Best free SEO software

Ranked products

1. Frase

   Frase is in the joint-leading shortlist because:

   • Frase supports free plan.
   • Frase supports free trial.
   • Frase supports keyword research.

   Score: 15/18 · verified criteria: 3/4

2. Mangools

   Mangools is in the joint-leading shortlist because:

   • Mangools supports free plan.
   • Mangools supports free trial.
   • Mangools supports keyword research.

   Score: 15/18 · verified criteria: 3/4

3. Rank Math

   Rank Math is in the joint-leading shortlist because:

   • Rank Math supports free plan.
   • Rank Math supports free trial.
   • Rank Math supports keyword research.

   Score: 15/18 · verified criteria: 3/4

4. Semrush

   Semrush is in the joint-leading shortlist because:

   • Semrush supports free plan.
   • Semrush supports free trial.
   • Semrush supports keyword research.

   Score: 15/18 · verified criteria: 3/4

Criteria comparison

Products are ranked only from verified, sourced facts. Missing evidence remains unknown and does not count as a negative claim.

Method and alternate format

Only products meeting the evidence threshold and coverage-gap rule are ranked. Missing facts earn no points and are not treated as negative claims.

Read the methodology · Read the Markdown version