Alternatives · Technical SEO
Unlighthouse alternatives
As of Oct 24, 2026, the best Unlighthouse alternative for most people is SiteOne Crawler (3.0 GPA), second in our ranking of technical SEO tools. The best free one is Lighthouse (3.2 GPA).
Unlighthouse compared with 7 alternatives: Lighthouse, PageSpeed Insights, sitespeed.io, Lighthouse Metrics, DebugBear and 2 more.
Unlighthouse is free to use. 5 of the 7 alternatives are free or have a free plan. 2 more offer a free trial.
Listings checked up to Oct 23, 2026 · Where the facts come from
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| UnlighthouseThis tool | Free | Free | macOS, Windows, Linux |
| Lighthouse | Free | Free | Web, Browser extension |
| PageSpeed Insights | Free | Free | Web |
| sitespeed.io | Free | Free | macOS, Windows, Linux |
| Lighthouse Metrics | Free trial · from $10 one-time | Trial only | Web |
| DebugBear | Free trial · from $99/mo | Trial only | Web |
| SiteOne Crawler | Free | Free | macOS, Windows, Linux |
| squirrelscan | Free plan · from $19/mo | Yes | Web, macOS, Windows, Linux |
Price against what you get
Unlighthouse has no paid plan and scores 1.7 out of 4 on features, ease of use and platforms. None of the 7 alternatives on this chart both scores higher and starts lower.
Lighthouse, PageSpeed Insights, Lighthouse Metrics, DebugBear, SiteOne Crawler and squirrelscan score higher without starting lower.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
How each one differs from Unlighthouse
Lighthouse
Google's open-source audit of page speed, accessibility and SEO
- Lighthouse is free.
- Lighthouse also lists a web app and a browser extension.
- Lighthouse lists no macOS, Windows and Linux apps, which Unlighthouse has.
Suits: Web developers fixing speed and accessibility problems on a page
PageSpeed Insights
Free Google speed test with real-user Core Web Vitals and Lighthouse
- PageSpeed Insights is free.
- PageSpeed Insights also lists a web app.
- PageSpeed Insights lists no macOS, Windows and Linux apps, which Unlighthouse has.
- PageSpeed Insights does not cover site audit, which Unlighthouse does.
Suits: Checking one page's Core Web Vitals the way Google measures them
sitespeed.io
Free open-source toolkit for testing and monitoring web performance
- sitespeed.io is free.
- sitespeed.io is self-hostable, according to its own site.
- sitespeed.io does not cover site audit, which Unlighthouse does.
Suits: Developers who want full control of synthetic performance tests at no license cost
Lighthouse Metrics
Lighthouse tests from 16 regions with scheduled monitoring
- Lighthouse Metrics starts at $10 one-time for 50 test runs, or $16 per month billed annually for monitoring.
- Lighthouse Metrics has no free plan, only a free trial, unlike Unlighthouse.
- Lighthouse Metrics also lists a web app.
- Lighthouse Metrics lists no macOS, Windows and Linux apps, which Unlighthouse has.
- Lighthouse Metrics does not cover site audit, which Unlighthouse does.
Suits: Seeing how a page's Lighthouse score varies across regions
DebugBear
Page speed and Core Web Vitals monitoring with lab tests and RUM
- DebugBear starts at $99 per month, billed yearly ($1,188 a year).
- DebugBear has no free plan, only a free trial, unlike Unlighthouse.
- DebugBear also lists a web app.
- DebugBear lists no macOS, Windows and Linux apps, which Unlighthouse has.
- DebugBear also covers dashboards.
Suits: SEO and development teams working to pass Core Web Vitals
SiteOne Crawler
Free open-source site crawler and audit report, as an app or CLI
- SiteOne Crawler is free.
- SiteOne Crawler does not cover page speed, which Unlighthouse does.
Suits: Developers and QA engineers auditing a whole site at no cost
squirrelscan
Open-source site audit CLI whose fixes are written for coding agents
- squirrelscan starts at $19 per month, billed monthly.
- squirrelscan also lists a web app.
- squirrelscan does not cover page speed, which Unlighthouse does.
Suits: Developers who fix sites with Claude Code, Cursor or another coding agent
Limits worth knowing in Unlighthouse
- It runs on your own computer or CI and needs Node.js and Chrome; there is no hosted version.
- Results are Lighthouse lab scores only, with no real-user monitoring.
- Docker support is described as community-maintained and experimental.
- Version 1 is still in beta.
Common questions
What are the alternatives to Unlighthouse?
The alternatives to Unlighthouse in this directory are Lighthouse, PageSpeed Insights, sitespeed.io, Lighthouse Metrics, DebugBear, SiteOne Crawler and squirrelscan. Each one has a side-by-side comparison with Unlighthouse.
Is there a free alternative to Unlighthouse?
Yes. Lighthouse, PageSpeed Insights, sitespeed.io and SiteOne Crawler are free to use. squirrelscan has a free plan alongside paid ones.
When were these prices checked?
Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices without notice, so confirm on their site before you buy.