head to head · open source
lighthouse vs c15t
lighthouse has 31,005 GitHub stars, 9,785 forks, 470 open issues and last shipped 2 days ago. c15t has 2,018 stars, 266 forks, 27 open issues and last shipped yesterday. lighthouse leads on adoption by 1,436% (31,005 vs 2,018 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 13%. c15t 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 | ★ 2.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-01 | 2026-11-02 |
| Forks | ⑂ 9.8K | ⑂ 266 |
| 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 Lighthouse analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices. Using Lighthouse Using Lighthouse in Chrome DevTools Using the Chrome extension Using the Node CLI CLI options Using the Node module Viewing a report Online Viewer Docs & Recipes Developing Lighthouse Setup Run Tests Docs Associated Products and Projects Lighthouse Integrations in Web Perf services Lighthouse Integrations in non Web Perf services Plugins Related projects FAQ How does Lighthouse work? Can I configure the lighthouse run? How does Lighthouse use network throttling…
read the full lighthouse overview →
About c15t
c15t is a developer first consent management platform (CMP) used by 2,100+ sites, including expo.dev, zed.dev, and unkey.dev. It helps JavaScript, React, and Next.js teams build cookie banners, preference centers, privacy preferences, and fully headless consent flows, with integrations for Google Tag Manager, Google Consent Mode v2, Meta Pixel, IAB TCF 2.3, and more. Overview c15t keeps consent management inside your application stack instead of a black box third party snippet. Use the prebuilt UI for cookie banners, consent dialogs, and preference centers, or use the headless APIs to build a fully custom…
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Frequently asked questions
Is lighthouse or c15t more popular?
lighthouse has 31,005 GitHub stars and c15t has 2,018. 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 (31,005 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.