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Schema Markup Validator alternatives · Technical SEO

Schema Markup Validator alternatives with a Linux app

The Schema Markup Validator listing does not include a Linux app. 7 of the 87 other technical SEO tools in this directory list a Linux app.

Schema Markup Validator is free to use. All of them are free or have a free plan.

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

How each one differs from Schema Markup Validator

  1. Beam Us Up

    Free desktop SEO crawler for Windows, Mac and Linux

    • Beam Us Up is free. Schema Markup Validator is free.
    • Only Beam Us Up lists Windows, macOS and Linux apps.
    • Only Schema Markup Validator lists a web app.
    • Beam Us Up also covers page speed.
    Beam Us Up pricing and details

  2. Unlighthouse

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

    • Unlighthouse is free. Schema Markup Validator is free.
    • Only Unlighthouse lists macOS, Windows and Linux apps.
    • Only Schema Markup Validator lists a web app.
    • Unlighthouse is open source, according to its own site.
    Unlighthouse pricing and details

  3. SiteOne Crawler

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

    • SiteOne Crawler is free. Schema Markup Validator is free.
    • Only SiteOne Crawler lists macOS, Windows and Linux apps.
    • Only Schema Markup Validator lists a web app.
    • SiteOne Crawler is open source, according to its own site.
    SiteOne Crawler pricing and details

  4. LibreCrawl

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

    • LibreCrawl is free. Schema Markup Validator is free.
    • Only LibreCrawl lists Windows, macOS and Linux apps.
    • LibreCrawl is open source and self-hostable, according to its own site.
    • Schema Markup Validator also covers schema markup.
    LibreCrawl pricing and details

  5. squirrelscan

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

    • squirrelscan starts at $19 per month, billed monthly. Schema Markup Validator is free.
    • Only squirrelscan lists macOS, Windows and Linux apps.
    • squirrelscan is open source, according to its own site.
    • Schema Markup Validator also covers schema markup.
    squirrelscan pricing and details

  6. sitespeed.io

    Free open-source toolkit for testing and monitoring web performance

    • sitespeed.io is free. Schema Markup Validator is free.
    • Only sitespeed.io lists macOS, Windows and Linux apps.
    • Only Schema Markup Validator lists a web app.
    • sitespeed.io is open source and self-hostable, according to its own site.
    sitespeed.io pricing and details

  7. Yellow Lab Tools

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

    • Yellow Lab Tools is free. Schema Markup Validator is free.
    • Only Yellow Lab Tools lists macOS and Linux apps.
    • Yellow Lab Tools is open source and self-hostable, according to its own site.
    • Yellow Lab Tools also covers page speed.
    Yellow Lab Tools pricing and details

Common questions

Which Schema Markup Validator alternatives have a Linux app?

Beam Us Up, Unlighthouse, SiteOne Crawler, LibreCrawl, squirrelscan, sitespeed.io and Yellow Lab Tools list a Linux app.

Does Schema Markup Validator have a Linux app?

The Schema Markup Validator listing does not include a Linux app. It lists Web.

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 Schema Markup Validator: the alternatives its listing names first, then the tools that share the most features with it.