Type a keyword or topic and get relevant hashtags for Instagram, TikTok, and Facebook.
A hashtag is a word or phrase prefixed with the # symbol that turns it into a clickable, searchable label — #travelphotography, #smallbusiness, #mondaymotivation. Platforms index every hashtagged post, so tapping a hashtag shows you a feed of everything published under it. That makes hashtags a discovery engine: people who have never heard of you can find your content by browsing or following tags they care about. They also categorize your post, telling the platform's algorithm what your content is about so it can recommend it to the right audience. Used well, hashtags put your posts in front of strangers who are already interested in your topic — the closest thing social media has to free targeted distribution.
Start with relevance: every tag should describe what is actually in the post, because misleading tags attract the wrong audience and hurt engagement. Then build a mix. Broad tags (millions of posts, like #food) give reach but your post drowns in seconds. Niche tags (thousands to low hundreds of thousands, like #veganmealprep) have smaller audiences but far less competition, so your post stays visible longer. Branded or community tags unique to you help collect your own content in one place. Before committing to a tag, tap it and check: how many posts does it have, is the recent content actually related to yours, and does it look active? Ten thoughtful tags beat thirty random ones every time.
Hashtag strategy is not one-size-fits-all. Instagram allows up to 30 hashtags per post, but 3–5 highly relevant ones in the caption (or first comment) currently perform best — the algorithm has shifted toward semantic understanding over tag volume. TikTok rewards 3–5 tags mixing one broad tag (#fyp is optional, not magic), niche tags, and trending challenge tags when genuinely relevant. X (Twitter) favors 1–2 tags max; more looks spammy in a short post. LinkedIn works well with 3–5 professional tags. Facebook hashtags exist but drive little discovery — one or two is plenty. Always match the tag culture of the platform you are posting to, not the one you copied the tags from.
Do not overstuff: a wall of 30 barely-related tags signals spam to both algorithms and humans. Never use banned or restricted tags — platforms quietly suppress posts carrying them, and the list changes, so spot-check any tag you rely on. Avoid overly generic tags where your post will be buried in under a minute. Do not hijack trending tags unrelated to your content; it annoys the audience you actually want. Keep a saved set of proven tags per content pillar and rotate in fresh ones to test. Finally, remember hashtags are a boost, not a strategy — great content with three good tags outperforms mediocre content with thirty.