Social thread splitter
Turn your own long draft into ordered posts for X, Bluesky or Threads. Keep your words, reserve room for numbering, review each post and copy or download the results.
No thread yet
Your thread appears here
Write or paste your draft and it splits into posts as you go, keeping every word.
Draft
Your words, spaces and line breaks are kept exactly; numbering is added after them. Up to 20,000 UTF-16 units and 100 posts.
Thread
How X standard post counts
Uses official twitter-text rules for NFC, weights and URLs at 23 characters, plus 2-weight emoji sequences recognised by this browser's RGI data. Browsers without that support use the older parser conservatively; the native composer can differ. Premium long posts and automatic reply mentions are outside this mode. Long words can split between visible characters. Links stay whole, so a link too long for one post shows an error. Official source
How to use it
- 1
Write or paste your draft and choose X, Bluesky or Threads. It splits into posts as you go.
- 2
Choose whether posts break between words or at paragraphs, and whether to number them. Every post is checked against the platform's rule.
- 3
Edit any post if you need to, then copy the whole thread or download a TXT file and a JSON backup before you leave.
Before you export
The tool does not rewrite, fetch links or publish posts. It preserves original whitespace, so a post can end with a space or line break. Copy-all text adds visible separators between posts; the JSON backup preserves the individual bodies. After editing, check numbers yourself.
Sources and format guidance
Your inputs stay in this browser. These tools work without an account. The content editor opens separately; your files are not transferred automatically.
Open-source library notices