Open and decentralized
Mastodon Post Scheduler
Schedule Mastodon posts and threads with pictures and video.
What you can post to Mastodon
- Text posts
- Posts with pictures or video
- Threads
Mastodon limits
BrokenPost follows these rules and warns you before a post breaks one.
| Characters | 500 characters |
|---|---|
| Media | Pictures or video |
| Threads | Yes, as replies |
- Each part can have up to 500 characters.
- Big videos take Mastodon a while to process, so upload them well before the post time.
How to schedule a Mastodon post
- 1
Connect Mastodon. Sign in with your Mastodon account.
- 2
Write your post. Post the same thing to other apps at once if you want.
- 3
Pick a date and time and click schedule. BrokenPost posts it for you, then shows it on your calendar.
Ways people use BrokenPost for Mastodon
Open-source updates
Share release notes with the dev crowd on Mastodon.
Cross-post
Post the same update to Mastodon, Bluesky and X at once.
Threads
Break a long post into a thread.
Common Mastodon errors and how to fix them
These are the messages BrokenPost shows when Mastodon turns a post down.
| What you see | How to fix it |
|---|---|
| The media was still processing when the post was published, please try again | Big videos need time on Mastodon. Retry the post a few minutes later. |
| Your login is currently disabled | Your Mastodon server disabled the account. Sign in on Mastodon to sort it out, then reconnect. |
Or ask your AI to post to Mastodon
Connect ChatGPT, Claude or another AI agent once. Then ask in plain words:
- “Post our release notes on Mastodon tomorrow at 10am as a short thread.”
- “Share this screenshot on Mastodon this afternoon.”
- “Schedule this post on Mastodon, Bluesky and X for Monday morning.”
What the Mastodon scheduler costs
Every plan includes Mastodon and every other app. Paid plans start with a 7-day free trial.
| Free | Free · 1 brand · 20 posts a month |
|---|---|
| Creator | $19/month or $12/month yearly · 3 brands · unlimited posts |
| Pro | $29/month or $19/month yearly · 10 brands · unlimited posts · +5 brands for $19/month |
| Team | $99/month or $49/month yearly · 25 brands · unlimited posts · +10 brands for $39/month |
Questions people ask
How do I schedule Mastodon posts?
Connect Mastodon in BrokenPost, write your post, pick a date and time, and click schedule. BrokenPost publishes it for you, even when your computer is off.
What is the Mastodon character limit?
BrokenPost lets you write up to 500 characters per post on Mastodon, the same limit Mastodon uses. The editor counts as you type.
Can I add pictures or videos to Mastodon posts?
Pictures or video.
Is there a free Mastodon post scheduler?
Yes. The Free plan includes 1 account on every app and 20 posts a month. Paid plans start at $19 a month with unlimited posts.
Can AI schedule Mastodon posts for me?
Yes. Connect ChatGPT, Claude, Claude Code or another AI agent to BrokenPost and ask in plain words, like "Post our release notes on Mastodon tomorrow at 10am as a short thread."
How do I connect Mastodon?
Sign in with your Mastodon account.
Can I post replies or comments on Mastodon?
Yes. Add more parts under your post and BrokenPost posts them as replies, right after the first one.
Free Mastodon tools
Schedule to more apps
Write once. Post everywhere.
Start free with BrokenPost. Connect your apps and your AI in a few minutes.