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Social Media Character Counter

Write and instantly see if your text fits the limits of X/Twitter, Instagram, LinkedIn, bios, meta title and SMS. Each limit shows how much is left or over.

Why every platform has a different limit

Each social network sets its own character budget based on how it displays text, and going over the limit usually means your post is truncated or rejected outright. This tool shows your text measured against all the major limits at once, so you can write a single caption and instantly see where it fits and where it spills over. The count includes spaces, because every major platform counts spaces as characters.

The character limits that matter in 2026

X (Twitter) caps standard posts at 280 characters, and a Twitter bio at 160. Instagram allows up to 2,200 characters in a caption but only shows the first 125 or so before a "more" link, and an Instagram bio is limited to 150 characters. A LinkedIn post can run to 3,000 characters, while a LinkedIn headline is capped at 220. Facebook technically allows over 63,000 characters in a post, but engagement drops sharply after the first 250 or so, which is what shows before "see more."

For SEO, the two numbers to watch are the title tag, which Google truncates around 60 characters, and the meta description, which gets cut off near 160. Text messages split into multiple segments after 160 characters, which can matter if you are paying per segment. This tool tracks all of these at once and turns each counter red the moment you go over.

How to write to a character limit

When you are over a limit, the fastest cuts come from removing filler words, replacing long phrases with shorter ones, and dropping hashtags you do not strictly need. Front-load the important words so that even if the platform truncates your text in a preview, the part that shows still makes sense and earns the click. For bios, lead with what you do and who you help rather than a slow wind-up.

Bios, headlines and meta tags

Short fields are the hardest to write well because every character competes. A 150-character Instagram bio or a 220-character LinkedIn headline forces you to state your value in one tight line. The same discipline applies to a 60-character page title and a 160-character meta description, where the goal is to be specific and front-loaded rather than clever. Watching the live counter as you trim helps you land exactly on the budget without guessing.

Writing the perfect social media post

The best-performing posts are written to the platform, not pasted across all of them identically. A thread on X needs each post under 280 characters. An Instagram caption can be long, but the hook has to land in the first 125 characters before the "more" cut-off. A LinkedIn post rewards a strong first line because only the opening shows before "see more." Watching every limit at once lets you craft one core message and trim it precisely for each destination, instead of guessing and getting truncated.

Why character limits exist

Each platform sets a limit based on how it displays and stores text and on the experience it wants to encourage. X's 280 characters keep posts skimmable. SMS splits at 160 characters because of the underlying messaging standard, which matters when each segment costs money. Search engines truncate title tags around 60 characters and meta descriptions around 160 because that is what fits in a results listing. Knowing the why helps you write to the limit rather than fighting it.

Bios and headlines: the hardest character budgets

Short fields are deceptively hard. An Instagram bio gives you 150 characters to say who you are and why someone should follow. A LinkedIn headline gives you 220 to summarize your professional value and it follows you across the platform. A Twitter bio gets 160. These tiny budgets force ruthless clarity — lead with the value, cut the filler, and use the live counter to land exactly on the limit. The same discipline produces better SEO titles and meta descriptions, where every character competes for the click.

Frequently asked questions

What is the character limit for a tweet on X?
A standard post on X (Twitter) is limited to 280 characters. The Twitter bio is shorter, at 160 characters. This tool shows both at once and counts spaces, which X includes in the limit.
What is the Instagram caption and bio limit?
An Instagram caption can be up to 2,200 characters, but only about the first 125 show before a "more" link, so front-load your message. The Instagram bio is limited to 150 characters.
What length should a meta description be?
Google truncates meta descriptions around 160 characters, so aim to fit your key message and call to action within that budget. Page titles get cut off near 60 characters. This tool tracks both limits live.
Do these platforms count spaces as characters?
Yes. X, Instagram, LinkedIn, Facebook and SMS all count spaces as characters, so the character total in this tool includes spaces to match what each platform measures.
Why does my text show as over the limit on one platform but not another?
Each platform has a different budget. The same caption can fit Instagram's 2,200-character limit comfortably while being far over a tweet's 280. The tool shows every limit at once so you can adapt one piece of text for each place you post it.
Is my text private?
Yes. Everything is counted in your browser. Nothing you type is uploaded, stored or logged, so drafts of unpublished posts stay entirely on your device.
What is the LinkedIn post and headline character limit?
A LinkedIn post can be up to 3,000 characters, but only the first ~210 show before "see more," so front-load your hook. The LinkedIn headline is limited to 220 characters.
How many characters is an SMS text message?
A single SMS segment is 160 characters. Longer messages are split into multiple segments, which can matter if you are billed per segment or using a messaging service.
Does the counter update as I type?
Yes. Every limit updates live on each keystroke and turns red the moment you exceed it, so you can trim toward the budget without guessing.
Why is the same caption fine on Instagram but too long for Twitter?
Each platform has a very different budget — Instagram allows 2,200 characters, X only 280. The tool shows them all at once so you can adapt one message for each place you post.