Free tool · nothing you paste is uploaded
Hashtag and tag limit checker
Paste a caption and every hashtag and @ tag in it is counted against the figures platforms actually publish, with the Instagram conflict shown rather than resolved and a source link on every line.
- Instagram hashtags (publishing API)cap0 of 3030 left
The cap the content publishing API enforces, stated in the same sentence as the caption ceiling. help.instagram.com
- Instagram tags (help centre)cap0 of 55 left
Instagram's consumer help page gives a different figure and says a comment carrying more will not post. Both are official; the checker shows both. help.instagram.com
- Instagram @ tagscap0 of 2020 left
Mentions in the caption, capped in the same API sentence as the caption itself. developers.facebook.com
- YouTube hashtagscap0 of 6060 left
Past this line YouTube ignores every hashtag on the video, not just the extras. support.google.com
- X hashtagsadvice0 of 22 left
Not a cap. X documents no hard limit and recommends this as best practice. help.x.com
No documented line
- TikTok hashtags: No separate cap; hashtags and mentions spend the caption's own budget. developers.tiktok.com
- Facebook hashtags: Facebook documents no hashtag limit. www.facebook.com
- LinkedIn hashtags: No LinkedIn help page states a hashtag cap. www.linkedin.com
- Pinterest hashtags: Pinterest's Pin specs pages state no hashtag cap. help.pinterest.com
- Google Business Profile hashtags: Hashtags are not a documented Business Profile post feature at all. support.google.com
Each figure above is parsed at build time from our sourced reference of platform limits, last checked 6 August 2026. Read the full spec tables.
Drop a caption in the box and the checker pulls out each #hashtag and @ tag it finds, then holds the counts against every figure a platform has put in writing. Lines exist only where a platform drew one: Instagram's publishing API and its help centre, YouTube's hashtag rules, X's stated best practice. The five networks that publish no cap are listed as exactly that, because a checker that invents a line to look thorough is worse than none.
The Instagram row is really two rows, and that is deliberate. Instagram's consumer help centre allows 5 tags on a post and warns that a comment carrying more will not publish, while Instagram's own publishing API reference permits 30 hashtags and 20 @ tags in a caption. Both pages were live on the same day. This tool refuses to average them or quietly pick a winner; you get both lines and the pages they came from.
None of the figures live in this page. Each is parsed at build time out of the sourced spec table this site maintains, from the exact sentence the platform published. When a cell in that table is re-checked and changes, the checker changes in the same commit. And if a platform rewords its page far enough that the parse stops matching, the build fails rather than shipping a stale number.
Nothing you paste leaves this page. The tool makes no network request when you type; finding a hashtag is pattern matching a browser can do on its own, and closing the tab destroys the draft.
What the platforms actually document
- Instagram publishes two different answers
- Which one binds you depends on the door your post goes through. Anything published by a tool that uses Instagram's API, this product included, inherits the API reference's caption rule of 30 hashtags and 20 @ tags. Anything typed into the app answers to the help centre, which says 5 tags and warns that a comment with more will not post. If you want one rule that survives both pages, stay at or under the smaller figure.
- YouTube's rule is a cliff, not a slope
- Most platforms trim or reject the excess. YouTube documents something stranger: go past 60 hashtags on a video or playlist and it will, in its own words, ignore each hashtag on that content. Every tag, not just the extras. And of the ones you do add, YouTube shows up to three it judges most engaging by the title, which are not necessarily the first three you typed.
- X publishes advice, not a ceiling
- X's help page says outright that you may use as many hashtags as you like, and in the same breath recommends no more than 2 per post as best practice. The checker paints that row amber rather than red when you pass it, because nothing will reject the post; you are ignoring the platform's advice, not breaking its rule.
- No line does not mean no cost
- TikTok, Facebook, LinkedIn, Pinterest and Google Business Profile publish no hashtag cap at all, and this page will not invent one. But hashtags are not free on any of them. Instagram's caption ceiling covers the whole caption with hashtags and @ tags included, and TikTok parses both inside the caption field, so a wall of tags comes straight out of the room your sentences have. The character counter linked below measures that side of the budget.
The questions the limits raise
Is the Instagram hashtag limit 5 or 30?
Both, and each number is on an official Instagram page. The consumer help centre says up to 5 tags on a post and warns that a comment with more will not publish. The publishing API reference allows 30 hashtags in a caption. Posts published through scheduling tools go through the API and get the API's figure; posts typed into the app answer to the help centre. If you need one number that is always safe, use the smaller one.
How many people can you tag on Instagram?
In a caption, Instagram's publishing API documents up to 20 @ tags, in the same sentence that sets the caption's character cap. That is the caption figure. No page the spec table behind this tool has checked publishes a count for tags placed on the photo itself, so the checker does not enforce one there.
What happens if you use more than 60 hashtags on YouTube?
YouTube's help page is unusually blunt about it: past that count, we'll ignore each hashtag on that content. Not the extras, all of them, which makes over-tagging on YouTube strictly worse than under-tagging. The same page says that of the hashtags you add to a description, up to three considered most engaging appear by the video title.
Is there a hashtag limit on TikTok, Facebook or LinkedIn?
None of the three documents one, and neither do Pinterest or Google Business Profile; the checker lists all five as undocumented rather than repeating a figure from somebody's roundup. What TikTok does document is that hashtags and mentions are parsed inside the caption field, so they spend the caption's character budget. On the no-cap platforms, that budget is the real constraint.
Does this checker upload my caption?
No. The page makes no network request when you type. Finding the tags is plain pattern matching in your browser, the draft is never sent anywhere, and closing the tab destroys it. That is also why the tool keeps working through any outage: there is nothing behind it to go down.
What does this tool count as a hashtag or a tag?
A hashtag here is a # that starts a word, followed by letters, numbers or underscores; an @ tag is the same shape with @, allowing the periods usernames carry. A symbol glued to the tail of a word counts for nothing, which is why an email address is not a tag. Repeats count every time, since repeats spend budget every time. Where a platform's parser disagrees at some edge, the platform wins; this box is a pre-flight check, not the composer.
Or let every caption arrive already inside the lines
SpeedRun Social writes each caption for the channel it is going to and keeps the tags inside these documented figures before it publishes. The free plan is one campaign every week, every week, which adds up to 12 posts, 4 videos and 4 cross-posts across a month, with 300 credits refilled monthly, a Brand Kit, and no credit card. Media on the free plan carries a watermark.