Twitter/X Thread Splitter
Split long text into Twitter/X threads automatically. Stay within the 280-character limit with smart sentence-aware splitting.
Split long text into Twitter/X threads automatically. Stay within the 280-character limit with smart sentence-aware splitting.
Twitter limits individual posts to 280 characters. Longer thoughts must be split into a thread — multiple tweets posted in sequence, each under the limit. Manual splitting is tedious and produces awkward break points; an automated splitter respects sentence and paragraph boundaries to produce threads that read naturally.
This splitter takes long-form text and breaks it into 280-character chunks at logical boundaries. Sentences are kept whole when possible; paragraphs are preserved as separate tweets when they fit. Optional numbering (1/n, 2/n) makes the thread structure obvious to readers.
All processing happens in your browser. The split text is yours to copy and paste into Twitter; the tool does not post on your behalf. This keeps the workflow simple and avoids API authentication.
Threads on Twitter consistently outperform single tweets for substantial content. Longer thoughts that would not fit a single tweet reach more readers when threaded; the platform's algorithm rewards engagement, and threads invite reading and replies.
Splitting manually produces clunky breaks: sentences cut mid-thought, paragraphs split arbitrarily, character counts miscounted. A splitter that understands text structure produces readable threads in seconds rather than minutes.
Paste long text, get the tweets.
Twitter counts characters as code points (Unicode scalar values), with a special rule for emoji that counts certain compound emoji as 2 characters. The splitter uses the same counting to ensure each tweet fits the 280 limit.
Splitting algorithm: segment text at paragraph boundaries (blank lines), then within paragraphs at sentence boundaries (terminal punctuation), then within sentences at word boundaries if a single sentence exceeds 280 characters. Numbering when enabled adds 6-7 characters per tweet (e.g., '1/12 ').
URL counting: Twitter shortens URLs to t.co links of fixed length (23 characters), regardless of original URL length. The splitter uses 23-character allowance per URL for accurate counting.