Free Alternatives to Semrush and Ahrefs

Semrush starts at $140/month. Ahrefs at $129. For a solo founder or a small agency, that's real money. The good news: most of what you need is available free if you're willing to combine 3–4 tools instead of one. Here's the stack.

Site audits → FreeSEO (free, unlimited)

140+ SEO checks, no scan limit, no credit card. The auto-fix on WordPress is genuinely unique — neither Ahrefs nor Semrush do that.

Backlinks → Ahrefs Webmaster Tools (free with verification)

Free tier limited to your own verified domains. Solid backlink data, decent keyword data. Less complete than the paid product but covers 80% of the use case.

Keyword research → Google Keyword Planner + Search Console

Search Console shows keywords you already rank for and where you're at position 11–20 (the easiest wins). Keyword Planner gives volume estimates. Together they cover the basics free.

Rank tracking → Search Console + manual

Search Console gives average position and clicks for every query. Not real-time, but it's free and the most accurate source for YOUR queries (because it's coming from Google itself).

Competitor analysis → Similarweb (free tier) + manual SERP

Similarweb's free view shows traffic estimates for any site. For keyword competition, manually search your top terms in incognito and see who's ranking.

When you actually need to pay

If you're an agency tracking 50+ client sites, doing competitive intelligence as a service, or running large-scale link campaigns — yes, Semrush or Ahrefs pays back. For solo operators and small businesses, the free stack above gets you 80% there.