How many hashtags can you use? Limits by platform in 2026

Instagram allows 30 hashtags per caption. YouTube shows up to three above a video's title and ignores every hashtag on a video with more than 60. Threads uses only one topic tag per post. TikTok, Facebook and LinkedIn publish no hashtag limit at all — there, the question is how many help, not how many are allowed.

What each platform documents

YouTube: three visible, sixty maximum, all relevant

YouTube's hashtag policy has three parts worth knowing. Of the hashtags in your description, "up to three hashtags that are considered most engaging will appear by your video title". Above 60, "we'll ignore each hashtag on that content" — not the extras, all of them. And hashtags "not directly related to the video" may get the video removed.

You may have read that YouTube ignores everything over 15 hashtags. That was the rule in older versions of the help page; the current page, checked in October 2026, says 60. (We had the old figure in our own caption tool until we re-checked it for this article.)

Instagram: 30 is a hard limit

Meta's Instagram API documentation lists "maximum 2200 characters, 30 hashtags, and 20 @ tags" for a caption. It is a maximum, not a guideline: a scheduling tool should cut the list before sending rather than leave it to Instagram. That makes Instagram the one platform where counting matters before you post.

Threads: one topic tag, the rest is text

Threads works with topic tags rather than a list of hashtags: "Only one topic tag is allowed per post", and if the text contains several, the first valid one is used. A block of ten hashtags copied from Instagram doesn't put the post into ten topics; it puts it into one, and leaves the rest as plain text that takes up the 500-character limit.

TikTok, Facebook and LinkedIn: no number, so choose

None of the three documents a hashtag limit in its publishing API. The useful question is what each tag does. A specific tag (the game, the product, the city) helps people who search for exactly that; a generic one (#fyp, #viral, #video) competes with millions of posts and says nothing about the video. A short list of specific tags is easier to read and doesn't eat into the caption's first lines.

The caps we use when we publish

When Uplonic publishes one post to several networks, it keeps the hashtag block at the end of the text and cuts it to a per-network cap, from the end of the list — so put your most specific tags first. Some caps are the platform's own limit; others are our editorial choice where the platform sets none:

You can see what each network would keep from your own list in the free caption preview tool. The text limits that apply next to the hashtags are in social media character limits.