FREE · MARKETING & SOCIAL MEDIA
Thread Splitter.
Split long text into numbered posts for X, Threads, Bluesky or Mastodon at sentence breaks, ready to copy one by one.
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How to use Thread Splitter
Paste your text, choose the platform or a custom limit and the numbering style. Copy each post in order.
How it works
Text is split at paragraph breaks, then sentence ends, then between words. Room for the numbering is reserved, and X’s weighted counting is used for X.
Example
A three-paragraph text splits into 3 posts of up to 280 characters, numbered 1/3 to 3/3.
Questions about Thread Splitter
Is Thread Splitter free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Up to 50,000 characters. Nothing is posted. Everything is calculated in your browser; nothing you type is uploaded. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.