SEODevil vs Screaming Frog

Screaming Frog is a desktop crawler built for technical SEOs. SEODevil is a web app that finds issues on your key pages, writes the fix and can apply it for you. Here is where each one wins.

The short answer

If you need to crawl an entire large site and dig through every URL, Screaming Frog is the better tool, and its free version covers up to 500 URLs. If you want a prioritized list of what to fix on your important pages, the code to fix it, and fixes applied to WordPress or GitHub without leaving your browser, pick SEODevil. Plenty of teams use both.

Side-by-side comparison

FeatureSEODevilScreaming Frog
TypeWeb app, nothing to installDesktop app for Windows, macOS and Linux
Free versionYes, no card neededYes, up to 500 URLs per crawl
Paid priceFree; Pro $29/month; Agency $99/month£199 per licence per year
Crawl scopeOne page per audit; monitoring covers up to 25 URLs on paid plansWhole site, limited mainly by your computer's memory and storage
JavaScript renderingYes, renders with headless Chrome when a page needs itYes (paid licence)
Prioritized action planEvery issue scored by severity and turned into a task listIssues tab with priority levels; you decide the plan
Fix code for each issueAI writes the fix for each issue, ready to paste (5 free, unlimited on paid)No
Apply fixes to your siteWrites title, meta description and image alt text to WordPress, or opens a GitHub pull request (Pro)No
Ongoing monitoringHomepage daily on Free; 25 URLs hourly on paid, with email and Slack alertsScheduled crawls on a computer you keep running (paid licence)
AI crawler access checksrobots.txt rules for 14 AI bots, firewall and CDN blocks, llms.txtPossible with custom robots.txt and user-agent settings
Google Search ConsoleYes; shows clicks and impressions before and after each fixYes, pulls Search Console data into the crawl (paid licence)

Screaming Frog details are from its website in October 2026. Prices and features change, so check their site for the latest.

Where Screaming Frog is stronger

  • Crawls whole sites, including very large ones, and finds every broken link, redirect chain, duplicate page and orphan URL.
  • Deep configuration: custom extraction, regex filters, list mode, crawl comparison and site visualisations.
  • A one-off yearly price with no per-site or per-page limits on the paid licence.
  • Runs locally, so it can crawl staging sites and intranets behind your firewall.

Where SEODevil is stronger

  • Nothing to install or keep running; your team opens it in a browser.
  • Each issue comes with a plain-English explanation and fix code written for your page.
  • Applies title, meta description and image alt text fixes straight to WordPress, or opens a GitHub pull request, then re-checks the live page.
  • Monitors your key pages from the cloud and alerts you by email or Slack when something breaks.
  • Checks whether ChatGPT, Claude and Perplexity can reach your site and tracks whether AI answers mention you.
  • Connects to Search Console to show whether each fix moved clicks and impressions.

Which one should you choose?

Choose Screaming Frog if you are a technical SEO who needs a full inventory of a large site and is comfortable turning crawl data into fixes yourself.

Choose SEODevil if you own or manage a handful of sites and want the important pages fixed, with the fixes applied and tracked for you.

Try SEODevil on your own site

The free plan runs full audits with no card needed.

Start free audit

Frequently asked questions

Is SEODevil a free alternative to Screaming Frog?

For checking and fixing your important pages, yes: the free plan runs full audits with no card. It does not crawl every URL on a site the way Screaming Frog does, so for a full-site inventory Screaming Frog's free version (up to 500 URLs) or paid licence is the better fit.

Can I use SEODevil and Screaming Frog together?

Yes. A common setup is to crawl the whole site with Screaming Frog to find problem pages, then audit and fix the pages that matter most in SEODevil, where the fixes can be applied to WordPress or GitHub and monitored afterwards.

Does SEODevil render JavaScript like Screaming Frog?

Yes. SEODevil renders pages in headless Chrome when the raw HTML is missing content, and it also compares the pre-render HTML so you can see what crawlers that don't run JavaScript, like most AI bots, actually receive.

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