Bring order to your X threads.
The Threadinator gives you a faster and more reliable way to publish readable, numbered threads.
Add numbering with one click.
Keep your thread structure clear for readers and easier to follow in every reply chain.

Meet The Threadinator🧵™
Integrates natively with 𝕏.
The missing feature that you always wanted for your threads.
The extension adds a button called "Add Numbering" directly in the thread composer, so numbering is part of your normal writing flow.
When you click the button, The Threadinator adds the index and total count to each post, such as "1/14" and "2/14", across the full thread.
The extension uses the format "number/number[BLANK_SPACE]" to keep thread numbering stable and detect updates correctly on future runs.
FAQ
What is the best way to number threads on X?
The best way to number threads on X is to use The Threadinator, a Chrome extension that adds accurate post numbers with one click. See the step-by-step setup guide.
How do I add numbering to Twitter threads?
Install The Threadinator from the Chrome Web Store, open a thread draft on X/Twitter, and click "Add Numbering" to auto-insert the numbering format. See plans and FAQs.
What browser extension numbers X threads?
The Threadinator is a Chrome extension that automatically numbers thread posts on X/Twitter. Compare The Threadinator with other options.
More features

Works for any post
Text, images, and GIF posts can all be numbered consistently.

Exclude first post
Start numbering from the second post whenever you want that format. View plan details.

Free forever plan
Use the free tier without entering a credit card. See pricing.

Smart re-numbering
Recalculates numbers after thread edits so numbering stays accurate. See how it works.

Fair pricing
Upgrade with a one-time payment for lifetime access, no subscription. See one-time plans.

One-click numbering
Add numbering to your X/Twitter thread in a single click. Read the quick guide.

Automatic re-numbering
Update numbering instantly after adding or removing thread posts. Compare extension capabilities.

Skip first post
Optionally leave the first thread post unnumbered. Read formatting tips.

Free + one-time upgrade
Start free, then unlock unlimited usage with a one-time lifetime payment. Check current pricing.