Open source alternatives to Ahrefs

1 open source project replaces Ahrefs, ranked by how safe each is to depend on.

64 · Stable

SEO suite with keyword research, rank tracking, backlink analysis and site audits, plus an MCP server for AI agents.

Free to useMIT★ 23kLast commit yesterday

64 · Stable

At a glance

Health and license are separate verdicts: a project can be well maintained and still not be open source.

Project	Health	License	Stars	Last commit
OpenSEO	64 · Stable	Free to useMIT	23k	yesterday

Ahrefs is a paid SEO product. See all open source SEO tools, ranked the same way.

Scores last refreshed from GitHub on 9 October 2026. How we score.