Free Keyword Research Tools That Actually Work in 2024
You don’t need a $99/month Ahrefs subscription to find keywords that rank.
I’ve tested dozens of free tools over the past year. Some are gold. Some are pure junk. The ones below won’t just give you data—they’ll help you find content gaps your competitors missed.
Here’s the honest breakdown, plus a few workflows most bloggers ignore.
Why “Free” Doesn’t Mean “Worthless”
Most people think free keyword tools only show broad search volume ranges or force you into a 10-query daily limit. That was true in 2018. Not anymore.
In 2024, Google’s own autocomplete and “People Also Ask” boxes are more predictive than any paid API. And several freemium tools now offer real SERP analysis—if you know where to click.
The trick is stacking two or three free tools to get the same depth as a paid suite. I’ll show you that exact stack below.
The 7 Best Free Keyword Research Tools in 2024
1. Google Keyword Planner (Still the Baseline)
Yes, it’s built for ads. But you can use it for organic research without spending a cent.
How to make it useful for SEO: - Set your match type to “Exact” (not “Broad”) to see realistic volumes - Click “Get results” and then sort by “Competition (Low)” to find low-hanging fruit - Download the CSV and filter for keywords with 100–500 monthly searches—those are your sweet spot for new blogs
The catch: Google lumps close variants together now, so exact numbers are fuzzy. Use it for direction, not precision.
2. Ubersuggest (Neil Patel’s Free Tier)
Ubersuggest gives you 3 free searches per day (or 150 if you create a free account and connect a Google account). That’s enough for a side project.
Best feature: The “Keyword Ideas” tab shows content ideas grouped by topic, not just a list of terms. You’ll spot long-tail phrases like “how to remove rust from cast iron skillet” that are way easier to rank for than “cast iron care.”
Pro tip: Use the “SERP Analysis” section to see the top 5 ranking pages’ estimated visits and backlinks. If the #1 result has only 20 backlinks, that’s your target.
3. AnswerThePublic (Free Version, Limited)
This tool visualizes search questions, prepositions, and comparisons. The free version shows a limited set of results, but it’s still enough to brain-dump 50+ long-tail keywords in one sitting.
Why it’s valuable: It pulls from Google autocomplete, so you’re seeing real user queries, not guessed ones.
Use it for: Blog post outlines, FAQ sections, and YouTube video titles.
4. Keyword Surfer (Chrome Extension)
This one is a game-changer for on-the-fly research. Install the extension, type any keyword into Google, and it overlays search volume, CPC, and related keywords directly in the SERP.
What makes it special: - It shows estimated word count for the top-ranking pages - You can see the domain authority of each result without leaving Google
My workflow: When I see a competitor ranking with a thin 800-word post, I open Keyword Surfer, check the volume, and immediately pitch a 2,000-word upgraded version.
5. Google Trends (Not Just for Seasonal Stuff)
Most people use Trends to check holiday spikes. Wrong. Use it to find emerging topics before they peak.
Advanced trick: Compare 3–5 related terms (e.g., “air fryer recipes” vs. “air fryer chicken” vs. “air fryer accessories”). If one is rising steadily while others plateau, that’s your content angle.
Another hidden gem: The “Related Queries” section at the bottom shows “Breakout” terms—those growing over 5,000% year-over-year. Those are your early-mover opportunities.
6. Keyword Sheeter (Infinite Suggestions)
This tool generates thousands of long-tail keywords by scraping Google autocomplete from multiple countries and languages.
Is it spammy? The UI looks outdated, and the data is raw (no volume or difficulty). But if you need niche ideas—like “best running shoes for flat feet with plantar fasciitis”—it’s a goldmine.
How to use it properly: Export the list, paste it into Google Sheets, and filter for terms with 2–4 words. Then drop those into Ubersuggest or Keyword Surfer for volume checks.
7. Ahrefs Free Webmaster Tools (Yes, It’s Free)
Most people forget Ahrefs offers a free tier for site owners. If you verify your website with them, you get access to: - Site Explorer (limited) for competitor backlink analysis - Keywords Explorer (limited) with 5 free searches per week - Content Gap feature (find keywords your competitors rank for, but you don’t)
The catch: You need to own a website to verify. But if you have one, this is the closest thing to a paid tool without paying.
The Free Keyword Stack: How to Combine the Tools
Here’s the exact process I use for every new article. It takes about 45 minutes and costs $0.
- Start with Keyword Sheeter → Generate 200+ long-tail ideas for your topic
- Filter for relevance → Delete anything that’s off-topic or too broad
- Check volume with Keyword Surfer → Paste the remaining 30–50 terms into Google Search, look at the overlay numbers
- Validate with Google Keyword Planner → Download the exact-match CSV for your shortlist to confirm volume ranges
- Find content gaps with Ahrefs free tools → If you have a site, run the Content Gap report against your top 3 competitors
- Check trends → Use Google Trends to see if the topic is growing or dying
This stack gives you 90% of what a paid tool offers—minus the pretty dashboards.
3 Underrated Strategies for Free Keyword Research
A. Mine “People Also Ask” Boxes
Those PAA boxes on Google are keyword goldmines. But don’t just scrape the first level. Click each question, and Google generates follow-up questions. Keep clicking until you hit 4–5 levels deep. You’ll find questions nobody else is targeting.
B. Steal from Reddit and Quora
Go to Reddit’s search bar, type “best [your niche]”, and sort by “Top” for the last year. The thread titles are actual user questions. Then take those exact phrases and put them into Ubersuggest. The search volume might be low, but the intent is hyper-specific—perfect for affiliate posts.
C. Use YouTube Autocomplete
People search differently on YouTube than Google. They use conversational phrases like “how to fix a leaking faucet without a wrench.” Type your seed keyword into YouTube and note the autocomplete dropdown. Those phrases often have low competition on Google because most SEOs ignore video platforms.
What to Avoid When Using Free Tools
- Don’t obsess over exact search volume. All free tools estimate. A keyword with “50 searches” might actually have 200. Focus on intent and relevance.
- Don’t ignore zero-volume keywords. If a keyword has “0” volume but matches a real problem (check Reddit), it might still drive conversions. Some of my best-performing posts started with zero-volume terms.
- Don’t copy the top-ranking page’s keyword list. That’s what everyone else does. Instead, use the free tools to find related terms the top page missed—then out-depth them.
Final Thought (Not a Summary)
Free keyword research tools in 2024 are more powerful than most people realize. The problem isn’t the tool—it’s the strategy. You can have Ahrefs and still write about topics nobody searches for.
Start with the stack above. Pick one underserved long-tail keyword. Write a genuinely useful 2,000-word guide. Then check back in 30 days with Google Search Console.
The data will tell you what to do next. And you didn’t spend a dollar to get it.
Your move: Which tool are you going to try first?
