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vuejs/vue

This system is a comprehensive framework for building user interfaces, specifically focusing on Vue.js's core rendering, reactivity, and compilation capabilities. It provides a modular architecture for server-side rendering, Single-File Component (SFC) compilation, and virtual DOM patching, all implemented in TypeScript. The codebase supports both the traditional Options API and the modern Composition API, enabling developers to manage state, handle DOM updates, and optimize performance through benchmarking tools.

44.1

Weak · 5 August 2026

46k

lines of production code

TypeScript

with JavaScript

1

bus factor · 494 authors in all

3

measurements over time

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How it got here

2016 · Monorepo migration and TypeScript adoption

The project underwent a major architectural shift to a TypeScript-based monorepo structure, replacing legacy build systems and modularizing the codebase. This period focused on modernizing the development environment, introducing comprehensive TypeScript type definitions, and establishing a modular package structure using pnpm workspaces.

18 changes

2017–2021 · Vue 3 TypeScript migration and VDOM refactoring

This period focused on the comprehensive migration of the Vue 3 codebase to TypeScript, covering core modules, the virtual DOM, and web platform implementations. The work also involved significant architectural refactoring of the virtual DOM and reactivity systems to improve type safety, maintainability, and developer experience.

20 changes

2022 · Vue 3 Composition API and SFC compiler rewrite

This period focused on introducing the Vue 3 Composition API and a new reactivity system, alongside a complete rewrite of the Single-File Component (SFC) compiler. The work was heavily supported by extensive test coverage for the new APIs, the server-side rendering package, and the updated compiler infrastructure.

32 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 5 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 9e88707940 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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