Free Character Counter

What is a character counter?

A character counter tells you how long a piece of text is in the units a platform actually enforces. That sounds trivial until you notice how much disagreement there is: X counts characters but treats a link as a fixed length regardless of the real URL, Bluesky counts graphemes rather than characters so one emoji is one unit even though it may be several code points, and Instagram enforces 2,200 characters but truncates the visible caption at roughly 125. This tool counts as you type and runs entirely in your browser, so nothing you paste is transmitted.

How to use the character counter

Most people use it in one of two directions: writing to a limit, or checking a draft against one.

• Paste your draft into the box. Counts update live, so you can watch the number fall as you cut.
• Decide which number you care about. Characters govern whether a post is accepted; words govern whether a brief has been met.
• Check the truncation point as well as the cap. Fitting inside 2,200 characters on Instagram means nothing if your hook sits at character 400.
• Watch what emoji do to the count on platforms that measure differently, since a few emoji can cost more than you expect.
• Copy the finished text out once it fits.

Character limits worth memorising

These are the numbers that decide whether a post publishes, gets cut off, or wastes the space it had.

• X allows 280 characters on a free account, and considerably more on a paid one. Threading is usually better than paying for length.
• Instagram allows 2,200 characters in a caption but shows roughly 125 in feed, so the first sentence carries the post.
• LinkedIn allows 3,000 characters and folds after roughly 210, which is why LinkedIn posts open with a hook and a line break.
• Bluesky allows 300 graphemes, not characters. Emoji and non Latin scripts behave differently here than they do elsewhere.
• Threads and Mastodon both sit around 500, though Mastodon instances can raise their own limit.
• Pinterest allows 500 characters in a description, and treats that text as search input rather than decoration.

Who uses this tool

Counting characters is a small job that a few groups do dozens of times a day.

• Social media managers writing one message for several platforms, where the same copy has to survive four different caps.
• Copywriters working to a brief that specifies a word count rather than a character count.
• Ads teams filling fixed fields, where a headline that runs two characters over is simply rejected.
• Anyone writing meta titles and descriptions, where going long means Google truncates you in the results page.
• Students and researchers working to an abstract or an application limit, which is the one use here that has nothing to do with social media.

Platform limits at a glance

The caps the counter measures against, and the point at which each platform visually cuts you off.

Checked in September 2026. Platforms adjust these from time to time, and Mastodon limits are set per instance, so treat the numbers as current rather than permanent.

When this is not the right tool

A counter tells you whether text fits, not whether it is any good. A caption trimmed to exactly 280 characters can still be a bad caption. It also cannot tell you how a post will actually look once a platform applies its own line spacing and link previews, which is what the post preview tools are for. And if your text is too long because it says too much rather than because it is inefficiently worded, cutting characters will not fix it: rewrite the thought instead, or split it into a thread.