Format long text into numbered Twitter threads with character counting and thread preview display.
The hard part of posting a long thread is not writing it, it is splitting it: every post must fit the 280-character limit for standard accounts. Paste the draft and this page returns it as numbered posts, each with its own character count, plus a preview of the whole thread before you copy them into the X composer. Nothing is posted here, and the draft never leaves your browser. The usual surprise is the arithmetic: the limit applies per post, not per thread, and the count includes every space and punctuation mark, so a draft that reads like one short message often comes back as two or three posts.
A concrete input and expected output from the current implementation.
Input
Launch checklist. First, name the problem in plain words. Second, show the fix in one concrete example. Third, tell people what to do next, in one short sentence.
Expected output
A single post holding the draft text unchanged, with a character count of 162 and a preview showing the one-post thread. No split happens because 162 stays under the 280-character limit.
The count includes spaces and punctuation, and the draft contains 162 of them. Any text under the limit stays a single post; longer drafts are cut into consecutive posts, each with its own count.
Every character of the pasted draft is counted, spaces and punctuation included. Text within the post limit stays one post. Anything longer is cut into consecutive posts, none exceeding the limit, and each post is counted again on its own, so the numbers shown are the numbers each post will be measured against when you paste it into the composer.
Posts are numbered in order, typically 1/3, 2/3, 3/3, and the preview lays the thread out top to bottom so you can read it as readers will. That preview is where formatting problems surface: a split that lands awkwardly, a short orphan post at the end, a count that crept over the limit after an edit.
No. It formats and previews; you copy the posts and publish them in X yourself, posting each as a reply to the previous one so they stay linked in order. The draft is processed entirely in the browser and is never uploaded, and there is no scheduling.
Because the limit is per post, not per thread: standard accounts get 280 characters per post, so 600 characters cannot be one post and the tool splits the draft. If your account has X Premium, which allows up to 25,000 characters per post, check whether the tool lets you raise the limit; a tool fixed at 280 will split more aggressively than the composer would allow.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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