Tweet Thread Splitter

Turn long writing into a clean Twitter/X thread

Threads are how long-form thinking lives on X. The catch: every post has to fit 280 characters, sentences shouldn't break mid-word, and numbering ("1/", "1/N") needs to fit inside that same budget. The splitter above handles all of it.

How long can a tweet be?

Free X accounts are capped at 280 characters per post. Premium accounts can post up to 4,000 characters and Premium+ up to 25,000. URLs always count as 23 characters regardless of length, and most emoji count as two characters each. The splitter respects all three.

How to write a Twitter thread that gets read

• Open with a one-tweet hook. The first post is the only one that gets impressions; the rest are gated behind it. Make tweet 1 stand alone.
• One idea per tweet. If a sentence runs across two tweets, the second tweet has no hook for new readers.
• Leave whitespace. Empty lines cost characters but dramatically improve scan-ability — readers skim threads.
• End with a CTA. Reply, follow, or link. Threads with a clear last tweet outperform open-ended ones.
• Number sparingly. "1/" is helpful when the thread is long. "1/N" is overkill on a 3-tweet thread.

Sentence boundaries beat hard splits

The splitter prefers to break between sentences. Mid-word splits look amateur and cost engagement. When a single sentence is longer than 280 chars, it falls back to word boundaries (still never mid-word).

Use it with the Schedulin scheduler

After you've split the thread, you can paste each tweet into X by hand — or schedule the whole thread natively in Schedulin with one click. We post threads in order with proper reply chaining, which the X web composer is famously inconsistent about.

Need to count exact character usage across other platforms too? Try our multi-platform character counter for X, Instagram, LinkedIn, TikTok, Threads, and more.