head to head · open source
lighthouse vs c15t
lighthouse has 30,785 GitHub stars, 9,765 forks, 470 open issues and last shipped yesterday. c15t has 1,897 stars, 218 forks, 27 open issues and last shipped yesterday. lighthouse leads on adoption by 1,523% (30,785 vs 1,897 stars). lighthouse is written in JavaScript under Apache-2.0; c15t is written in TypeScript under Apache-2.0. lighthouse has attracted 32% as many forks as stars, c15t 11%. 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 | c15t | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 1.9K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 9.8K | ⑂ 218 |
| 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 c15t if
- You want the c15t feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and c15t 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 c15t
c15t is a TypeScript consent management platform, or CMP, released under Apache 2.0. It helps JavaScript, React, and Next.js teams build cookie banners, preference centers, privacy preferences, and headless consent flows inside their application stack instead of using a black box third party snippet.
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Frequently asked questions
Is lighthouse or c15t more popular?
lighthouse has 30,785 GitHub stars and c15t has 1,897. lighthouse has the larger community by that measure.
Are lighthouse and c15t free?
Both are open source. lighthouse is licensed under Apache-2.0 and c15t under Apache-2.0. Neither carries a licence fee.
What is the difference between lighthouse and c15t?
lighthouse is written in JavaScript and c15t in TypeScript. 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 c15t?
Choose lighthouse if you want the larger community (30,785 stars) or its Apache-2.0 licence terms. Choose c15t if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.