If you’re working on a budget or just starting out in SEO, you don’t need to invest in expensive tools right away. There are dozens of free SEO tools that offer real value—helping with everything from keyword research and on-page SEO to backlinks and performance tracking.
Below is a handpicked list of 50+ free SEO tools to grow your traffic, improve rankings, and optimize your site in 2025—without spending a dime.
Keyword Research Tools
1. Google Keyword Planner
Classic, reliable, and free with a Google Ads account.
2. Ubersuggest (Free Tier)
Shows search volume, difficulty, and content ideas.
3. AnswerThePublic
Visualizes questions and phrases people search for.
4. Keyword Surfer (Chrome Extension)
Real-time keyword data in Google Search.
5. AlsoAsked
Find related questions grouped by intent.
Technical SEO Tools
6. Google Search Console
Essential for monitoring your site’s health and indexing.
7. Bing Webmaster Tools
Similar to GSC, with unique features like keyword research.
8. Screaming Frog (Free Version)
Crawls up to 500 URLs to find broken links, metadata issues, etc.
9. SEO Analyzer by Neil Patel
Technical SEO audit and suggestions.
10. Ahrefs Webmaster Tools
Free for verified sites; includes site audit and link analysis.
Backlink Analysis Tools
11. Ahrefs Free Backlink Checker
Shows top 100 backlinks for any domain.
12. Ubersuggest Backlinks
Basic link data with free reports.
13. SEO Review Tools – Backlink Checker
Extracts backlinks from their database.
14. OpenLinkProfiler
Unlimited link data for any domain.
On-Page SEO Tools
15. Yoast SEO (WordPress Plugin)
Guides content optimization within WordPress.
16. Rank Math (WordPress Plugin)
Advanced free SEO features with schema markup.
17. Seobility
On-page audit, keyword check, and more.
18. Detailed SEO Extension (Chrome)
Quick access to on-page SEO data.
Content Optimization Tools
19. Grammarly
Correct grammar, tone, and readability.
20. Hemingway Editor
Helps simplify and clarify content.
21. SEO Review Tools – Content Analysis
Checks keyword placement, heading structure, and more.
22. Surfer AI (Free Chrome Extension)
SEO data directly in Google search.
Site Speed & Core Web Vitals Tools
23. Google PageSpeed Insights
Performance metrics + optimization suggestions.
24. GTmetrix
Visual performance reports and waterfall view.
25. WebPageTest
In-depth performance testing with filmstrip view.
Reporting & SERP Tracking
26. Google Data Studio (Looker Studio)
Create beautiful SEO dashboards with GSC & GA.
27. SERProbot
Free daily rank tracking (limited keywords).
28. Nightwatch.io Free SERP Checker
Accurate, location-based SERP results.
AI & Content Assist Tools
29. ChatGPT Free Plan
Generate SEO ideas, titles, schema, content outlines.
30. Writesonic (Free Tier)
AI copywriting for meta descriptions, intros, etc.
Structured Data & Schema Markup
31. Google Structured Data Testing Tool (Legacy)
Validate schema markup on your pages.
32. Schema Markup Generator by Merkle
Generate JSON-LD easily for common schemas.
Bonus: Chrome Extensions Every SEO Should Use
33. SEO Minion
On-page SEO helper with H1 tags, links, SERP previews.
34. Keywords Everywhere (Free Version)
View volume and CPC data directly in SERPs.
35. Check My Links
Quickly find broken links on any page.
Other Useful SEO Tools
- Robots.txt Tester
- XML Sitemaps Generator
- Broken Link Checker (Online)
- Redirect Checker by HTTPStatus.io
- Google Trends
- Google Alerts
- LSIGraph (Limited Free Use)
- MozBar (Free Moz Extension)
- Plagiarism Checker by SmallSEOTools
- TinyPNG (Image Compression)
- Pingdom Tools (Uptime/Speed)
- Woorank (Free Site Review)
- Bulk DA Checker (by Prepostseo)
- GTmetrix (Performance Insights)
- SERanking Free Tools
- CanIRank (Limited Free Reports)
Final Thoughts
You don’t need to spend a fortune to get real SEO results. These 50+ tools give you a solid foundation for keyword research, backlinks, technical audits, and content optimization—without paying for premium software.
