uses Svelte to render pages
Storybook 9 is out now and includes updates to the Svelte CSF story format to support Svelte 5
Sheepdog supplies a simple way to introduce cancellable concurrency into your app
Flowbite Svelte now has datatable and text editor (WYSIWYG) components
Ark UI, a headless UI library, now has a Svelte version
SVAR Svelte Filter helps you add complex filtering UI and logic to data-heavy apps like admin panels or dashboards
That's it for this month! Let us know if we missed anything on Reddit or Discord.
Until next time 👋🏼!