X / Twitter Thread Splitter
Paste a long post and get a clean, numbered thread — split on word boundaries so nothing gets cut mid-sentence, with room reserved for the counter. Copy one tweet or the whole thread.
A thread is a structure, not a wall of text
The best threads feel deliberate: each tweet lands one idea and earns the tap to the next. When you write long-form first and split second, you get the substance right and let the format follow — which is exactly the opposite of forcing a thought into 280 characters and losing the nuance. The mechanical part, counting characters and breaking cleanly, is busywork that this tool removes so you can spend your attention on the hook in tweet one and the payoff at the end. A strong first tweet does most of the work; if it doesn't make someone want the second, the rest never gets read.
Write for the platform, repurpose everywhere
A single good idea rarely deserves to live on one platform only. The same long-form post that becomes a thread here can be the basis of a LinkedIn post, a newsletter section, or the script for a short video — each trimmed to fit its home. Threads are particularly good at compounding, because a reader who finishes one is primed to follow you for the next. Keep a running document of your best long-form thoughts and you'll never stare at a blank composer again; the thread is just one of several shapes that thinking can take.
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Frequently asked questions
How many characters can one tweet have?
A standard tweet allows 280 characters. X Premium subscribers can post much longer, but for a thread that reads well and reaches the widest audience, splitting at 280 keeps every part visible without a 'Show more' cut. This tool defaults to 280 and lets you lower it if you want room for the counter.
Does the numbering count toward the limit?
Yes. A suffix like '(1/7)' takes up characters, so this tool reserves space for it before splitting, ensuring each tweet still fits once the counter is added. Turn numbering off and you get the full limit per tweet.
Why split on word boundaries?
Cutting mid-word makes a thread hard to read and looks careless. This splitter only breaks between words, so each tweet ends on a complete word — and it keeps your paragraphs intact where they fit, so the thread flows the way you wrote it.