Certainly! There are several free SEO tools available that can help you optimize your website without costing you anything. Here are some notable ones:

1. Google Analytics:

   • Purpose: Provides in-depth insights into website traffic and user behavior.
   • Key Features: Traffic sources, user demographics, page views, and more.

2. Google Search Console:

   • Purpose: Monitors and optimizes website performance in Google search results.
   • Key Features: Search analytics, crawl reports, and indexing status.

3. Yoast SEO:

   • Purpose: WordPress plugin for on-page SEO optimization.
   • Key Features: Content analysis, XML sitemaps, and meta tag optimization.

4. Google PageSpeed Insights:

   • Purpose: Analyze the speed and performance of your website on both mobile and desktop devices.
   • Key Features: Provides suggestions to improve page speed.

5. Ubersuggest:

   • Purpose: Offers keyword suggestions, content ideas, and backlink data.
   • Key Features: Keyword overview, content ideas, and backlink analysis.

6. Keyword Planner (Google Ads):

   • Purpose: Helps with keyword research and provides insights into search volume.
   • Key Features: Keyword suggestions, search volume data, and competition analysis.

7. AnswerThePublic:

   • Purpose: Generates content ideas based on common questions people ask on the internet.
   • Key Features: Visualizes keyword variations and questions related to a topic.

8. GTmetrix:

   • Purpose: Analyze the speed and performance of your website, providing actionable recommendations.
   • Key Features: Page load time, page size, and performance scores.

Remember that while these tools are free, some may have limitations compared to their premium counterparts. It's often beneficial to use a combination of these tools to get a comprehensive understanding of your website's performance and areas for improvement.