# Screaming Frog SEO Spider vs SiteOne Crawler (2026): Free Alternative to Screaming Frog SEO Spider

Canonical: https://caniforkit.com/vs/screaming-frog-seo-spider-vs-siteone-crawler
Last updated: 2026-08-11

Compare Screaming Frog SEO Spider ($23.55/mo) vs SiteOne Crawler ($0/mo open source MIT alternative to Screaming Frog SEO Spider). Side-by-side breakdown of pricing, self-hosting setup, data storage, and practical trade-offs.

## Side-by-Side Comparison Matrix

| Feature / Metric | Screaming Frog SEO Spider | SiteOne Crawler |
| --- | --- | --- |
| Monthly Subscription | $23.55/mo | $0.00 / month |
| 1-Seat Annual Cost | $283/yr | $0.00 / year |
| 5-Person Team Annual Cost | $1,413/yr | $0.00 / year |
| 10-Person Team Annual Cost | $2,826/yr | $0.00 / year |
| License Model | Proprietary Commercial SaaS | MIT |
| Hosting / Runtime | Vendor Cloud | Local |
| Data Ownership | Stored on vendor servers | Runs locally and writes project results plus HTML, JSON or text reports and exports to the user's disk |
| GitHub Stars | Closed Source | ★ 841 |
| Code Repository | None | https://github.com/janreges/siteone-crawler |
| The Catch / Trade-off | Recurring subscription cost | It covers the common audit job, but it still has fewer deeply mature crawl controls, custom extraction workflows and integrations than Screaming Frog. |

## About SiteOne Crawler
A proper cross-platform crawler with JavaScript rendering, reports and raw exports; no license key hiding under the lily pad.

- **Installation**: Download a prebuilt desktop or CLI binary for Windows, macOS or Linux
- **Setup Notes**: None for ordinary crawling; JavaScript rendering needs Chrome or Chromium, or the one-time headless-shell download
- **Data Storage**: Runs locally and writes project results plus HTML, JSON or text reports and exports to the user's disk
- **Supported Platforms**: desktop, cli, one-click install
- **The Catch vs Screaming Frog SEO Spider**: It covers the common audit job, but it still has fewer deeply mature crawl controls, custom extraction workflows and integrations than Screaming Frog.

## Cost Savings Breakdown
Switching from Screaming Frog SEO Spider to SiteOne Crawler eliminates ongoing per-seat subscriptions:
- **Solo / 1-seat**: Save **$283/year**
- **5-person team**: Save **$1,413/year**
- **10-person team**: Save **$2,826/year**

## Frequently Asked Questions

### Is SiteOne Crawler a good free alternative to Screaming Frog SEO Spider?
Yes. SiteOne Crawler is a verified open source (MIT) replacement for Screaming Frog SEO Spider. A proper cross-platform crawler with JavaScript rendering, reports and raw exports; no license key hiding under the lily pad.

### What is the catch when switching from Screaming Frog SEO Spider to SiteOne Crawler?
It covers the common audit job, but it still has fewer deeply mature crawl controls, custom extraction workflows and integrations than Screaming Frog.

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