Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 AhrefsHelps marketers drive visibility across AI search, SEO, content and social | ReviewsNone yetWrite one for Ahrefs | Lowest paid plan$129per monthLite, as of October 19, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
 MangoolsDiscover easy-to-rank keywords, identify competitors' weaknesses, and track rankings across LLMs and search | ReviewsNone yetWrite one for Mangools | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APIYes | Runs onChrome extension | |
 Screaming Frog SEO SpiderWebsite crawler for Windows, macOS and Ubuntu for technical SEO site audits | ReviewsNone yetWrite one for Screaming Frog SEO Spider | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWindows, macOS, Linux | Main features |
 SeobilityAll-in-one SEO software to win top search rankings and appear in AI-generated answers. | ReviewsNone yetWrite one for Seobility | Lowest paid planSee plans | Free planYes | Free trial14 days | Public APINot confirmed | Runs onNot confirmed |
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a free plan. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed