The Netpeak Spider alternative for Mac, Linux & AI-native workflows
Cross-platform (Mac, Windows, Linux), free, and built for AI-assisted SEO workflows — the Netpeak Spider alternative that doesn't need Windows or a subscription.
What crawler4seo does better
- crawler4seo runs on macOS, Windows AND Linux — Netpeak Spider is Windows-only (macOS requires a workaround)
- Free and open-access for all features — Netpeak Spider requires a monthly subscription
- Built-in internal-link graph with PageRank and HITS — not a core Netpeak Spider feature
- Schema.org Rich Results eligibility per Google type + full hreflang reciprocity audit
- Native MCP integration for AI-assisted SEO analysis
Netpeak Spider's strengths
- •Low RAM usage — one of the most memory-efficient desktop crawlers
- •Fast crawl speed, works well on low-spec Windows machines
- •Integrates with Netpeak Checker for SERP/backlink data
- •Affordable entry price vs Screaming Frog
We try to stay honest — if one of these matters more than free + local + AI-native for your use case, Netpeak Spider is a legitimate choice.
crawler4seo vs Netpeak Spider
Feature-by-feature comparison across 24 dimensions — pricing, deployment, crawl capabilities, analysis depth, data ownership and AI integration.
| Feature | crawler4seo | 🇺🇦Netpeak Spider |
|---|---|---|
| Pricing | ||
Starting price | Free (early access) | From $19/mo |
Free tier Usable without paying | Included | 14-day trial |
License model | Free — desktop app | Monthly subscription |
Account required | ||
| Deployment | ||
Hosting | Local desktop | Local desktop |
macOS | Included | Unofficial / Windows-first |
Windows | Included | |
Linux | Included | |
| Crawling | ||
URL limit (free/paid) | Unlimited | Unlimited on paid |
JavaScript rendering | Included | |
Scheduled crawls | Included | Limited scheduling |
Crawl diff / regression detection | Included | |
| Analysis | ||
On-page + technical SEO analyzers | 20 built-in | Broad |
Internal-link graph + PageRank | Included | Internal link metrics, no PageRank |
Schema.org Rich Results eligibility | Included | Detection only |
hreflang reciprocity audit | Included | |
Core Web Vitals (real CrUX) | Included | Via PSI integration |
Sitemap coverage cross-ref | Included | |
GEO audit (AI-engine readiness) Per-bot robots.txt rules for AI crawlers, llms.txt, schema coverage, JS-dependency risk | Included | |
| Data | ||
Data privacy | 100% local | 100% local |
Multi-sheet XLSX export | Included | |
Custom CSS/regex extraction | Included | |
| AI & Integrations | ||
MCP server (AI-native) | Included | |
CLI / local API | Included | |
Open source | Source-visible, binaries free | |
Data reflects publicly documented features and pricing as of April 2026. Please verify on each vendor's site for the latest changes.
Frequently asked questions
Things people ask before switching.
Is crawler4seo really free compared to Netpeak Spider?+
Yes. crawler4seo is free to download and use with no URL limit during early access — you don't need a credit card or an account. Netpeak Spider requires From $19/mo.
Does crawler4seo run locally or in the cloud?+
crawler4seo is a desktop app (Electron) that runs 100% on your machine. Your crawl data is stored in a local SQLite database and never leaves your computer. The only outbound traffic is the target site you crawl and an optional Google PageSpeed API call for Core Web Vitals.
Can I replace Netpeak Spider with crawler4seo?+
For most technical SEO audit workflows — yes. crawler4seo ships 20 analyzers (including a GEO audit for AI-engine readiness), internal-link graph with PageRank, Schema.org Rich Results eligibility, hreflang reciprocity, Core Web Vitals, sitemap coverage, crawl diffing and scheduled crawls. If your use case depends on Netpeak Spider-specific integrations we don't cover, you can run both side-by-side — crawler4seo is free.
What does "MCP integration" mean, and why does it matter?+
MCP (Model Context Protocol) is Anthropic's open protocol that lets AI assistants like Claude securely call tools on your machine. crawler4seo ships an MCP server, so you can point Claude at your crawl and ask questions like "which pages lost PageRank since yesterday?" or "list all Product pages with invalid Schema.org". No other crawler in this category ships this natively.
What platforms does crawler4seo support?+
macOS (Intel and Apple Silicon), Windows 10/11 (64-bit) and Linux (AppImage). All builds are free during early access.
Does crawler4seo run on macOS and Linux?+
Yes — crawler4seo ships native builds for macOS (Intel and Apple Silicon), Windows and Linux (AppImage). Netpeak Spider is Windows-first with limited macOS support, so crawler4seo is the more portable choice.
Is crawler4seo as fast as Netpeak Spider on large sites?+
For crawls up to low hundreds of thousands of URLs, crawler4seo's SQLite-backed pipeline is comparable in speed. For crawls above a few million URLs, a cloud crawler (OnCrawl, JetOctopus, Lumar) may be a better fit.
Try the Netpeak Spider alternative — free
Download crawler4seo and run a full technical audit in minutes. No account, no credit card, no URL limit. Your data stays on your machine.