Open source Semrush alternative: keyword research, rank tracking, site audits, backlinks, AI visibility. Docker or Cloudflare deploy, BYO DataForSEO key. MIT.
OpenSEO is an open source alternative to Semrush and Ahrefs. Open source Semrush alternative: keyword research, rank tracking, site audits, backlinks, AI visibility. Docker or Cloudflare deploy, BYO DataForSEO key. MIT. MIT licensed, 4.6k GitHub stars, hosted version available, self-host with Docker, and last released 2026-07-19.
Should you switch?
Freelancers, indie developers, and small teams who want a pay-as-you-go SEO suite without a $100/month Semrush or Ahrefs subscription. You bring your own DataForSEO API key and pay only for the data you use. Docker Compose gets you running in minutes locally; Cloudflare Workers deploy lets you share one instance across a team. The built-in MCP server connects your AI coding agent to your SEO data directly.
You want an all-in-one hosted SEO suite with no setup. OpenSEO requires a DataForSEO API key regardless of deployment mode: you pay DataForSEO directly per API call. Local Docker mode has no auth by default. The hosted tier on openseo.so adds 28% to DataForSEO request costs.
Local Docker mode runs with auth disabled and should only be exposed behind your own auth-protected reverse proxy or private network. DataForSEO API credits are charged per request and cost estimates vary with usage. Anonymous telemetry is enabled by default on self-hosted installs; disable with OPENSEO_TELEMETRY_DISABLED=1 in your .env file.
In the product
Community proof
Some quotes here endorse the approach rather than report first-hand use, or report a problem. We label those.
"Right now open-seo seems to be tied to a single account/user (me), so I can't have anyone else log in and use the instance under their own identity, they'd have to use my credentials directly, which isn't ideal for testing, handoff, or letting a teammate poke around independently."
"Apps looking super interesting. Would love to see map result keywords being tracked for a specific business added to the roadmap too. I've built a tool to this on my own but having it part of a self-hosted tool would be fantastic."
Maintenance health
Can you do it today?
cp .env.example .env && docker compose up -dGitHub
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