Glossary

Thread: what it means

A thread is a chain of connected posts, each a reply to the one before, used to say more than one post allows. X, Threads, Bluesky and Mastodon support them. A thread splitter cuts long text into parts that each fit the limit and can number them.

Updated 2026-10-23

Each part has its own limit, so a thread is how you get past a short limit without cutting your point.

1Post keeps a thread together as one scheduled post with several parts.

Try it

Start a trial

7-day trial for $1. Connect your accounts and schedule a week of posts in one sitting.

Start a trial
Free in your browser

Free tools

Count characters the way each network does, split threads and preview posts. No account needed.

Open the tools
For builders

API and MCP

Post to every network from your own code or assistant with one key, signed webhooks and idempotent requests.

See the API

Get this week’s posts scheduled

Connect your accounts, write once and let 1Post publish on time while you get on with the rest of your day.