Screaming Frog vs OnCrawl: Desktop Crawler vs Cloud Platform 2026
Two very different shapes of technical SEO tool: Screaming Frog runs locally and gives practitioners surgical control over crawling, while OnCrawl runs in the cloud and joins crawl data with server logs, GSC, GA4, and any custom data source. Which one fits your workflow?
Quick Verdict
Choose Screaming Frog for affordable, hands-on technical SEO audits, custom extraction, and migration QA — it's one of the highest-ROI tools in the entire SEO stack. Choose OnCrawl for enterprise-scale cloud crawling, integrated log analysis, custom data ingestion, and ongoing technical SEO programs that need dashboards rather than spreadsheets.
Quick Comparison: Screaming Frog vs OnCrawl
| Feature | Screaming Frog | OnCrawl |
|---|---|---|
| Best For | Consultants, agencies, technical SEOs | Enterprise sites, ecommerce, publishers |
| Deployment | Desktop (Windows / macOS / Linux) | Cloud (SaaS) |
| Starting Price | Free / £199 per year | From €49 per month |
| Free Tier | ✓ (500 URLs) | Demo / trial on request |
| Log File Analysis | Separate product (£99/yr) | ✓ Built in & joined with crawl |
| JavaScript Rendering | ✓ (headless Chrome, local) | ✓ (cloud, with comparison) |
| Custom Data Ingestion | Limited (via API integrations) | ✓ (any source) |
| Stakeholder Dashboards | Basic / spreadsheet exports | ✓ (built-in, AI assistant) |
What is Screaming Frog?
Screaming Frog SEO Spider is the desktop crawler that has anchored the technical SEO toolkit since 2010. It crawls locally on Windows, macOS, or Linux, gives practitioners deep control over every aspect of the crawl, and exports raw data the way most SEOs want it. The Log File Analyser product is sold separately and handles server-log parsing on the same desktop machine.
Key Strengths
- Free tier up to 500 URLs and a £199/year paid license
- Granular crawl configuration with include/exclude rules and JS rendering
- Custom extraction via XPath, CSS selectors, and regex
- Integrations with GSC, GA4, Ahrefs, Majestic, Moz, PageSpeed
- Database storage mode supports crawls in the millions
Best For
- Independent consultants and SEO agencies
- Site migrations and redirect QA
- Custom extraction projects and structured data audits
- Sites where one practitioner owns the analysis
Screaming Frog bills per user per year. Volume licenses bring per-seat pricing down for larger teams, and the Log File Analyser is sold separately if you need to layer in server log data.
What is OnCrawl?
OnCrawl is a cloud-based technical SEO platform that crawls websites at scale and cross-references the crawl with server log files, Google Search Console, GA4, Adobe Analytics, and any custom data source you can pipe in. It positions itself as the SEO platform for enterprise ecommerce, marketplaces, and publishers where the same crawl has to feed dashboards, alerts, and revenue narratives.
Key Strengths
- Cloud crawling sized to millions of URLs, no laptop limits
- Log file analysis integrated and joined with crawl data
- Custom data ingestion to pull in any analytics or CRM source
- Built-in AI assistant for explaining crawl findings
- Dashboards, scheduled reports, and alerting for SEO programs
Best For
- Enterprise ecommerce and marketplace catalogs
- Publishers and travel sites with deep archives
- Agencies running enterprise technical SEO programs
- Teams that need joined crawl + log + analytics views
OnCrawl publishes Explorer (~€49/mo) and Business (~€199/mo) tiers with an Infinite & Beyond enterprise tier on quote. Pricing scales with crawl volume, log volume, retention, and which integrations you turn on.
Screaming Frog vs OnCrawl: Feature Comparison
Crawling & Depth of Configuration
Screaming Frog is the sharper instrument for one-off technical discovery: every setting is exposed, custom extraction is exhaustive, and list mode makes redirect/canonical audits trivial. OnCrawl crawls in the cloud and brings configuration that an SEO team can share — the depth is real, but it's tuned for repeatable programs rather than ad hoc deep dives.
Screaming Frog
- • Granular include/exclude rules and rendering controls
- • Custom extraction via XPath, CSS, and regex
- • List-mode audits for redirects, canonicals, migrations
- • Database storage mode for very large crawls
- • Scheduled crawls via CLI
OnCrawl
- • Cloud crawling sized to enterprise URL counts
- • Segmentations and inlinks analysis at scale
- • Shareable crawl profiles across team members
- • Scheduled and recurring crawls out of the box
- • Crawl comparison and trend reporting
Winner: Screaming Frog for granular control; OnCrawl for shared enterprise crawling.
Log File Analysis
Log analysis is the single biggest dividing line between these tools. OnCrawl treats logs as a first-class data source — automatically joined with crawl, GSC, and analytics data to expose crawl budget waste, AI bot activity, and orphan pages that still get hits. Screaming Frog has a separate Log File Analyser product that's excellent on its own but lives outside the SEO Spider.
Screaming Frog
- • Log File Analyser sold separately at £99/year
- • Strong local parsing and bot frequency visualization
- • Joining log data with crawl data is a manual step
- • Best when one analyst owns the workflow
OnCrawl
- • Logs are an integrated data source in the platform
- • Automatic cross-referencing with crawl, GSC, GA4
- • Surfaces crawl budget, AI crawlers, orphan hits
- • Designed for SEO teams, not just data engineers
Winner: OnCrawl for joined crawl + log analysis.
Custom Data & Integrations
Both tools integrate with GSC, GA4, and PageSpeed. The difference is what happens to that data after import. Screaming Frog enriches the crawl with API columns; OnCrawl ingests data sources and lets you model them across segments, time, and bot type.
Screaming Frog
- • Native GSC, GA4, PageSpeed integrations
- • Ahrefs, Majestic, Moz link data integrations
- • Custom JavaScript snippet support
- • API for automation and CLI scripting
OnCrawl
- • Custom data ingestion from any source
- • Native GSC, GA4, Adobe Analytics, log sources
- • Built-in segmentation across data joins
- • AI assistant queries the joined data model
Winner: OnCrawl for cross-data analysis.
Reporting & Stakeholder Use
Screaming Frog produces the spreadsheets technical SEOs love — and exactly the spreadsheets executives don't want to read. OnCrawl was designed for ongoing reporting: dashboards, segment trends, alerts, and an AI assistant that translates crawl signals into narrative answers.
Screaming Frog
- • Raw exports to Excel, CSV, Google Sheets
- • Crawl visualizations (tree graphs, force-directed)
- • Best as input to internal analysis
- • Requires formatting for client/executive decks
OnCrawl
- • Built-in dashboards, scoring, and trend lines
- • Scheduled reports and alerting
- • AI assistant for natural-language summaries
- • Stakeholder-friendly without manual rework
Winner: OnCrawl for ongoing reporting at scale.
Screaming Frog vs OnCrawl: Pricing Comparison
Screaming Frog Pricing
- Free Version£0
500 URL crawl limit
- Paid License£199/yr
Unlimited crawling per user
- Log File Analyser£99/yr
Separate desktop product
- Volume LicensesDiscounted
Per-seat discounts for teams
OnCrawl Pricing
- ExplorerFrom €49/mo
Smaller projects, single user
- BusinessFrom €199/mo
Log analysis & integrations
- Infinite & BeyondCustom
Enterprise URL volume
- Add-onsVariable
Custom data, retention, AI
Pricing Analysis
Screaming Frog is one of the highest-ROI tools in SEO software — a £199/year license delivers professional-grade crawling that pays for itself on a single audit. OnCrawl prices scale with crawl volume and integrations, so the value calculation depends on how many seats use the platform and whether log analysis, custom data, and dashboards replace recurring manual work. Many enterprise programs run both: Screaming Frog for hands-on practitioners, OnCrawl as the always-on monitoring layer.
What Users Say: Screaming Frog vs OnCrawl Reviews
| Platform | Screaming Frog | OnCrawl |
|---|---|---|
| G2 Rating | 4.7 / 5 (150+ reviews) | 4.5 / 5 (60+ reviews) |
| Capterra Rating | 4.8 / 5 | 4.6 / 5 |
| TrustRadius | 9.0 / 10 | 8.6 / 10 |
Screaming Frog Feedback
“The single most useful tool in technical SEO. The custom extraction alone has paid for itself a hundred times over.”
— Technical SEO Lead, Agency
“We crawled a 1.4M URL migration with proper config — no other tool at this price could touch that workload.”
— Senior SEO Consultant
Common complaints
- Learning curve for new SEOs
- Log File Analyser sold separately
- Reports require formatting for stakeholders
OnCrawl Feedback
“Joining logs with crawl and analytics in one place changed how our enterprise SEO program operates.”
— Head of SEO, Marketplace
“The AI assistant turned crawl reports into something our merchandising team actually reads.”
— Senior SEO Manager, Retail
Common complaints
- Pricing scales quickly with volume
- Onboarding takes real investment
- Overkill for sites under ~50k URLs
Who Should Use What?
Use Screaming Frog if…
- You're an independent consultant or small agency
- Most projects are audits, migrations, and one-offs
- You need custom extraction with XPath/CSS/regex
- You value predictable, low license cost
- Log analysis is occasional, not daily
Use OnCrawl if…
- You run technical SEO on a very large site
- Log file analysis is a daily input, not a quarterly project
- You need to ingest custom data sources alongside crawl
- Stakeholders want dashboards, not spreadsheet exports
- SEO is a critical revenue channel justifying enterprise spend
Final Verdict
Screaming Frog wins on tactical depth and ROI. For any practitioner running crawls, redirect QA, custom extraction, and migrations, it's the most cost-effective serious crawler available — and most technical SEOs keep it on their laptop forever.
OnCrawl wins when crawl, log, GSC, analytics, and custom data must live together. Enterprise ecommerce, marketplaces, and publishers get measurable value from joined data, ongoing dashboards, and the AI assistant — workloads where a desktop crawler runs out of steam.
In practice, these tools are not mutually exclusive. Many enterprise SEO programs use OnCrawl as the always-on monitoring and reporting layer while keeping Screaming Frog on every practitioner's machine for fast investigation, migration QA, and custom-extraction work.