Can I open-source Semrush?
YES · mature open-source replacementYes. Plausible (23k stars), Matomo (20k stars), Claude SEO (14k stars) are mature open-source replacements for Semrush — self-host in one command and stop paying $139/mo.
They pay for market data and competitive intelligence that a solo builder cannot cheaply recreate.
xkeyword database
xcompetitor intelligence
xbacklink/PPC data
xAI visibility data
xreports
xintegrations
xdata freshness
These projects already replace it, free.
CClaude SEOClaude SEO is a free, open-source SEO toolkit for Claude Code — with **25 sub-skills, 18 specialist agents, 32 commands, and 8 optional extensions.** Run `/seo setup`, check `/seo doctor`, and start your audit. open source↗QQiaomu SEOAI-powered SEO skill for Claude Code, Cursor, and Codex covering technical audits, research, planning, implementation, and verification across Google, Bing, and AI search.open source↗PPlausibleLightweight, privacy-friendly, cookieless web analytics in a single Docker deploymentopen source↗What each one is, in full: Claude SEO · Qiaomu SEO · Plausible
all 6 open-source alternatives to Semrush →· no votes, no pay-to-list · just what's real
Semrush pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| seo | $139/workspace | $117.33/workspace | 5 projects/sites; 500 tracked keywords. |
| starter | $199/workspace | $165.17/workspace | 5 projects/sites; 500 tracked keywords; 50 daily AI prompts; 1 AI brand domain; 300 AI-visibility reports/day. |
| pro+ | $299/workspace | $248.17/workspace | 15 projects/sites; 1,500 tracked keywords; 100 daily AI prompts. |
| advanced | $549/workspace | $455.67/workspace | 40 projects/sites; 5,000 tracked keywords; 200 daily AI prompts; API access. |
| enterprise | custom | — | Custom projects, keyword volume, AI prompts, users, data access, API capacity, and support. |
free tier10 requests/day with 10 results/report; 1 Site Audit project up to 100 pages/month; 1 Base PDF report; no historical data
billingmonthly + annual (annual saves up to 17%)
hidden costsExtra users start at $45/month; Lead Generation is $90/month; Base Reports are $10 each and Pro Reports $20 each. Standalone AI Visibility starts at $99/domain/month on annual billing, with extra domains, prompts, and seats charged separately.
verified 2026-08-14 · source ↗
Can I open-source Semrush?
Yes. Claude SEO replaces Semrush today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Semrush cost?
Semrush costs about $139/month (SEO, checked 2026-08-14), which is $1668 per year. That's what you save by replacing it with open source.
What do I lose by replacing Semrush?
Honestly: keyword database; competitor intelligence; backlink/PPC data; AI visibility data; reports; integrations; data freshness. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Semrush?
Yes: Claude SEO (Claude SEO is a free, open-source SEO toolkit for Claude Code — with **25 sub-skills, 18 specialist agents, 32 commands, and 8 optional extensions.** Run `/seo setup`, check `/seo doctor`, and start your audit. ) Qiaomu SEO (AI-powered SEO skill for Claude Code, Cursor, and Codex covering technical audits, research, planning, implementation, and verification across Google, Bing, and AI search.) Plausible (Lightweight, privacy-friendly, cookieless web analytics in a single Docker deployment) All 6 curated open-source alternatives are at caniopensourceit.online/semrush/alternatives.