The best Semrush alternatives
3 tools that do a similar job to Semrush, 1 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.
You're replacing
SemrushAn online visibility suite for keyword research, site audits, competitor analysis and AI search tracking.
- 1
Ahrefs
AI tool · Paid
An SEO platform best known for its backlink index, with keyword research, audits and AI content tools.
Best for: Backlink analysis; Content gap research
- 2
Moz Pro
AI tool · Paid
SEO software for keyword research, rank tracking and link analysis, known for its Domain Authority metric.
Best for: Small SEO teams; Learning SEO fundamentals
- 3

OpenSEO
Open source · MIT · ★ 26k
Open source SEO toolkit for keyword research, audits and backlinks, usable with AI agents.
Best for: People who find Semrush or Ahrefs too expensive or bloated; Small teams that want to self-host their SEO tooling
How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to Semrush. We don't take payment for placement.