Whether you’re an SEO beginner, a small business owner, or a digital marketing pro, having the right tools can make a major difference in your results. But not every effective SEO tool has to cost a fortune. Many of the best features in 2025 are offered completely free.
At The SEO Fly, we believe in smart and efficient SEO that gets results. That’s why we’ve compiled this ultimate list of the best free SEO tools for 2025, across keyword research, content optimization, technical SEO, and analytics.
1. Google Search Console
Use for: Performance tracking, indexation issues, keyword performance
Still, the backbone of technical SEO, Google Search Console, lets you see how your site performs on Google Search. You can find out which keywords are driving traffic, fix indexing issues, and submit sitemaps.
Why it’s great: It gives you actual data directly from Google and is completely free.
2. Google Keyword Planner
Use for: Keyword research and search volume estimates
While built for Google Ads, this tool offers excellent data for SEO as well. You can explore keywords by region, get monthly search volume, and identify related queries.
Pro tip from The SEO Fly: Use it alongside other tools like Ubersuggest or AnswerThePublic for more content ideas.
3. Ubersuggest (Free Tier)
Use for: Keyword research, backlink data, site audits
Neil Patel’s Ubersuggest has become a go-to SEO platform. The free version gives you access to keyword suggestions, top-ranking pages, and backlink overviews.
Limitations: Daily search limits, but very usable for freelancers and small businesses.
4. AnswerThePublic
Use for: Finding content ideas and user intent keywords
This tool pulls Google autocomplete data and turns it into useful question-based keyword maps. It’s especially useful for content marketers and bloggers.
Use it to: Create FAQ pages, blog ideas, or voice search-optimized content.
5. Screaming Frog SEO Spider (Free Version)
Use for: Technical SEO audits, broken links, redirects, and duplicate content
The desktop-based SEO crawler lets you scan up to 500 URLs in the free version. You can analyze meta tags, heading structure, canonical tags, and more.
Tip: Use it weekly to spot broken internal links or thin content.
6. Ahrefs Webmaster Tools
Use for: Site audit, backlink analysis, performance overview
Ahrefs offers a free version for verified website owners. You get access to basic backlink data, site health issues, and content suggestions.
Why The SEO Fly loves it: It’s a gateway into one of the best premium SEO tools — free, yet powerful.
7. MozBar
Use for: On-page SEO analysis, domain authority check, SERP metrics
MozBar is a Chrome extension that lets you analyze any page on the web. You can view the page authority, domain authority, and even highlight nofollow links.
Useful for: Competitor analysis and outreach research.
8. SEO Minion
Use for: SERP previews, hreflang checks, on-page audits
Another excellent Chrome extension that’s completely free. SEO Minion lets you check title tags, meta descriptions, heading structure, and compare SERP results across locations.
The SEO Fly uses this during quick audits and when testing multiple pages for meta tag quality.
9. Google Trends
Use for: Content planning, trend forecasting, keyword seasonality
See what’s trending now and track keyword popularity over time. It’s especially useful for creating evergreen and seasonal content calendars.
Pro tip: Combine with Keyword Planner to validate rising terms.
10. CanIRank
Use for: Keyword difficulty analysis and actionable suggestions
Unlike other tools that just give data, CanIRank helps you understand why a page ranks and how you can outrank it. The free version is great for quick strategy insights.
Ideal for: Beginners who need direction on what to optimize next.
11. Bing Webmaster Tools
Use for: Technical SEO and site analytics for Bing
Often overlooked, but Bing has its suite of tools like GSC. It’s valuable, especially for older audiences, local search, or Microsoft-powered searches (Edge browser users).
Bonus: It even shows some keyword data Google hides.
12. GTmetrix
Use for: Page speed insights and Core Web Vitals
Page speed is a confirmed ranking factor. GTmetrix offers detailed speed reports and optimization tips to improve load times and user experience.
Tip: Use alongside Google PageSpeed Insights for a complete picture.
Final Thoughts
You don’t need a big budget to get started with SEO. The tools listed above are trusted by agencies, freelancers, and businesses worldwide—and they’re all free (at least at the basic level).
At The SEO Fly, we’ve used these tools across hundreds of projects to deliver measurable improvements in search rankings and ROI. Whether you’re building your SEO strategy from scratch or refining an existing one, these free tools can help you move forward with confidence.