Alpha Crawler vs Crab
Alpha Crawler
alphacrawler.org
Crab
crab.soSide by side
| Figure | Alpha Crawler | Crab |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 1 |
| Spec score · Website Audit software | 8.8 (#2) | 8.2 (#7) |
| Spec score · SEO tools | 8.1 (#83) | 7.7 (#134) |
| Exports | Reports can be exported as filtered CSV and XLSX files, and the audit page also describes PDF action-plan exports. | Crab can generate a downloadable XML sitemap of crawled URLs. |
| Free plan | Yes | Yes |
| JavaScript rendering | A rendering mode analyzes client-rendered React, Vue, Angular and Next.js sites alongside server-rendered sites. | Crab can render JavaScript sites with headless Chrome, including React, Vue, and other single-page applications. |
| Product | Alpha Crawler is a technical SEO crawler that audits site structure, metadata, schema markup, AI search visibility, and site performance. | Crab is a desktop SEO crawler for auditing websites. |
| Site audit | Yes | Yes |
| Support | The site publishes [email protected] and says typical replies arrive within one to two business days. | The homepage directs users with questions to GitHub. |
Plans
In their own words
Alpha Crawler
Alpha Crawler has no write-up on Specifiction yet; its figures are above.