1vidIQ Keyword Inspector — Most Complete Research Suite

I rank vidIQ first for keyword research because it combines three things most creators need: search demand metrics, competition analysis, and related keyword discovery—all integrated into your YouTube workflow.

Key Features

• Keyword Inspector — Type any keyword and see real YouTube search demand
• Competition Score — How hard is it to rank for this keyword?
• Related Keywords — Suggestions based on your target keyword
• Questions Feature — What questions are people asking about your topic?
• Chrome Extension Integration — Search keywords directly from YouTube Studio
• Autocomplete Suggestions — See what YouTube autocomplete shows
• Historical Trend Data — Is this keyword growing or shrinking?

Pricing

Free: Limited searches. Boost: £1 first month, then £5.98/month. Pro: £9.98/month.

Best For

Every YouTube creator. The Boost plan at £1 is genuinely unbeatable for keyword research value.

Pros

• Most detailed keyword metrics on the market
• Chrome extension works directly in YouTube Studio
• Exceptional value at Boost pricing
• Questions feature is game-changing for content ideas
• Real-time data updates

Cons

• Might feel overwhelming if you’re completely new to keyword research
• Free plan has limited searches

2TubeBuddy Keyword Explorer — Best for Tags and Titles

TubeBuddy’s keyword research is exceptional, particularly for tag research. If you want a tool that handles both keyword and tag optimisation seamlessly, this is it.

Key Features

• Keyword Explorer with competition metrics
• Tag research and suggestions
• Title Generator based on keywords
• Long-tail keyword suggestions
• YouTube Studio integration

Pricing

Free: Basic features. Pro: £4/month. Star: £7/month.

Best For

Creators who want keyword research combined with strong tag and title tools.

Pros

• Best tag research on the market
• Title Generator actually saves time
• Affordable Pro plan
• Integrates with YouTube Studio workflow

Cons

• Keyword data less detailed than vidIQ
• Questions feature not as strong
• Free plan is quite limited

3Keyword Tool.io — Best Dedicated Keyword Research

If you want a tool that does one thing exceptionally well, Keyword Tool.io is it. It’s laser-focused on keyword research with no distractions.

Key Features

• YouTube-specific search volume estimates
• Competition analysis for each keyword
• Long-tail keyword expansion
• API access (paid plans)
• Bulk keyword analysis

Pricing

Free: 50 suggestions per search. Pro: £66/month or £540/year.

Best For

Serious researchers and creators who want powerful, dedicated keyword tools without paying for SEO suites.

Pros

• Purpose-built for keyword research
• Very accurate data
• Fast and reliable
• API access for automation

Cons

• More expensive than vidIQ or TubeBuddy for the same tool
• Doesn’t include other SEO features
• Limited free plan

4YouTube Search Suggest — The Free, Manual Method

This is the simplest keyword research method: type into YouTube search and watch what autocompletes. It’s free, and it reflects real search behaviour.

How It Works

Go to YouTube search, type your topic, and watch the dropdown suggestions. Each suggestion is a real keyword people are searching for. Write them down, and you have your keyword list.

Pros

• Completely free
• Real search data from YouTube
• No learning curve
• Shows exactly what YouTube’s algorithm thinks is relevant

Cons

• No search volume data
• No competition metrics
• Very time-consuming for large lists
• Doesn’t tell you if a keyword is declining in popularity

Best For

Brand new creators testing keyword research before investing in tools, or as a supplement to paid tools.

5Google Trends with YouTube Filter — Free Trend Analysis

Google Trends shows whether a keyword is growing, shrinking, or seasonal. It’s free, and the YouTube filter is particularly useful.

Key Features

• Interest over time graphs
• YouTube-specific filter
• Related queries
• Geographic data

Pricing

Free.

Pros

• Completely free
• Shows trends (growing keywords vs. declining)
• YouTube filter is accurate
• Great for seasonal content planning

Cons

• Doesn’t show absolute search volume
• No competition metrics
• Data is more general than YouTube-specific tools

Best For

Understanding whether a keyword is trending up or down. Use this to supplement vidIQ or TubeBuddy.

6Ahrefs Keywords Explorer — Best for Enterprise Competitors

Ahrefs is expensive, but it has exceptional data on what keywords your competitors rank for. Worth it if you’re competing at high volume.

Key Features

• YouTube search volume and difficulty
• Keywords your competitors rank for
• Content gap analysis
• Ranking difficulty scores
• Integrated with broader SEO tools

Pricing

Lite: £79/month. Standard: £199/month. Advanced: £399/month.

Pros

• Best competitor keyword analysis
• Integrates with broader SEO
• Highest data accuracy

Cons

• Very expensive
• Overkill for small channels
• Learning curve

Best For

Agencies, large channels, and creators competing in highly saturated niches.

7Rapidtags — Quick Tag Suggestions

Rapidtags is simple and fast—type a keyword and get tag suggestions instantly. It’s more of a tag generator than full keyword research, but it’s genuinely useful and free.

Key Features

• Instant tag suggestions from a keyword
• Tag frequency data
• Quick CSV export

Pricing

Free.

Pros

• Completely free
• Very fast
• Good for tag expansion

Cons

• Not a replacement for keyword research
• Limited to tags, not full keyword strategy
• No competition data

Best For

Quick tag generation once you’ve already researched your main keyword.

My recommendation for most creators: Start with vidIQ Boost (£1/month). It’s the best value for complete keyword research, and you can upgrade later if needed.

Q: Which keyword research tool should I use for YouTube?vidIQ is most comprehensive, but TubeBuddy is excellent and slightly cheaper if you also need tag research. Start with whichever’s free plan appeals to you more.

Q: What is the best free YouTube keyword research tool?vidIQ’s Free plan is genuinely valuable. YouTube Search Suggest and Google Trends are also free and useful. Combined, they give you solid keyword research without paying.

Q: How do I know if a YouTube keyword will rank?Look for keywords with moderate search demand and reasonable competition. Tools show a “competition” score—aim for the middle range (not too easy, not too hard). Also consider: how many top results have low subscriber counts? That signals opportunity.

Q: Can I do YouTube keyword research without a tool?Yes, using YouTube Search Suggest and manual analysis. You’ll just miss search volume data and competition metrics. Tools save hours and improve accuracy—worth the investment.

Q: Is TubeBuddy or vidIQ better for keyword research?vidIQ has more comprehensive keyword metrics. TubeBuddy is stronger at tag research. Both are excellent. Try the free plans and see which interface you prefer.