X post checker: character count and red flags before you post
Paste a draft. You get the length the way X counts it, plus a few checks that are easy to forget: a missing #ad disclosure on an affiliate link, absolute claims like "guaranteed profit", and things you did not mean to paste (an e-mail address, a phone number, an API key).
Everything runs in your browser. Nothing you type is sent or stored.
0 / 280 Latin characters 1, CJK characters 2, emoji 2, any link 23.
What it checks
- Length: X's weighted count (280 for a standard post).
- Ad disclosure: an affiliate or referral link with no #ad, #sponsored, #affiliate or "affiliate link" near the start.
- Overclaims: "guaranteed profit", "risk-free", "make $500 a day" and similar.
- Accidental pastes: e-mail addresses, phone numbers, local folder paths, API tokens and private keys.
- AI-sounding phrases (a gentle warning only): "delve", "game-changer", "unlock the power of"...
A mechanical checklist, not legal advice and not a guarantee that a post is fine.
FAQ
How many characters can a post on X have?
A standard post allows 280 weighted characters. Latin letters, digits and common punctuation count 1 each; Chinese, Japanese and Korean characters count 2; so do most emoji. Longer posts on paid plans are not counted by this tool.
How does X count links?
Any link counts as 23 characters, however long or short it is.
Why does an emoji count as 2?
X weights each emoji as 2 characters, the same as one CJK character. Emoji built from several code points (skin tones, flags, families) still count as one emoji.
What does the disclosure check look for?
If the draft contains an affiliate or referral link (for example Amazon tag=, ?ref=, ?via= or common network domains) but none of #ad, #sponsored, #affiliate, 'affiliate link' or 'paid partnership' appears in the first lines, it is flagged. The U.S. FTC expects disclosures to be clear and hard to miss.
Is my text sent anywhere?
No. Counting and checks run in this page, in your browser. Nothing is sent or saved.
Is this legal advice?
No. It is a mechanical checklist that catches common mistakes. It cannot tell you that a post is compliant.