Open Source SEO Tools using JavaScript
A curated collection of the best open source tools that analyze website performance, optimize content visibility, track rankings, and improve search engine results. using JavaScript.
Self-hosted SEO platform for keyword, backlink, and rank tracking
Stars
Stars growing quickly over the last 30 days26,086Last commit
3 days agoLicense
MIT
Manage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses DataForSEO.
Open Source Alternative to:
Track and improve your brand's visibility in AI search
Stars
Stars growing quickly over the last 30 days226Last commit
8 hours agoLicense
MIT
Monitors how your brand appears across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms, then turns those insights into prioritized content and optimization actions.
Open Source Alternative to:
Track your brand's visibility across AI answer engines
Stars
Stars growing quickly over the last 30 days270Last commit
18 days agoLicense
AGPL-3.0
GEO tool that queries ChatGPT, Claude, Gemini, and Perplexity with your buyers' questions, then shows you who gets recommended and how to close the gap.
Open Source Alternative to:
Track and improve your brand's visibility in AI answers
Stars
Stars growing quickly over the last 30 days197Last commit
9 hours agoLicense
MIT
Tracks how often AI tools like ChatGPT, Claude, and Perplexity mention or cite your brand, then fixes the gaps through AEO strategy and content work.
Open Source Alternative to:
c15t – Open-source cookie banner, built for control and lightening fast modern web apps.
c15t