Websites & Online Business·Standings

Compare Website Audit Software

Website audit software checks websites for issues, and the right choice depends on the audits you need and how the tool fits your workflow.

Use the board to compare a signal score out of 10, plus marks for a public API, open-source code and a free tier. Check the listed audit limits, platforms and integrations against your needs.

  • 23 platforms
  • 12 with a public API on this page
  • 12 with a free tier
  • Checked 28 Sept 2026
  1. 1
    SF
    Screaming Frog SEO Spiderscreamingfrog.co.uk

    Freemium site analysis software for desktop, server and API use on Windows, Mac and Linux.

    7.8 APIOpenFree Free tier · from $235/yr (lower tiers unpriced)
  2. 2
    S
    SpiderNowspidernow.com

    Site audit service with a free plan for web, Android, iOS, an API, and a browser extension.

    7.8 APIOpenFree Free tier · from $6.99/mo
  3. 3
    W
    WooRankwoorank.com

    SEO platform for keywords, rankings, audits, and backlinks on web, API, and extension; free plan, 3-day trial.

    7.5 APIOpenFree Free tier · from $69.99/mo
  4. 4
    SC
    SiteOne Crawlercrawler.siteone.io

    Free crawler with API, desktop and self-hosted options that audits SEO, performance, accessibility and security.

    7.5 APIOpenFree Free tier
  5. 5
    L
    Lighthousedeveloper.chrome.com

    Free open-source tool auditing page performance, accessibility, SEO and more through web, browser or command line.

    6.7 APIOpenFree Free tier
  6. 6
    J
    JetOctopusjetoctopus.com
    6.6 APIOpenFree —
  7. 7
    R
    Ryteen.ryte.com

    Ryte is a cloud-based website analysis platform designed to uncover improvements to website user experience.

    6.6 APIOpenFree —
  8. 8
    S
    Sitebazesitebaze.com

    API service for site audits, keyword discovery and rank checks; free, with paid plans from €39 monthly.

    6.6 APIOpenFree Free tier · from €39/mo
  9. 9
    B
    Botifybotify.com

    Web, API and extension software for auditing sites, checking rankings and finding keywords; pricing on request.

    6.4 APIOpenFree —
  10. 10
    WA
    WebSite Auditorlink-assistant.com

    WebSite Auditor is software for technical and on-page SEO auditing and optimization of websites.

    6.4 APIOpenFree Free tier · from $149/yr
  11. 11
    AC
    Alpha Crawleralphacrawler.org

    Technical SEO crawler with a free plan, self-hosting and web access; audits structure, metadata and performance.

    6.3 APIOpenFree Free tier
  12. 12
    C
    Crabcrab.so

    Free desktop crawler for Windows, macOS and Linux that checks links, redirects, metadata and structured data locally.

    6.3 APIOpenFree Free tier
  13. 13
    F
    FreeCrawlfreecrawl.net

    Free local crawler for unlimited URLs, with multiple crawl modes and JavaScript page checks.

    6.3 APIOpenFree Free tier
  14. 14
    S
    Sitebulbsitebulb.com

    Site crawler for desktop, web and extension use on Windows and Mac, with a 14-day trial.

    6.2 APIOpenFree —
  15. 15
    S
    SiteGurusiteguru.co

    Web SEO platform with a free plan, rank tracking, paid plans from $49 monthly and a 42-day trial.

    6.2 APIOpenFree Free tier · from $49/mo
  16. 16
    O
    Oncrawloncrawl.com

    Web and API software for site checks, incoming-link analysis and rank tracking; pricing on request.

    6.2 APIOpenFree —
  17. 17
    L
    Lumarlumar.io

    Paid web and API platform for site audits, with API access and pricing available on request.

    6.2 APIOpenFree —
  18. 18
    NS
    Netpeak Spidernetpeaksoftware.com

    Netpeak Spider crawls websites and analyzes on-page SEO, including status codes, redirects, structured data, tags, site structure, and other technical SEO…

    6.1 APIOpenFree Free tier · from $193/yr (lower tiers unpriced)
  19. 19
    SA
    Site Analyzersite-analyzer.com
    5.9 APIOpenFree From $35/mo
  20. 20
    S
    SEOptimerseoptimer.com
    5.8 APIOpenFree From $29/mo
  21. 21
    A
    Audistoaudisto.com

    Paid cloud crawler with web and API access for technical SEO, content, structure and rendered-page analysis.

    5.2 APIOpenFree From $99/mo
  22. 22
    SS
    SEO Site Checkupseositecheckup.com
    4.7 APIOpenFree From $39/mo
  23. 23
    SP
    Siteimprove PDF Remediation Agentsiteimprove.com

    Browser-based software for fixing accessibility issues in PDF files; pricing on request.

    4.0 APIOpenFree —

Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise

How to choose

Can I try it or use a free plan?

Check the free-plan and free-trial details before choosing. A free plan and a time-limited trial are different options, so confirm which one is listed and what it lets you do.

How many pages can it audit in one crawl?

Compare the pages-per-crawl limit with the size of the site you need to check. A suitable limit depends on how much of your site you want to audit at once.

How often can it run an audit?

Compare audit frequency with how often you want to check for website issues. Confirm the schedule available for the plan you are considering.

What does the audit cover?

Compare audit coverage to the checks you need. The listing includes audit coverage as a comparison point; review the tool's details to see whether it matches your requirements.

Does it connect to my apps and platforms?

Check the platform and native-integration details against the apps and devices you already use. If you need software to connect through a public API, look for its API mark.

Can I manage multiple sites or share branded reports?

Compare the listed sites-or-projects limit with the work you need to manage. If reports go to clients or colleagues, check whether white-label reports are available.

Questions

What is website audit software?

It is software for auditing websites. Compare tools by audit coverage, pages per crawl and audit frequency, as well as platform and integration fit.

How do I choose website audit software?

Start with the audits you need, then compare crawl limits, audit frequency, site or project limits, integrations, platforms and available free options.

Is there free website audit software?

The board marks tools with a free plan and separately records free trials. Check the listing for the plan or trial details.

What does the website audit software score mean?

The score is out of 10 and reflects published signals including use, API availability, documentation depth, open-source code and a free tier.

Can website audit software connect to my existing apps?

Check the native-integration details and platform support. A public API mark can also help identify tools that offer an API.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure