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Visual SEO Studio alternatives · Technical SEO

Open-source alternatives to Visual SEO Studio

Visual SEO Studio is not described as open source on its own site. 8 of the 83 other technical SEO tools in this directory are open source, according to their own sites.

Visual SEO Studio has a free plan. Paid plans start at €149 per year, per PC, plus VAT for EU consumers. All of them are free or have a free plan.

8 tools · Listings checked up to Oct 23, 2026 · Where the facts come from

How each one differs from Visual SEO Studio

  1. SiteOne Crawler

    Free open-source site crawler and audit report, as an app or CLI

    • SiteOne Crawler is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only SiteOne Crawler lists a Linux app.
    • SiteOne Crawler is open source, according to its own site.
    • Visual SEO Studio also covers reports.
    SiteOne Crawler vs Visual SEO StudioSiteOne Crawler pricing and details

  2. Unlighthouse

    Free open-source tool that runs Lighthouse on every page of a site

    • Unlighthouse is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only Unlighthouse lists a Linux app.
    • Unlighthouse is open source, according to its own site.
    • Unlighthouse also covers page speed.
    Unlighthouse pricing and details

  3. Lighthouse

    Google's open-source audit of page speed, accessibility and SEO

    • Lighthouse is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only Lighthouse lists a web app.
    • Only Lighthouse lists a browser extension.
    • Only Visual SEO Studio lists Windows and macOS apps.
    Lighthouse pricing and details

  4. SEOnaut

    Open-source SEO site audit tool, self-hosted or in the cloud

    • SEOnaut starts at $9 per month, billed monthly. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only SEOnaut lists a web app.
    • Only Visual SEO Studio lists Windows and macOS apps.
    • SEOnaut is open source and self-hostable, according to its own site.
    SEOnaut pricing and details

  5. LibreCrawl

    Free open-source SEO crawler you run in your own browser

    • LibreCrawl is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only LibreCrawl lists a web app.
    • Only LibreCrawl lists a Linux app.
    • LibreCrawl is open source and self-hostable, according to its own site.
    LibreCrawl pricing and details

  6. squirrelscan

    Open-source site audit CLI whose fixes are written for coding agents

    • squirrelscan starts at $19 per month, billed monthly. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only squirrelscan lists a web app.
    • Only squirrelscan lists a Linux app.
    • squirrelscan is open source, according to its own site.
    squirrelscan pricing and details

  7. sitespeed.io

    Free open-source toolkit for testing and monitoring web performance

    • sitespeed.io is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only sitespeed.io lists a Linux app.
    • sitespeed.io is open source and self-hostable, according to its own site.
    • sitespeed.io also covers page speed.
    sitespeed.io pricing and details

  8. Yellow Lab Tools

    Free open-source audit of a page's speed and front-end code

    • Yellow Lab Tools is free. Visual SEO Studio starts at €149 per year, per PC, plus VAT for EU consumers.
    • Only Yellow Lab Tools lists a web app.
    • Only Yellow Lab Tools lists a Linux app.
    • Only Visual SEO Studio lists a Windows app.
    Yellow Lab Tools pricing and details

Common questions

Is there an open-source alternative to Visual SEO Studio?

Yes. SiteOne Crawler, Unlighthouse, Lighthouse, SEOnaut, LibreCrawl, squirrelscan, sitespeed.io and Yellow Lab Tools are open source, according to their own sites.

Is Visual SEO Studio open source?

Visual SEO Studio is not described as open source on its own site. The listing was checked on Oct 23, 2026 against the pages it cites.

When was this checked?

Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Visual SEO Studio: the alternatives its listing names first, then the tools that share the most features with it.