Free tool

Tweet Length Checker

Check that your post fits before you hit send.

0 / 280Waiting for input
Quick answer

Paste your draft into the checker above. It measures your post against the 280 character limit for a standard X post, tells you how many characters you have left, and marks the point where the text would be cut. Links always count as 23 characters, so a post with a link has less room than it looks.

How to use the length checker

  1. 1
    Paste the draft
    Drop your post into the box above. The check runs as you type, no button needed.
  2. 2
    Read the remaining count
    The tool shows characters used and characters left against the 280 limit.
  3. 3
    Fix an overflow
    If you are over, cut filler first. If the idea still will not fit, it usually wants to be a thread.

How length is measured on X

  • A standard post allows 280 characters.
  • Every link counts as 23 characters, whatever its real length, because X wraps it in its own shortener.
  • Many emoji and non Latin characters count as two, so they eat space faster than they appear to.
  • Premium subscribers can post longer, but a post that makes its point early still travels further.
The cut line matters most
In a busy feed, people read the first line and decide. Knowing where your post gets clipped tells you whether the hook survives before anyone taps to expand.

Use cases

Last check before posting

Confirm a finished draft fits so you are not surprised by a cut off word.

Deciding post versus thread

When a post keeps running over, that is your signal to break it into a thread.

Adding a link

See how much room a link leaves so the rest of the post still reads clean.

FAQ

A standard post allows 280 characters. Premium subscribers can post longer, but shorter posts still tend to perform better because the point lands sooner.

Related tools and guides

Tweet Character Counter

A free tweet character counter for X. Paste your post to see the character count, the 280 limit, and where it will get cut off.

Thread Splitter

A free thread splitter for X. Paste long text and it breaks it into clean, numbered posts that each fit the 280 character limit.

How to Write Better Hooks for X

A practical guide to writing first lines on X that earn the tap, with real before and after examples and the patterns that keep working.

Grow on X without the guesswork

TweetX writes in your voice, schedules straight to X, and turns your real analytics into a plain do more of this and do less of this.

Start free trialTake the tour