Best Free YouTube Keyword Research Tools 2026 (Tested, Ranked)

Every "best free YouTube keyword research tool" list looks the same: seven tools, all claiming proprietary data, most requiring signup, half with hidden limits that hit you mid-search. This list is different — we tested each with the same seed keyword and compared results honestly. Ranking based on setup speed, signup friction, result quality, and what the tool actually does vs what it claims. None of these are perfect; all of them beat paying for VidIQ or TubeBuddy if keyword research is your only need.

How we tested

Each tool got the same seed: "home gym setup." Same seed, same time (April 2026), same starting point. We measured:

• Setup friction: signup requirements, email verification, paywall interruptions.
• Results volume: how many unique queries returned.
• Result grouping: clustered by intent (questions, modifiers), or just a flat list?
• Export: CSV, copy-all, or no export?
• Data honesty: does the tool claim search volume it doesn't have?
• Bonus features: competitor tag extraction, trend data, related searches.

We did not evaluate paid features behind free tiers — this is strictly a free-tools comparison.

The ranking

Rank	Tool	Signup	Volume claim	CSV	Results for "home gym setup"
1	WildandFree YT Keyword Research	No	No (honest)	Unlimited	180+ grouped
2	KeywordTool.io (free tier)	No	No (volume is paid)	Limited	120+ flat
3	Ahrefs YouTube Keyword Tool (free)	No	Yes (estimated)	No	10 visible (capped)
4	VidIQ free tier	Yes	Yes (scored)	Limited	Extension-based, no standalone list
5	TubeBuddy free tier	Yes	Yes (scored)	Limited	Extension-based, no standalone list
6	Google Trends (YouTube filter)	No	Yes (relative)	Limited	Trend data, not discovery
7	Keywords Everywhere (free widget)	No	Yes (paid)	Yes (paid)	Add-on, not standalone

1. WildandFree YT Keyword Research

Wins on signup friction and data honesty. Zero signup. Returns 180+ real YouTube autocomplete queries for "home gym setup" grouped into Base, Questions, Modifiers, and Alphabet buckets. Unlimited CSV export.

The positioning: this tool doesn't fake search volume. YouTube doesn't publish that data, so neither do we. You get real queries with no spurious numbers attached. Most experienced creators prefer that — fake volume leads to bad decisions.

Trade-off: no keyword scoring means you apply your own niche judgment. That's a feature for creators who know their audience and a bug for creators who want a tool to tell them what to make.

(Bias disclosure: this is our tool. We built what we wanted — zero-friction, honest, unlimited export. The ranking reflects those priorities.)

2. KeywordTool.io — good free tier, paywalled volume

KeywordTool.io covers YouTube, Amazon, Bing, Instagram, and Google from the same interface. The free YouTube tool returns 100-200 autocomplete keywords grouped into Questions, Prepositions, Hashtags, and regular keywords.

Limit: no CSV export on free tier. You can copy-paste from the interface, but bulk export is a paid feature. For occasional use, the free tier is usable. For research at scale, CSV is essential.

Volume data is paywalled behind their Pro plan ($89/mo), so the free tier is pure discovery without volume estimates — which is honest but means you're getting roughly the same data as zero-cost alternatives at the cost of their signup funnel pressure.

3. Ahrefs YouTube Keyword Tool (free version)

Ahrefs offers a free YouTube keyword tool that shows 10 results per query with estimated search volume. The volume numbers are Ahrefs' model — directionally useful, not authoritative (YouTube doesn't publish this).

Strength: the volume estimate, even if imprecise, helps rank which of 10 results to prioritize. Weakness: 10 results is not enough for real research. The free tool is a teaser for Ahrefs' paid plans ($99-999/mo).

Good for: quickly checking if a single keyword has meaningful volume. Bad for: discovering the full query landscape around a seed.

Sell Custom Apparel — We Handle Printing & Free Shipping

4. VidIQ free tier

VidIQ's free tier is primarily a Chrome extension that overlays data on YouTube pages. Not a standalone keyword tool in the way others on this list are. You install the extension, search YouTube, and VidIQ shows scores and related keywords inline.

Strength: integrated workflow for creators who live on YouTube. Weakness: no standalone research tool, so no "enter a seed, get 150 queries" experience. Requires a VidIQ account.

Use case: creators who want VidIQ's brand scoring visible while browsing. If you want bulk keyword research in one session, this isn't the right tool.

5. TubeBuddy free tier

Nearly identical shape to VidIQ free. Chrome extension, account required, inline YouTube overlay. Basic keyword suggestions and tag hints. For standalone keyword research, not much to work with in the free tier.

TubeBuddy's differentiation (Bulk Processor, Best Time to Publish, A/B thumbnails) sits behind Pro ($7.20/mo). The free keyword tier is essentially a sample of what paid subscribers get.

Use this if you're already on TubeBuddy Pro and the free tier is how non-paying teammates access the ecosystem.

6. Google Trends (YouTube filter)

Google Trends has a YouTube-filtered mode (select "YouTube Search" as the source). It won't discover new keywords from a seed, but it's the best free tool for:

• Comparing relative interest between two keywords over time.
• Identifying rising vs declining topics.
• Spotting seasonal patterns before a campaign.
• Geographic interest comparison.

Pair it with an autocomplete tool: use autocomplete tools for discovery, then Google Trends on YouTube filter to check which discovered queries are trending vs declining.

7. Keywords Everywhere

Keywords Everywhere is a browser extension that shows keyword data inline on Google and YouTube results. Once free, now requires a paid credit plan for most useful features. Remaining free features are minimal in 2026.

We include it because it still appears in "best free tools" lists despite no longer being meaningfully free. If you see it recommended, treat the list as outdated.

What about paid tools?

If you're serious enough about YouTube that paid tools make sense, the market leaders are VidIQ ($7.50-79/mo) and TubeBuddy ($7.20-21.20/mo), followed by Ahrefs ($99+/mo) for cross-platform SEO including YouTube. For keyword research specifically, free tools give you 80% of what paid provides. The paid 20% is the scoring layer — volume estimates, competition scores, trend alerts.

Our honest view: most creators under 50K subs don't need paid scoring. Channels in competitive niches (news, trend-driven gaming, product reviews) where timing matters are the exception.

Frequently Asked Questions

Which free tool has actual search volume?

None have actual YouTube search volume — YouTube doesn't publish it. Ahrefs and Google Trends provide estimates; the rest either don't claim volume or paywall it.

Do all these tools use the same data source?

For autocomplete, yes — they all tap YouTube's public autocomplete endpoint. For volume estimates, each tool uses its own model.

Is the free tier of VidIQ or TubeBuddy worth it?

For creators already on YouTube daily, the extension is useful as a workflow overlay. For bulk research, a standalone free tool is better.

Best Reddit-recommended tool?

Reddit recommendations cycle — VidIQ and TubeBuddy dominate comments, but free tools get consistent praise for creators who don't want the paid friction.

How often should I re-research keywords?

Monthly for stable niches, weekly for trend-driven ones. Autocomplete data updates in real-time so your research is as fresh as your last run.