Skip to content

Mastodon Scheduling

Schedule Mastodon posts with Shaflex

Connect any Mastodon instance, schedule posts in advance, and cross-post to X, Threads, Bluesky, and LinkedIn — from one tool.

Get started for free

Why Shaflex for Mastodon

Works with any Mastodon instance

Shaflex includes instance discovery and connects to any Mastodon server. Whether you're on mastodon.social, fosstodon.org, or your own instance, it just works.

Configurable character limits

Different Mastodon instances have different character limits. Shaflex detects your instance's limit automatically and adjusts the editor accordingly.

Rich media support

Attach up to 4 files (images, video, audio) up to 40MB each. Add alt text for accessibility. Shaflex handles Mastodon's media requirements natively.

Cross-post to mainstream platforms

Write your Mastodon toot once and publish it to X/Twitter, Threads, Bluesky, and LinkedIn simultaneously. Bridge the fediverse and mainstream social media.

Mastodon limits and formats

Character limit500 (instance-configurable)
Media filesUp to 4 files
Max file size40 MB per file
Supported mediaImages, video, audio
Alt textSupported
Threaded postsSupported

Also publish to these platforms at the same time

X/TwitterThreadsBlueskyLinkedIn

Write your post once in Shaflex and publish it to Mastodon and X/Twitter, Threads, Bluesky, LinkedIn simultaneously. Character limits and media requirements are adapted automatically for each platform.

How it works

1

Connect your account

Sign up for Shaflex (free) and connect your Mastodon account. It takes under 2 minutes.

2

Create your post

Write your Mastodon post, add media, and optionally select other platforms to cross-post to.

3

Schedule or publish

Pick a date and time to schedule, or publish instantly. Shaflex handles the rest.

Which schedulers support Mastodon?

ToolMastodon
Shaflex
Buffer
Later
Hootsuite
Publer
Metricool
Sprout Social

Frequently asked questions

Can I schedule Mastodon posts for free?
Yes. Shaflex's free plan includes 3 channels and 30 posts per month. Connect your Mastodon account from any instance and start scheduling.
Does Shaflex work with my Mastodon instance?
Yes. Shaflex includes instance discovery and works with any Mastodon server — mastodon.social, fosstodon.org, your own self-hosted instance, or any other.
Can I cross-post from Mastodon to X/Twitter?
Yes. Shaflex lets you publish the same post to Mastodon, X, Threads, Bluesky, and LinkedIn simultaneously. Character limits are adapted per platform.
Does Shaflex respect my instance's character limit?
Yes. Shaflex automatically detects your Mastodon instance's character limit and adjusts the editor accordingly. The default is 500 characters, but your instance may allow more.
Which Mastodon schedulers support any instance?
Most Mastodon schedulers work with any instance via the Mastodon API. Shaflex, Buffer, and Publer all support connecting to any Mastodon server.

Explore more

Cross-Platform Scheduling GuideView PricingShaflex vs Buffer

Start scheduling Mastodon posts for free

Connect your Mastodon account from any instance in under 2 minutes. Free plan includes 3 channels and 30 posts/month.

Get started for free

Start posting to five platforms today

Free plan, no credit card. Set up in under 2 minutes.

Get Started
Shaflex app preview