Social Media Character Limits 2026: Every Platform in One Table

The Instagram caption character limit is 2,200 characters as of late 2026, but every platform sets its own limit, and several cut a caption off visually long before that hard limit is reached. This guide lists the character limit for every network BroadcastPost supports, plus X, Pinterest and Bluesky, and explains what actually happens when a post runs too long.

Instagram caption character limit#

Instagram allows up to 2,200 characters in a caption as of late 2026, which is generous compared with most platforms. In practice, the feed only shows the first few lines before truncating the caption behind a "more" tap, so the character limit and the visible limit are two different things. A few related Instagram limits worth knowing:

• Bio: 150 characters.
• Alt text: 100 characters.
• Hashtags: up to 30 per post, though Instagram itself recommends using only 3 to 5 relevant tags.
• Carousels: up to 20 slides per post.

If you write long captions, put the most important sentence first, since that is what shows before someone taps to expand. Our Instagram hashtags guide covers how to use the 30-hashtag allowance without it looking like clutter, and our guide to hiding hashtags on Instagram covers keeping them out of the visible caption entirely.

Character limits for every social platform in 2026#

Check the app itself for the current limit before you rely on any specific number here, since platforms adjust these details from time to time.

What happens when you go over the character limit#

The result depends on where the limit sits. A hard limit, such as a title field or X's caption limit, simply will not accept more text: the composer blocks you from typing further or refuses to publish until you cut it down. A soft limit, such as Instagram or Facebook's generous caption allowance, lets you write as much as you want, but the platform truncates what shows in the feed and hides the rest behind a "more" or "see more" link. Practically, that means the meaningful limit for a feed post is often much shorter than the technical one, since most people never tap through to read a long caption in full.

A few examples make the difference concrete. Write past 2,200 characters on Instagram and the composer simply will not let you add another letter. Write a long Facebook post and it publishes in full, but only the first couple of lines show before "see more" appears. Try to give a YouTube video a 150-character title and the field stops accepting input at 100. Knowing which kind of limit you are working against, a hard stop or a quiet truncation, changes how much you should worry about trimming a caption down.

Tips for writing within any character limit#

• Lead with the point. Put your main message in the first sentence, since that is what shows before a "more" tap on Instagram, Facebook or LinkedIn.
• Write once, then adapt. Draft your longest version first, for LinkedIn or TikTok, then trim it down for shorter platforms such as Threads rather than writing five separate captions from scratch.
• Count hashtags separately in your head. Decide how many characters you can spend on tags before you write the caption, so they do not crowd out the message.
• Read it at the visible length, not the full length. Copy just the first two or three lines of a long caption and check whether it still makes sense on its own, since that is what most readers actually see.
• Keep a short version ready. For platforms with a tight limit, such as Threads or X, a short, punchy version of your message often performs better than a caption crammed right up to the limit.

Do hashtags count toward the character limit?#

Yes, on every platform in the table above, hashtags are part of the total character count, not a separate allowance. A caption with 20 hashtags at roughly 15 characters each can use up 300 characters before you have written a word of the actual message. If hashtags are eating into your space, moving them to the first comment, where Instagram supports it, keeps the caption itself short while the tags still work for discovery. Our Instagram shadowban guide addresses a related worry: neither hashtag placement nor caption length affects reduced reach, which depends on relevance and how people respond to a post.

Formatting long captions so they still read well#

A caption that uses the full limit on a platform such as LinkedIn or TikTok needs some structure to stay readable. Breaking a long caption into short paragraphs with line breaks between them, covered in our Instagram line breaks guide, makes a difference on every platform, not just Instagram. Short paragraphs, a clear first line and a specific call to action near the end all help a long caption earn a full read instead of a skim.

Why character limits matter for scheduling ahead#

When you write and schedule posts across several networks, it helps to know which platform will cut your caption first. A caption written for LinkedIn's 3,000-character limit will publish just fine there, but the same text posted to Threads needs trimming to fit inside 500 characters. Checking a caption against each platform's limit before you schedule it saves you from a post that gets rejected or cut off awkwardly. Our beginner's guide to scheduling social media posts covers the basics of adapting one message across several networks.

If you manage more than one or two networks, try BroadcastPost free and let the composer show you each platform's character count as you write, rather than checking a table by hand every time.

Key takeaways#

• The Instagram caption character limit is 2,200 characters as of late 2026, though the feed truncates a caption well before that.
• Every platform sets its own limit, from 280 characters on X's free tier to 63,206 on Facebook.
• Hashtags count toward the character limit on every network in this guide, not as a separate allowance.
• A hard limit blocks extra text outright; a soft limit lets you write more but hides it behind a "more" link.
• Check the current limit in the app before publishing, since platforms adjust these numbers from time to time.