# Twitter / X Thread Splitter Paste a long text and split it into a numbered X thread that respects the 280-character limit. Splits on word/sentence/paragraph boundaries, auto-adds 1/N numbering, weighs CJK and full-width characters correctly, counts URLs as 23 characters, and shows a live X-style preview card for each tweet with a character meter. > Canonical page: https://elysiatools.com/en/tools/twitter-thread-splitter - **Category:** Text Processing - **Keywords:** twitter, x thread, thread, tweet splitter, 280 characters, numbered thread, social media, thread composer, x.com, tweet ## Overview A thread composer for social-media managers and long-form writers: 1. **Paste long text** — a blog excerpt, a long idea, or any prose. 2. **Per-tweet limit** — defaults to 280 (the X limit). The splitter never breaks a word or a URL across tweets. 3. **Numbering** — adds `1/N`, `(1/N)`, `Part 1 of N`, or none. The space the numbering needs is reserved before splitting, so content never overflows once the tag is added. 4. **Split on** — sentence boundaries (preferred), paragraph boundaries, or word-only (hard wrap). 5. **Accurate counting** — X counts CJK / fullwidth characters as 2 and always counts a URL as 23 characters; this tool does the same, so the 280 budget is exact. 6. **Preview cards** — each tweet is rendered as an X-style card with a live character meter and over-limit warnings. All processing runs locally in your browser. ## Inputs - **Long text** (textarea): The text you want to split into an X thread. - **Per-tweet limit** (number): Character budget per tweet. 280 is the standard X limit (CJK and URLs are weighted per X rules). - **Split on** (select) - **Numbering style** (select) - **Separator** (text): Text placed between content and the numbering tag (e.g. — or a newline). - **Preserve line breaks** (checkbox) - **Reserve space for URLs** (checkbox): When on, URLs count as 23 characters (X behaviour). When off, URLs count by their raw length. ## When to use - When you want to publish a long blog post, article, or essay as a multi-part thread on X without manual cutting. - When your text contains URLs or CJK characters and you need exact character counting that matches X's official API rules. - When you need to preview how your thread will look on X with automatic numbering like '1/N' or 'Part 1 of N' before posting. ## How it works - Paste your long text into the input area and set your character limit per tweet. - Choose your preferred splitting mode (sentence, paragraph, or word-only) and select a numbering style. - The tool reserves space for the numbering tags, counts URLs as 23 characters, and splits the text along natural boundaries. - Review the generated thread in the live X-style preview cards with character meters before copying the text. ## Use cases - Converting a detailed technical blog post into a readable, bite-sized educational thread. - Formatting promotional announcements containing links and hashtags to ensure they fit the 280-character limit. - Splitting bilingual or CJK-heavy commentary while maintaining accurate character counts. ## Frequently asked questions ### How does the tool count URLs? Following X's official rules, any URL is counted as exactly 23 characters, regardless of its actual length. ### How are Chinese, Japanese, and Korean (CJK) characters counted? CJK and full-width characters are counted as 2 characters each, matching X's character weighting system. ### Will my words or URLs be cut in half? No, the splitter respects word, sentence, or paragraph boundaries depending on your settings and will not split a single word or URL across tweets. ### Does this tool post directly to my Twitter/X account? No, this tool runs entirely in your browser to split and preview your text. You can copy the split tweets to post them manually. ### What numbering styles are supported? You can choose between 'n/N' (e.g., 1/4), '(n/N)' (e.g., (1/4)), 'Part n of N', or no numbering at all. ## Related tools - [Words to Number](https://elysiatools.com/en/tools/words-to-number): Convert English number-words into digits. 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In oliguric AKI, FENa <1% suggests prerenal azotemia (sodium-avid state: volume depletion, heart failure, hepatorenal syndrome), while FENa ≥1% suggests intrinsic injury (typically ATN). FENa >4% is sometimes cited as supportive of post-obstructive pathology. Caveats: unreliable on diuretics (use FEUrea <35%), contrast/sepsis ATN can present with low FENa, chronic CKD and glucosuria elevate FENa independently. Derived from Espinel CH, JAMA 1976. Most useful in oliguric AKI; interpret with full clinical context. 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