Twitter Thread Maker
Paste in a long piece of writing and this thread maker breaks it into numbered, properly sized posts for X, each one ready to copy and paste in order.
About
About X/Twitter Thread Splitter
X still caps a single post at 280 characters for most accounts, which means any longer piece of writing, a story, an explanation, a set of tips, has to be broken up manually into a thread. This thread maker does that splitting for you, breaking your text into clean, numbered sections sized to fit the limit instead of you counting characters by hand.
Splitting a long post by hand usually means counting characters, cutting a sentence awkwardly in half, or losing track of which numbered part comes next while you're copying each one over. It's a small task that still eats real time when you're trying to post something while an idea is fresh, or right after a launch when every minute matters.
A good thread needs more than just a character cutoff too, breaking mid-sentence looks sloppy and makes the thread harder to follow. This tool tries to break at natural points like the end of a sentence where it can, so each post in the thread reads as a complete thought rather than trailing off.
Paste your full text in, and the tool splits it into individual posts, each one numbered so your readers (and you) can keep track of where they are in the thread. Every section comes with its own copy button, so you can paste them into X one at a time without second-guessing the order.
This works for more than just X. The same split, numbered text works fine for a LinkedIn post broken into comments, a long caption split across an Instagram carousel, or any other platform with its own character limit. Use it any time you've written something longer than one post can hold and don't want to do the math yourself.
FAQ
Frequently asked questions
How many characters can one X post actually hold?
Standard accounts get 280 characters per post. Accounts with X Premium can post significantly longer single posts, but splitting into a thread is still common even for those accounts, since a numbered thread is often easier for people to read and engage with one point at a time.
Does this tool post directly to X for me?
No, it only splits your text into numbered sections. You copy each part and paste it into X yourself, which also gives you a chance to review each post before it goes out rather than auto-publishing something you haven't double-checked.
Will it cut off in the middle of a sentence?
It tries not to. The tool looks for natural breaking points like the end of a sentence or a paragraph rather than just chopping text at exactly 280 characters, so each post in the thread should read as a complete thought wherever your original writing allows for that.
Can I use this for platforms other than X?
Yes. The same numbered, character-limited output works for splitting a long LinkedIn post into comments, breaking up an Instagram caption, or any other place where you're working within a character limit and want clean, numbered sections.
Does the tool add the thread numbering automatically?
Yes, each section is numbered (1/, 2/, 3/ and so on) by default, which is the common convention for X threads and helps readers follow along, especially if they land on a post in the middle of the thread rather than the first one.
Is there a limit to how much text I can split at once?
No hard limit, you can paste in a long article or a full set of notes and it'll break the whole thing into as many numbered posts as needed. Everything runs in your browser, so there's no file size cap or server timeout to worry about either. Developer, Generators and Life Tools: Content Batch (10 tools) How to use this Tools in this file: JSON Formatter & Validator, Robots.txt Generator, Markdown Editor & Previewer, Cron Expression Generator, UUID/GUID Generator, Text to Binary Converter, JSON Diff Checker, Placeholder Image Generator, Baby Name Generator and Pet Name Generator. Same format as the SEO & Marketing pack: Page Title, Meta Description, H1 Heading, Short Description, primary and secondary keyword, an About section with a lead paragraph plus 4 supporting paragraphs (2 for the left column, 2 for the right) and 6 FAQs. Keywords come from keyword_decisions.csv (main_keyword and secondary_keyword). Every claim was checked against the tool's code in the repo. Copy is written in active voice, with no dashes and no filler phrases. The last section lists what to verify or fix before you publish.
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