head to head · open source
lighthouse vs copacetic
lighthouse has 30,785 GitHub stars, 9,765 forks, 470 open issues and last shipped yesterday. copacetic has 1,708 stars, 124 forks, 29 open issues and last shipped 3 days ago. lighthouse leads on adoption by 1,702% (30,785 vs 1,708 stars). lighthouse is written in JavaScript under Apache-2.0; copacetic is written in Go under Apache-2.0. lighthouse has attracted 32% as many forks as stars, copacetic 7%. 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 | copacetic | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 1.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | JavaScript | Go |
| Last push | 2026-09-17 | 2026-09-15 |
| Forks | ⑂ 9.8K | ⑂ 124 |
| 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 copacetic if
- You want the copacetic feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and copacetic 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 copacetic
Copa is a CLI tool written in Go and based on buildkit that directly patches container images without a full rebuild. It lives in the container security and DevSecOps ecosystem, where it works with Docker images and vulnerability scan reports from tools such as Trivy.
read the full copacetic overview →
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Frequently asked questions
Is lighthouse or copacetic more popular?
lighthouse has 30,785 GitHub stars and copacetic has 1,708. lighthouse has the larger community by that measure.
Are lighthouse and copacetic free?
Both are open source. lighthouse is licensed under Apache-2.0 and copacetic under Apache-2.0. Neither carries a licence fee.
What is the difference between lighthouse and copacetic?
lighthouse is written in JavaScript and copacetic 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 copacetic?
Choose lighthouse if you want the larger community (30,785 stars) or its Apache-2.0 licence terms. Choose copacetic if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.