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Ultracite

Ultracite

Fast, automated code formatting for JavaScript apps

198 followers

Fast, automated code formatting for JavaScript apps

198 followers

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Engineering & Development
•
Automation tools
•
AI Coding Assistants
Ultracite is a fast, intuitive dev tool that brings automated code formatting and linting to your JS / TS projects. Built on top of Biome (a Rust-based code formatter), Ultracite provides a robust, preconfigured setup optimized for modern web development.
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Company Info
ultracite.devGitHub
Ultracite Info
Launched in 2025View 1 launch
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p/ultracite
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Free
Launch tags:
Open Source•Software Engineering•Developer Tools
Launch Team / Built With
fmerianHayden Bleasel
Fumadocs

What do you think? …

fmerian
fmerian
Hunter
Launching soon!
📌

meow there!

psyched to post here @haydenbleasel's latest project, introducing @Ultracite.

Ultracite is a preconfigured setup of Biome, a high-performance Rust-based toolchain which includes a formatter, linter, and more for JavaScript and TypeScript. In short, Ultracite helps you write better, cleaner code without having to set everything up yourself.

@shadcn put it simply: "Ultracite is a solid option if you're looking to try Biome for linting and formatting."

it starts with a command line:

npx ultracite@latest init

to learn more:

  • Read the docs

  • View source code

and if you want to quickly experiment with it, see @next-forge by Vercel for example.

enjoy!

Report
2mo ago
Hayden Bleasel
Hayden Bleasel
Vercel

Vercel

Maker
Hey folks, and thanks for hunting @fmerian ! Super excited to bring you this new version of Ultracite, focused on bringing the gap between your teams code and AI generated code. Formatting can be tricky and subjective, and there’s a lot of moving pieces to get right. Ultracite’s designed to be a drop-in, zero-config Biome preset to help you, your team and your models generate better code, faster. Would love to hear your thoughts, particularly on the rules and how it feels to use ✌️
Report
2mo ago
fmerian
fmerian
Hunter
Launching soon!
@haydenbleasel @shadcn and @piersonmarks can’t be wrong
Report
2mo ago
Chris Messina
Chris Messina

@haydenbleasel this is sweet! Is it possible to run it silently or less verbosely?

Report
2mo ago
Kingsley Temidayo
Kingsley Temidayo

@fmerian  @haydenbleasel 
Impressive launch! A solid product with real potential. Would you be open to a quick design suggestion that could instantly improve clarity and conversions?

Report
2mo ago
Rohan Gayen
Rohan Gayen

Is this similar to prettier?

Report
2mo ago
Hayden Bleasel
Hayden Bleasel
Vercel

Vercel

Maker
@admiralrohan yes! Biome is a replacement for Prettier and ESLint (merges linting and formatting). Ultracite is a preset for Biome, so you get all the bells and whistles without needing to write any config.
Report
2mo ago
Rohan Gayen
Rohan Gayen

@haydenbleasel Got it. 2 observations for me

  1. "Q: What exactly is Ultracite – how is it different from Biome or ESLint?" was not clear for me, had to search deep into faq.

  2. The "AI-ready formatter" isn't clear for me, don't see anything AI-specific here.

Report
2mo ago
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Do you use Ultracite?

Forum Threads

Ultracitep/ultracitefmerian
fmerian
•

1mo ago

How did you get your first 1,000 GitHub Stars?

Launched on Product Hunt last week, Ultracite, a fast, automated code formatting and linting tool for JavaScript, just hit 1,000 stars on GitHub.

The Product Hunt effect?

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