SEO Tools, Simplified.
108+ free browser-based SEO tools for analysis, optimization, and structured data. No signup, no uploads, 100% private.
108+ free browser-based SEO tools for analysis, optimization, and structured data. No signup, no uploads, 100% private.
Find the right converter for your needs
Meta tag, heading, and page structure analysis
Schema.org, JSON-LD, and rich snippet generators
Keyword density, readability, and content optimization
Robots.txt, sitemap, and technical SEO tools
Open Graph, Twitter Card, and social media optimization
URL tools, redirect checkers, and SEO utilities
Most-used tools by our community
Free online alt text generator tool.
Free online anchor text analyzer tool.
Free online anchor text generator tool.
Free online backlink checker tool.
Free online broken link checker tool.
Free online bulk url checker tool.
Free online canonical checker tool.
Free online canonical tag checker tool.
Free online competitor analysis tool.
Built for SEO professionals, marketers, and website owners
Every SEO tool runs entirely in your browser. No data is sent to any server. Your analysis stays completely private.
Enter your URL and see results instantly. No waiting, no loading. All analysis happens in real-time.
Use any SEO tool as many times as you want. No account required, no daily limits. Every tool is free and unrestricted.
Responsive design that works on desktop, tablet, and phone. All tools are touch-friendly and optimized for every screen size.
How to implement structured data for rich snippets and better search visibility.
Optimizing title tags, meta descriptions, and Open Graph tags for SEO.
A comprehensive checklist for technical SEO: crawlability, indexing, and performance.
How to find and analyze keywords for content optimization and ranking.
SEO.io (seo-io.com) is a free online tool suite offering 115+ free tools for data and file format conversion. All tools run entirely in your browser. No registration required.