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Crosspost Between X and Mastodon Automatically

Post on X. Appear on Mastodon. Automatically.

Stop copying and pasting. MicroPoster acts as your invisible bridge, natively syncing your X posts, images, and long threads directly to your Mastodon audience.

Start 7-Day Free Trial
No credit card required
100% Secure OAuth

See it in action

A smarter way to grow your audience.

We ditched complex workflows. MicroPoster focuses entirely on making the connection between X and any Mastodon instance flawless, native, and completely hands-off.

Smart Auto-Detection

Set up your sync rules once. MicroPoster quietly monitors your X feed in the background. When a new post is detected, it's automatically reformatted and pushed to your Mastodon profile.

Native Threads

Long Twitter posts are automatically preserved or split into 500-character reply-chains on Mastodon, preserving your storytelling.

Flawless Media

Images, videos, and GIFs are seamlessly downloaded from X and natively uploaded to Mastodon in high quality.

Smart Handles

Mentions, spacing, and federated ActivityPub links (@user@server.com) are intelligently adapted to fit Mastodon.

Or Keep Full Control

Not ready for full automation? Use our dashboard to manually select, edit, and push specific tweets whenever you want.

Auto-Sync
Manual Sync

Up and running in 40 seconds.

01

Connect your Instance

Link your X and Mastodon accounts. We connect to any instance seamlessly. We never ask for your passwords.

02

Configure Automation

Choose source and target accounts. Set optional hashtags to append to your federated posts.

03

Tweet as Normal

Keep using X just like you always do. Our smart engine periodically checks your feed and handles the cross-posting silently in the background.

Frequently Asked Questions

Is it safe to connect my accounts?
Yes. We use standard secure OAuth directly with your specific Mastodon instance. You never hand over your main passwords to us, and you can revoke access anytime.
Does it support my custom Mastodon instance?
Yes! Regardless of whether you use mastodon.social, a small community server, or a self-hosted instance, MicroPoster will connect flawlessly.
How are multi-part Twitter threads handled?
Twitter threads are automatically detected and converted into native Mastodon conversations. We respect the lengths of each post, adapting to Mastodon's native 500-character limit per post.
Does it support image and video cross-posting?
Absolutely. All media formats attached to your X posts are automatically processed, resized if necessary, and natively uploaded to Mastodon.
Do you offer a free trial?
Yes! Every new account gets a full 7-day free trial with unrestricted access to all automation features. No credit card is required to sign up.

Ready to double your reach?

Join creators and founders who are effortlessly growing their Mastodon audience without the extra work.

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