All Networks
Mastodon

Post On Mastodon with SpeedPost

Post to Mastodon and the fediverse from SpeedPost. Create optimized toots, schedule posts, and manage your presence on the federated social network.

Why Use SpeedPost for ?

Mastodon is the open-source federated social network offering an ethical alternative to centralized platforms. With thousands of specialized instances and a privacy-conscious community, it’s a key channel for creators and organizations sharing these values. SpeedPost lets you post to Mastodon as easily as other networks.

With 500 characters and up to 4 images or 1 video per toot, Mastodon offers a balanced microblogging space. Our AI agent generates messages tailored to Mastodon’s tone—respectful, informative, and community-focused. Connect to any Mastodon instance (mastodon.social, fosstodon.org, etc.) directly from SpeedPost.

Post to Mastodon alongside Bluesky, X, and Threads to cover all microblogging platforms, centralized and decentralized. SpeedPost automatically adapts your content to each platform’s constraints. Join the fediverse with a professional tool.

Constraints & Specs Mastodon

Character Limit 500
Images per post Jusqu'a 4
Videos per post Jusqu'a 1
Log in Server URL required (e.g., mastodon.social)

SpeedPost automatically handles these constraints: you’ll be alerted if your content exceeds limits before posting.

Key Features for Mastodon

Multi-instance

Connect to any Mastodon or ActivityPub-compatible instance to publish freely.

Optimized toots

Our AI generates toots up to 500 characters with a tone suited to the fediverse culture.

Federated cross-posting

Post simultaneously to Mastodon, Bluesky, X, and Threads to reach more communities.

Rich media

Share up to 4 images or 1 video per toot for visually engaging posts.

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on ?

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