Mastodon
Last updated: 2026-01-11
Mastodon
Connect your Mastodon account to schedule and publish posts (toots).
Before You Start
You'll need:
- A Mastodon account on any instance
- Your instance URL (like mastodon.social)
Connecting Mastodon
- Go to Settings > Workspace (or use onboarding)
- Click Connect Mastodon
- Enter your instance URL (e.g., mastodon.social)
- Sign in to your account
- Authorize OmniSocials
- Done!
What You Can Do
Posting
- Text posts (toots)
- Image posts (up to 4 images)
- Video posts
- Schedule everything in advance
Post Specs
Text
- Usually 500 characters (but this varies by instance)
Images
- Up to 4 per post
- JPG, PNG, or GIF
Videos
- Length varies by instance
- MP4 or WebM
Note: Different Mastodon instances have different limits. Check your instance's rules!
Best Practices
- Check your instance's specific limits
- Use content warnings when appropriate
- Use hashtags for discoverability (they're important on Mastodon!)
- Engage with the federated community
- Be mindful of your instance's rules
Troubleshooting
Can't connect?
- Double-check your instance URL is correct
- Make sure your instance allows third-party apps
- Try the full URL including https://
Posts not publishing?
- Verify you're within your instance's limits
- Check your media meets the specs
- Make sure the instance is online
