Open source focus
Open Source Alternatives to Semrush
7 open source SEO Tools options similar to Semrush, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Majestic Labs35SEOLondon, United Kingdom$201.2MOpen source
AntropusAgentic SEOMadrid, SpainOpen source
- Seo Mcp AI41Agentic SEO
Open source
Chiefcontent23Content MarketingOpen source
- Aibest8AI Search Engine
Open source
- WiretensorsAI Search Engine
Open source
- PixellizeDeveloper Tools
Open source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Majestic Labs | SEO | Open source | London, United Kingdom | $201.2M | 35 |
| Antropus | Agentic SEO | Open source | Madrid, Spain | — | — |
| Agentic SEO | Open source | — | — | 41 | |
| Chiefcontent | Content Marketing | Open source | — | — | 23 |
| AI Search Engine | Open source | — | — | 8 | |
| AI Search Engine | Open source | — | — | — | |
| Developer Tools | Open source | — | — | — |