What is the character limit on Threads?

A Threads post or reply allows up to 500 characters. The profile bio is capped at 150 characters and the username at 30 characters.

Do emoji count as one character or more on Threads?

Visually, one emoji should occupy one character of your budget. This counter uses grapheme-aware counting so an emoji or accented letter counts as a single character rather than the multiple code units a naive counter would report.

Does Threads count URLs against the limit?

Yes. Unlike some platforms that shorten links to a fixed length, Threads counts the full text of a URL toward the 500-character post limit, so long links eat into your space.

What happens if I exceed the Threads limit?

Threads will not let you publish text over the field's cap. This counter flags the overage in red and tells you exactly how many characters to remove so the post will go through.

Is the bio limit really only 150 characters?

Yes, the Threads bio is limited to 150 characters, the same as Instagram. Keep it tight — front-load the most important words because the bio is read at a glance.

Threads Character Limit Counter

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Stay inside Threads’s character limits

Threads caps each text field at a different length, and the editor only tells you when it is already too late. This counter shows your character count in real time against the correct limit for whatever you are writing — a post, a reply, your bio, or a username — and warns you in colour before you go over.

How it works

Pick the field you are editing and the tool loads its limit: 500 characters for posts and replies, 150 for the bio, and 30 for the username. As you type, it counts the visible characters and subtracts from the limit. The display stays neutral with room to spare, turns amber when you are within the last ten percent, and turns red the moment you exceed the cap, telling you exactly how many characters to cut.

Counting is grapheme-aware: the tool counts with the spread operator so an emoji or a combined accented letter is one character, matching how the limit is actually applied rather than how raw bytes accumulate.

Why accurate counting matters

A simple .length check overcounts emoji and some non-Latin scripts because they span multiple UTF-16 code units. That can make a post look over-limit when it is fine, or vice versa. By counting visible characters, this tool reports the number Threads will enforce.

Tips

Front-load your hook in the first line, since the feed truncates long posts behind a “more” tap. Remember that URLs count in full toward the 500-character budget, so prefer a short link when space is tight. For the bio, treat the 150-character cap as a headline exercise: lead with who you are and what you post about, and drop filler words.