extension-js/extension.js
The cross-browser extension framework.
Star History
Momentum
+129
STARS · LAST 30 DAYS
4
PER DAY
#160
MOST-STARRED TypeScript
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +28 | +129 | +360 |
| Per day | 4 | 4 | 4 |
| Forks gained | +1 | +3 | +10 |
extension.js gained 129 stars in the last 30 days, about 4 a day, and now has 5.2K. It is about 6 years old and has averaged roughly 862 stars a year. It ranks #160 among TypeScript repositories and #1,067 across all languages on GitHubRepo.
Trending Record
4
DAYS ON TRENDING
#983
BEST RANK
Sep 25, 2026
FIRST APPEARANCE
Active
STATUS TODAY
extension.js has maintained a continuous presence across global trending indexes, peaking at #983. Below is the 30-day activity profile:
💡 Overview
extension.js is an open-source project written in TypeScript: The cross-browser extension framework.
Engineered for speed, consistency, and developer ease, it solves common hurdles in browser-extension, build-tool, chrome-extension. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in TypeScript for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ npm install extension.js⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Node.js >= 18, npm, pnpm or bun
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
extension.js coordinates its core functionality through a modular TypeScript pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Modern Web Interfaces
Build dynamic, responsive user experiences with component-driven architecture.
Enterprise Design Systems
Standardize design tokens, accessible widgets, and themes across engineering teams.
Interactive Data Dashboards
Render real-time telemetry, user feeds, and analytics with sub-millisecond updates.
Cross-Platform Web Apps
Deploy performant single-page applications optimized for both mobile and desktop browsers.
🚀 Getting Started
Install extension.js using your package manager: `npm install extension.js`
Initialize your project workspace or configuration file for extension.js.
Import extension.js into your codebase or invoke it directly from your terminal.
Execute your test suite or run `extension.js --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with TypeScript, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
extension-js/extension.js is currently ranked #1,067 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,062 | cucumber/cucumber-ruby | Ruby | ★ 5.2K | Compare ↗ |
| #1,063 | jetkvm/kvm | TypeScript | ★ 5.2K | Compare ↗ |
| #1,064 | php-webdriver/php-webdriver | PHP | ★ 5.2K | Compare ↗ |
| #1,065 | github/gh-aw | Go | ★ 5.2K | Compare ↗ |
| #1,066 | vitali87/code-graph-rag | Python | ★ 5.2K | Compare ↗ |
| #1,067 | extension-js/extension.js This Project | TypeScript | ★ 5.2K | |
| #1,068 | vulkano-rs/vulkano | Rust | ★ 5.2K | Compare ↗ |
| #1,069 | wp-cli/wp-cli | PHP | ★ 5.2K | Compare ↗ |
| #1,070 | line/armeria | Java | ★ 5.1K | Compare ↗ |
| #1,071 | jquery-form/form | JavaScript | ★ 5.1K | Compare ↗ |
| #1,072 | bisq-network/bisq | Java | ★ 5.1K | Compare ↗ |
Frequently Asked Questions
What does extension.js do? +
The cross-browser extension framework.
What language is extension.js written in? +
The primary language is TypeScript. Topics include: browser-extension, build-tool, chrome-extension, chrome-extensions, cross-browser.
Is extension.js actively maintained? +
Yes, the last recorded push was on Sep 26, 2026 with 5 open issues being tracked.
How many stars does extension.js have? +
extension.js has 5,173 stars and 139 forks on GitHub.
How does extension.js rank among GitHub repositories? +
With 5,173 stars, extension-js/extension.js is ranked #1,067 globally across all repositories tracked on GitHubRepo and #160 among TypeScript projects.
What license is extension.js distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
