The 29 Best Free SEO Tools for 2025

It provides a full suite of features designed to take you from initial keyword research to final content publication. Semrush Writing Assistant shines if you’re already using their ecosystem, but might be overkill otherwise. This SEO Anomaly one of the best Surfer SEO alternatives is laser-focused on optimizing your existing content rather than generating it from scratch. For teams already running campaigns in Semrush, it’s a natural extension of your workflow. For everyone else, especially freelancers or small businesses just needing content optimization, more affordable standalone tools make more sense.

Google SERP Simulator

BrightLocal is ideal for local businesses that want to optimize their online visibility in their area while projecting a positive image to prospective customers. BrightLocal also offers a Simply Listings account for $2 per site pay-as-you-go plan or $100 per location, per year. With Simply Listings, you can expand your visibility by getting your company information into dozens of online business directories. The $100 plan gives you access to Active Sync and GBP Post Scheduler as well.

The best SEO tools of 2025 in full:

The term refers to the work of optimizing your website so that search engines can access, crawl and index it. The tools in this category help you find the best keywords and typically tell you how many searches per month a keyword has, plus a bunch more. Answer The Public is a super free tool to find more “question keywords”.

The database is huge and updated regularly, giving users access to up-to-date keyword and backlink metrics. For example, a keyword research tool might scan search engines to find what users are searching for and show volume, difficulty, and SERP features. A technical SEO tool might crawl your site to find broken links or missing tags. Content tools analyze top results and suggest how to optimize your page to match or outperform them. These tools pull from search engine APIs or run their own crawlers to surface trends and problems. Some tools, especially those using AI, also analyze content and suggest improvements based on top-performing pages, semantic relevance, and natural language processing.

• Some tools with higher monthly prices offer substantial annual discounts or lifetime purchase options that provide better long-term value.
• Yext has a ton of powerful features for local businesses that want to generate more customers from local and voice searches.
• It’s designed for marketers and content teams that want to plan, write, and improve content with the help of data-driven insights and natural language processing.
• SaleHoo shines with its intuitive interface, stellar support, and seamless Shopify integration.
• Get useful information about the quality and quantity of backlinks pointing to your website, ordered by their importance.

CanIRank for keyword competition

While it excels at producing large amounts of content, it’s not a complete SEO suite – it doesn’t offer features like backlink tracking or technical audits. Also, AI-generated text usually needs refinement to ensure accuracy and uniqueness. Our KeywordsFX tool offers a list of keyword ideas based on a starting keyword you provide. Simply enter a starting keyword to receive a list of related keywords you can target.

Along with helping you improve your rankings on the search engine results page (SERPS), SEO tools can help with keyword research and generating content that speaks to your audience. Another free resource that I find invaluable is Google Trends. This tool provides insights into the popularity of specific search queries over time, which helps identify trending topics and seasonal variations in search behavior.