Twitter/X Post Length Checker
Paste or type your post below to check it against the X/Twitter 280 character limit, with a live progress bar and a running count of characters remaining.
How to Use the Post Length Checker
- Type or paste your draft post into the box above.
- Watch the progress bar and character counters update as you type.
- The bar turns amber past 220 characters and red past 260, warning you're close to the 280 limit.
- Trim your text until "Characters Remaining" is zero or higher before you copy it into X.
Why Use This Tool?
Why check post length before posting?
X/Twitter hard-cuts any post over 280 characters for standard accounts, so drafting inside another app and only discovering it's too long once you paste it in wastes time and can force an awkward last-second edit. Checking length ahead of time lets you tighten your wording deliberately, keeping the strongest, most scannable version of your message rather than an abrupt truncation.
Does this tool account for link shortening or @mentions?
Every character you type is counted equally here, including URLs and @mentions. X's own composer applies special rules — for example, wrapping links through its t.co shortener to a fixed length regardless of the original URL's size. This tool is a fast, general-purpose estimate; always confirm the exact count inside the X app itself before publishing anything link-heavy.
What if I have a premium subscription with a higher limit?
Subscribers on certain X Premium tiers can post considerably longer content, but the standard 280 character limit remains the benchmark most creators and brands plan around for maximum reach and readability, since longer posts often get truncated in timelines and require a "Show more" tap.
Is my post text stored or uploaded anywhere?
No. This checker runs entirely in your browser using JavaScript — nothing you type is ever sent to a server, logged or stored, and no signup is required. This site is not affiliated with, endorsed by, or sponsored by X Corp.