Thread Splitter
Split a long post into a numbered thread for X, Threads, Bluesky or Mastodon.
How it works
- 1Paste your long post.
- 2Pick the platform and numbering.
- 3Copy each post into the app.
Features
- Splits at sentences, then words, never mid-word unless a word is too long.
- Links counted as 23 characters, like X.
- Blank lines start a new post.
- Private: runs in your browser; nothing is uploaded.
Frequently asked questions
Does it post for me?
No. Copy each post and reply to the previous one.
Why is a post shorter than the limit?
The next sentence didn't fit, so it starts the next post.
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