Best Free Tools for Keyword Research in 2025
Keyword research is the backbone of SEO, and luckily, there are many free tools you can use to find great keywords without breaking your budget.
In this article, we will cover the top free keyword research tools for 2025, their features, and how to get the most out of them.
✅ 1. Google Keyword Planner
A free tool by Google Ads designed primarily for advertisers but very useful for SEO keyword research.
Provides search volume data, keyword ideas, and competition levels.
Great for finding keywords related to your business niche.
Requires a Google Ads account, which is free to create.
✅ 2. Google Trends
Shows the popularity of search queries over time.
Helps find trending and seasonal keywords.
Can compare up to five keywords to see which is gaining momentum.
Useful for identifying emerging topics and local interest.
✅ 3. Ubersuggest
Created by Neil Patel, Ubersuggest offers keyword suggestions, search volume, SEO difficulty, and content ideas.
Has a limited free tier with daily searches.
Great for beginners wanting keyword data without complex tools.
✅ 4. AnswerThePublic
Focuses on questions and phrases people ask related to your keyword.
Excellent for finding long-tail keywords and content ideas.
Generates visual keyword maps for easy browsing.
✅ 5. Keyword Surfer (Chrome Extension)
A free Chrome extension that displays keyword search volumes and related keywords directly in Google search results.
Great for quick on-the-go keyword research while browsing.
✅ 6. Moz Keyword Explorer (Free Version)
Offers limited keyword queries per month.
Provides keyword difficulty, organic CTR, and priority scores.
Helpful for prioritizing keywords based on multiple factors.
✅ 7. Soovle
Aggregates keyword suggestions from multiple sources like Google, Bing, YouTube, and Amazon.
Useful for multi-platform keyword research.
✅ Tips for Using Free Tools Effectively
Combine multiple tools to get comprehensive keyword data.
Use Google Trends to check seasonality before targeting a keyword.
Check competitor keywords with Ubersuggest’s free features.
Use question-based keywords from AnswerThePublic to create helpful content.
✅ Final Thoughts
Free keyword research tools in 2025 are powerful enough for most small to medium websites and beginners. Using a mix of these tools helps you uncover valuable keywords, understand user intent, and improve your SEO strategy without any investment.
Start with Google Keyword Planner and Google Trends, then expand to tools like Ubersuggest and AnswerThePublic for deeper insights.