head to head · open source
lighthouse vs greenlight
lighthouse has 30,785 GitHub stars, 9,765 forks, 470 open issues and last shipped yesterday. greenlight has 2,430 stars, 145 forks, 4 open issues and last shipped 1 months ago. lighthouse leads on adoption by 1,167% (30,785 vs 2,430 stars). lighthouse is written in JavaScript under Apache-2.0; greenlight is written in Go under MIT. lighthouse has attracted 32% as many forks as stars, greenlight 6%. lighthouse was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| lighthouse | greenlight | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 2.4K |
| License | Apache-2.0 | MIT |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-08-05 |
| Forks | ⑂ 9.8K | ⑂ 145 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick lighthouse if
- You weight community size — 31K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick greenlight if
- You want the greenlight feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and greenlight fits your workflow better
About lighthouse
Lighthouse is an open source, automated auditing tool for web applications and web pages. It analyzes a target URL and collects modern performance metrics alongside insights into developer best practices, producing a structured report that scores and explains what it finds. The project lives in the JavaScript ecosystem, is distributed under the Apache 2.0 license, and is maintained under the GoogleChrome organization. It has been developed for roughly eleven years and is published to npm as the lighthouse package.
read the full lighthouse overview →
About greenlight
Greenlight is an open source command line compliance scanner for mobile apps that target the Apple App Store and Google Play. It lives in the Go, CLI, mobile, React Native, Expo, iOS, and Android ecosystem, and it reads source code, privacy manifests, Android manifests, Gradle builds, IPA binaries, and App Store Connect metadata.
read the full greenlight overview →
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Frequently asked questions
Is lighthouse or greenlight more popular?
lighthouse has 30,785 GitHub stars and greenlight has 2,430. lighthouse has the larger community by that measure.
Are lighthouse and greenlight free?
Both are open source. lighthouse is licensed under Apache-2.0 and greenlight under MIT. Neither carries a licence fee.
What is the difference between lighthouse and greenlight?
lighthouse is written in JavaScript and greenlight in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, lighthouse or greenlight?
Choose lighthouse if you want the larger community (30,785 stars) or its Apache-2.0 licence terms. Choose greenlight if its feature set, stack or MIT licence fits better. Both are self-hostable.