50 Free SEO Tools You Can Use in 2025

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Here’s a detailed list of free SEO and writing tools to help with keyword research, content optimization, technical SEO, and high-quality writing.

🔍 Free SEO Tools

Keyword Research

1. Google Keyword Planner – Finds relevant keywords with search volume and competition data.
2. Ubersuggest – Provides keyword ideas, search volume, and SEO difficulty.
3. AnswerThePublic – Generates common user search queries for content ideas.
4. Keyword Sheeter – Extracts thousands of Google autocomplete suggestions.
5. Keyword Surfer – Displays search volume and CPC data in Google search results.

On-Page SEO & Content Optimization

6. Google Search Console – Tracks site performance, indexing, and search queries.
7. Rank Math (Free) – WordPress plugin for meta tags, sitemaps, and SEO optimization.
8. Yoast SEO (Free) – Helps optimize meta titles, descriptions, and content readability.
9. PageSpeed Insights – Analyzes website speed and provides improvement suggestions.
10. Hemingway Editor – Improves readability by identifying complex sentences.

Technical SEO & Site Audit

11. Screaming Frog SEO Spider (Free for 500 URLs) – Crawls websites to find broken links and SEO issues.
12. Google Mobile-Friendly Test – Checks if a website is mobile-friendly.
13. Google Schema Markup Testing Tool – Validates structured data for rich snippets.
14. SEO Analyzer – Scans websites for SEO issues and optimization opportunities.
15. GTmetrix – Analyzes page load speed and performance scores.

Backlink Analysis

16. Ahrefs Backlink Checker (Free) – Checks top backlinks and domain authority.
17. Moz Link Explorer (Free) – Analyzes backlinks, domain authority, and linking domains.
18. SEO Spyglass (Free) – Desktop tool for backlink data and competitor analysis.
19. OpenLinkProfiler – Provides free backlink analysis, including new and lost links.
20. Small SEO Tools Backlink Checker – Simple tool to check backlinks of any site.

Rank Tracking & SERP Analysis

21. SERP Robot (Free 10 Queries Daily) – Tracks keyword rankings in Google.
22. WhatsMySerp (WMS) – Free SERP checker and keyword tracker.
23. Google SERP Snippet Optimizer – Previews meta titles and descriptions in search results.
24. SEO Minion (Chrome Extension) – Analyzes on-page SEO, checks broken links, and SERP analysis.
25. SERP Checker by Mangools (Limited Free Searches) – Tracks keyword positions in SERPs.

Local SEO

26. Google Business Profile (GBP) – Manages local business listings in Google Search and Maps.
27. Whitespark’s Local Citation Finder – Finds local citation opportunities.
28. BrightLocal’s Citation Tracker – Tracks local business listings.
29. PlePer Local SEO Tools – Various free tools for Google My Business optimization.
30. GMB Everywhere (Chrome Extension) – Helps optimize Google My Business profiles.

Other Useful SEO Tools

31. Google Trends – Shows keyword search trends over time.
32. SimilarWeb (Free) – Provides traffic analysis and competitor insights.
33. SEOquake (Chrome Extension) – Displays SEO metrics like backlinks and keyword density.
34. Woorank (Free Analysis) – Audits websites for SEO issues.
35. Google Analytics – Tracks website traffic, user behavior, and conversion rates.

📝 Free Writing Tools

Grammar & Readability

36. Grammarly (Free Version) – Checks grammar, spelling, and sentence structure.
37. Hemingway Editor – Highlights complex sentences and readability issues.
38. QuillBot (Free) – Paraphrasing tool for rewriting and improving content.
39. ProWritingAid (Free Version) – Checks grammar, readability, and writing style.
40. Slick Write – Identifies grammar, passive voice, and wordiness issues.

Plagiarism Checkers

41. Duplichecker – Free plagiarism checker for content.
42. Plagscan (Free Version) – Limited free plagiarism detection for online content.
43. Small SEO Tools Plagiarism Checker – Checks duplicate content online.

Content Generation & AI Writing

44. Copy.ai (Free Plan) – AI-powered writing assistant for marketing and SEO content.
45. Rytr (Free Plan) – AI writing tool for blog posts, ads, and social media.
46. Writesonic (Free Version) – AI-generated content for blogs, ads, and websites.
47. ChatGPT (Free Version) – AI chatbot that can help generate ideas and drafts.

Idea & Headline Generators

48. Portent’s Content Idea Generator – Generates blog title ideas based on keywords.
49. TweakYourBiz Title Generator – Generates hundreds of blog title suggestions.
50. CoSchedule Headline Analyzer – Scores and improves blog post titles for SEO.

Need Help Choosing the Right Tools?

Are you looking for tools for a specific purpose (e.g., SEO audits, content writing, or keyword research)? Let me know, and I can suggest the best ones for your needs! 😊