Free hashtag generator
Type any keyword and get 25 to 30 relevant hashtags in a second. Free, unlimited, no login to copy them. Built by Blotato, the tool that publishes your post to 9 platforms at once.
Try a single topic word for the cleanest set. Multi-word topics work too.
From keyword to copied tags in one click
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Enter a keyword
Use the main topic of your post: a product, niche, place, or theme.
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Generate
You get a set of related hashtags pulled from a database, sorted from broad reach to tighter niche.
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Copy what fits
Click any tag to copy it, or grab the whole set. Keep the ones that match your content, skip the rest.
Make a week of content in the next 60 seconds.
Drop in a topic. Blotato writes, designs, and schedules posts across every platform from one workflow.
Start your free week7-day free trial. Cancel anytime.
- Schedule to 9 platforms
- Repurpose one post everywhere
- AI writes your content
Use hashtags the way they actually work now
Hashtags behave differently on each platform. On TikTok and YouTube they still help categorize a video. On Instagram, Meta has said keywords and content quality now drive reach more than tag count, so a few relevant tags beat 30 random ones.
The practical move is to mix one or two broad tags with several specific, lower-competition ones that describe exactly what your post is about. Skip banned or spammy tags, do not repeat the same block on every post, and treat hashtags as a labeling tool, not a growth hack.
Give the agent a tag policy, not a tag block
The most common hashtag mistake in automations is hard-coding: a workflow that appends the same tag block to every post ships the exact pattern the FAQ below warns against. Identical blocks flatten reach over time, and a wall of tags adds nothing that 3 to 5 relevant ones do not. If a model or workflow writes your captions, have it choose the tags from each post's actual topic at generation time, the way you would use this generator per post, not once.
Two platform mechanics are worth encoding while you are in there. On X, hashtags spend the same 280-character budget as the rest of the caption, so a tag set that is harmless on Instagram can push the X version of the post over its limit. And on Instagram and Facebook, the Blotato API's firstComment field publishes text as the first comment right after the post goes live, which is where plenty of accounts park their hashtags to keep the caption clean.
Hashtag generator questions
01 Is this hashtag generator really free?
02 How many hashtags should I actually use?
03 Where do these hashtags come from?
04 Do hashtags still help in 2026?
05 Can I use the same hashtags on every post?
06 Will hashtags get my post seen by more people?
07 What is the 3 hashtag rule (and the 5 rule)?
08 What is the 5 3 1 rule on Instagram?
09 What is the best hashtag generator for Instagram?
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