The 5 Best YouTube Hashtag Generators

UtubeKit does the useful version of hashtag generation: enter a topic, choose how many ideas you need, and get a set grouped into high-volume, medium, and niche options. That grouping makes the output easier to review than a single unranked wall of tags, and every suggestion arrives with the # already attached for quick use in a description. The generator is free, does not require an account, and works as a clean handoff from the Title Generator or Description Generator. It does not claim to know search volume for each hashtag or prove a tag will earn views — no honest generator can do that. Instead, it makes the mechanical part fast, leaving you to choose only hashtags that accurately describe the actual video.

OutlierKit is not a hashtag generator, which is why it is more useful than one when the real question is "what should this video be about?" It identifies videos dramatically outperforming their own channel averages, then lets you inspect the topic, title, thumbnail, and timing behind that performance. The practical workflow is to find a proven angle first, create a video that genuinely belongs in that conversation, then use a free generator to phrase a small relevant set of hashtags. That is a stronger workflow than choosing tags first and hoping they make a weak topic discoverable. At $9/month, OutlierKit is an inexpensive research layer; it will not write hashtag strings or upload metadata for you.

Taja AI earns its place when hashtags are one checkbox in a much larger post-production workflow. It analyzes a long-form video and produces YouTube optimization assets, short-form clips, blog and social posts, scheduling output, and generated titles, descriptions, and hashtags. The current Starter plan is $19.99 per month for four long-form optimizations; Professional is $49.99 for ten, and Teams/Agency is $99.99 for unlimited usage, with lower annual equivalents and a seven-day trial. That makes Taja sensible for a creator who wants a video turned into a full publishing package, not for someone who only needs a short hashtag list. The per-video limits on lower plans are its main trade-off against a free, single-purpose generator.

VidIQ is useful here because it gives hashtags a broader keyword-research context. Its Free plan includes 150 AI credits per month, niche trends, data-backed content ideas, and AI Coach access; paid Boost and Max plans add more AI credits and research capacity. That does not make a hashtag list automatically better — YouTube still values the relevance of the video, title, description, and content itself — but it can help creators discover the phrases and topics that belong in their metadata. The limitation is cost and complexity: VidIQ is a channel-growth suite, so choosing it only for hashtag generation is hard to justify when a free tool handles the direct task.

TubeBuddy is the familiar browser-extension choice for creators who prefer optimization tools inside YouTube Studio. Its free plan includes essential SEO tools such as Keyword Explorer and SEO Studio, while paid plans add more advanced channel, video, thumbnail, and audience tools. That in-context workflow is the appeal: research and optimization happen near the upload interface instead of in a separate tab. But hashtags are a small part of the job, and TubeBuddy’s strengths are broader workflow tools, not a reason to use twenty extra hashtags. It is most useful for creators already benefiting from its extension; it is not a better standalone answer than a free dedicated generator.