Best Free Tools for Keyword Research in 2025
Keyword research doesn’t have to be expensive. Whether you're a beginner blogger, freelance SEO expert, or small business owner — there are free tools that can help you find great keywords and grow your traffic.
In this article, we’ll explore the best free keyword research tools in 2025, their features, and how to use them effectively.
✅ 1. Ubersuggest by Neil Patel
Website: ubersuggest.com
Why it’s great:
Gives keyword ideas, volume, and SEO difficulty
Shows content ideas and backlink data
Free for up to 3 searches per day (with login)
Best for:
Beginners who want an easy-to-understand dashboard
✅ 2. Google Keyword Planner
Website: ads.google.com
Why it’s great:
Directly from Google’s own data
Accurate monthly search volume and competition
Great for PPC and SEO planning
Best for:
Marketers targeting local and global audiences
Note: You need a free Google Ads account to use it.
✅ 3. AnswerThePublic
Website: answerthepublic.com
Why it’s great:
Visualizes user questions around a keyword
Ideal for blog ideas and content gaps
Covers “why, what, how, when” type questions
Best for:
Content creators and bloggers
Limit: 1–2 searches/day on the free plan
✅ 4. Keyword Tool (keywordtool.io)
Website: keywordtool.io
Why it’s great:
Generates keyword suggestions from Google, YouTube, Amazon, Bing, etc.
Works great for long-tail keywords
Free version shows: Keyword ideas (not volume or competition)
Best for:
Finding long-tail keywords for niche audiences
✅ 5. Google Trends
Website: trends.google.com
Why it’s great:
Shows how search interest changes over time
Compare two or more keywords
Identify seasonal or trending keywords
Best for:
Choosing blog topics with rising popularity
✅ 6. Ahrefs Free Keyword Generator
Website: ahrefs.com/free-tools/keyword-generator
Why it’s great:
Get 100 keyword suggestions
Shows keyword difficulty score
Data for Google, Bing, YouTube, and Amazon
Best for:
Quick research on multiple platforms
✅ 7. Soovle
Website: soovle.com
Why it’s great:
Instant keyword suggestions from Google, YouTube, Bing, Yahoo, Amazon, Wikipedia
Super fast and clean interface
Best for:
Brainstorming content ideas across platforms
✅ 8. Google Search Itself (Autocomplete)
How to use it:
Start typing your keyword in the Google search bar
Look at the autocomplete suggestions
Scroll down and check “Related Searches”
Best for:
Discovering real user queries and intent
✅ 9. Keyword Surfer (Chrome Extension)
Website: keywordsurfer.com
Why it’s great:
View keyword volume directly in Google search results
Free Chrome extension
See similar keyword suggestions while browsing
Best for:
On-the-go keyword research while searching
✅ Final Thoughts
You don’t need to spend money to start doing keyword research. These free tools in 2025 are powerful enough to help you:
Find blog ideas
Target SEO keywords
Discover long-tail phrases
Track trends
Pick 2–3 that suit your needs and start building SEO-friendly content today!