Paste long text → pick split style → copy each tweet
When to use a thread instead of a long post
Threads still win on the X ranker — here's when it matters most.
Thread Splitter — FAQ
Why not just paste a long post into X — doesn't Premium allow 25,000 chars?+
Premium does allow long posts up to 25,000 characters, but they collapse behind a "Show more" fold after roughly the first 280 visible chars. Engagement drops sharply at the fold — likes, reposts and replies are 3-5x higher on threaded posts than on a long post past the fold. Threads also let each tweet earn its own engagement and surface separately in For You.
How does the sentence-aware split work?+
The splitter breaks text on sentence terminators (. ! ? … 。 ！ ？) and only falls back to word-boundary splitting when a single sentence overflows 280 chars. The result reads naturally — each tweet ends at a clean stopping point, not mid-sentence.
What's the difference between sentence, word, and paragraph mode?+
Sentence (default) gives the most natural breaks for narrative writing. Word mode packs chunks tighter and produces fewer tweets — better for posts where you don't care about clean sentence endings. Paragraph mode keeps short paragraphs intact as single tweets, only splitting paragraphs that exceed 280 chars — useful for posts already structured paragraph-by-paragraph.
Does the character count match X's real counter?+
Yes. X uses a weighted formula where most Latin characters count as 1, but CJK characters (Chinese, Japanese, Korean), full-width punctuation, and most emoji count as 2. Our counter implements the same formula, so a chunk showing 278/280 in our UI will also show 278/280 on X.
How does numbering work?+
Pick short (1/n), long (1/n), or off. We reserve space for the numbering up-front, so a chunk plus its " 1/12" suffix never exceeds 280 chars. If you turn numbering off, each tweet gets the full 280 chars to itself.
How do I actually post the thread on X?+
Click "Copy" on tweet 1, paste it in X, post. Then on that posted tweet, click the + below it to add tweet 2, paste, post — repeat. X's mobile app and web composer both support adding tweets to an existing thread this way. We're working on a one-click thread-builder that opens X with all chunks pre-staged.
Why are emojis cut weirdly sometimes?+
They're not cut — the splitter never breaks inside a codepoint or grapheme. But because emojis count as 2 weighted characters, a tweet with many emojis hits the 280 ceiling faster than one with only Latin text. That's X's rule, not ours.
Is anything sent to your servers?+
No. All splitting happens in your browser — we never see your draft. Close the tab and the text is gone.
Is it free?+
Yes — completely free, no account, no limits. Pair it with the Character Counter for fine-tuning individual tweets and the Tweet Screenshot tool for sharing the final thread visually.