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Open source repos that use PostCSS

11 public repos that SeeRepo read use PostCSS. It's used most with Vite, React, and @clack/prompts.

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Used most with

  • Vite7 repos
  • @clack/prompts3 repos
  • Less2 repos
  • Next.js2 repos
PostCSS11 repos
  • React5 repos
  • Vue2 repos
  • Express2 repos
  • emotion2 repos

The repos, by stars

  1. 1
    vercel/next.js

    The React Framework

    JavaScript+31143.3kAI 0.8%
  2. 2
    shadcn-ui/ui

    Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

    TypeScript+36127.3kAI 3%
  3. 3
    thedotmack/claude-mem

    Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

    TypeScript+26112.5kAI 61.1%
  4. 4
    mui/material-ui

    Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

    JavaScript+1099.3kAI 0.3%
  5. 5
    tailwindlabs/tailwindcss

    A utility-first CSS framework for rapid UI development.

    TypeScript+698.1kAI 0.2%
  6. 6
    vitejs/vite

    Next generation frontend tooling. It's fast!

    TypeScript+583.7kAI 0.7%
  7. 7
    unslothai/unsloth

    Local UI to run and train LLMs and diffusion models. Supports GGUF, MLX, Qwen3.8, DeepSeek-V4.1, MiniMax-H3, Gemma 4, FLUX and more.

    Python+9579.1kAI 1%
  8. 8
    heygen-com/hyperframes

    Write HTML. Render video. Built for agents.

    TypeScript+2478.9kAI 19.1%
  9. 9
    youzan/vant

    A lightweight, customizable Vue UI library for mobile web apps.

    TypeScript+324.4k
  10. 10
    beekeeper-studio/beekeeper-studio

    Modern and easy to use database GUI & SQL client for MySQL, Postgres, SQLite, SQL Server, ClickHouse, and more. Linux, MacOS, and Windows.

    TypeScript+2523.8kAI 6.7%
  11. 11
    marimo-team/marimo

    A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

    Python+5223.4kAI 3.6%

Frequently asked questions

What is the most popular open source repo that uses PostCSS?
vercel/next.js, with 143,262 stars on GitHub.

The proof: vercel/next.js on GitHub

What other technologies is PostCSS used with?
With Vite (7), React (5), @clack/prompts (3), Vue (2), and Less (2), out of the 11 repos that use it.
What languages are the repos that use PostCSS written in?
TypeScript (7), JavaScript (2), and Python (2).
How many repos that use PostCSS have commits signed by AI?
10 of the 11; the most, thedotmack/claude-mem, with 61.1% of its commits.

The proof: the commits each tool signed in thedotmack/claude-mem

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