Schedule to any Mastodon instance, yours or anyone's
Mastodon.social, Fosstodon, Hachyderm. It doesn't matter which instance you're on. Posthive works with any Mastodon-compatible server.
Native, not glued on.
Every Mastodon feature Posthive supports is implemented against the native Mastodon API — not workarounds, not browser automation.
- Any Mastodon instance
- Text posts up to 500 chars
- Images and video
- First comment on publish
- Alt text on media
- Per-account text override
Schedule Mastodon from one composer.
Fig. 01 — Posthive composer showing Mastodon post preview
Connect once. Schedule forever.
Enter your instance URL
Type your Mastodon instance (e.g. mastodon.social). Posthive registers an OAuth app on your instance automatically.
Authorize in one click
You're redirected to your instance's OAuth page. Approve access, and you're connected.
Compose and schedule
Write your toot, attach media, and schedule it. Posthive publishes to your instance at the exact time you set.
Built for Mastodon from day one.
Any instance, no configuration headaches
Posthive works with any Mastodon-compatible server. Enter your instance URL, approve OAuth, and you're posting. Whether you're on mastodon.social, fosstodon.org, hachyderm.io, or a private instance — it just works.
The only scheduler that also does Bluesky and Nostr
If you're building a presence across the fediverse and the open social web, Posthive is the only tool that handles Mastodon, Bluesky, and Nostr from one composer. Cross-post to all three in a single click.
First comment on Mastodon
Schedule a reply to your own toot that fires immediately after the main post. Use it for content warnings, links, or a thread continuation — exactly the way power users do it manually, but automated.
Frequently asked questions
Which Mastodon instances does Posthive support?+
Any instance running Mastodon 3.0 or later. This includes mastodon.social, fosstodon.org, hachyderm.io, infosec.exchange, and thousands of others. Posthive registers an OAuth app on your instance automatically.
Is my Mastodon account safe?+
Yes. Posthive uses standard OAuth — no password is ever shared. You approve access directly on your instance's login page. You can revoke access anytime from your Mastodon settings.
Can I connect multiple Mastodon accounts from different instances?+
Yes. Each account is connected separately. You can have accounts on mastodon.social, fosstodon.org, and any other instance all active in Posthive at the same time.
What character limit does Posthive use for Mastodon?+
Posthive respects your instance's character limit, which is 500 characters on most instances. The composer shows a live counter so you never go over.
Mastodon is one of thirteen platforms.
Posthive also posts to Bluesky, Threads, Instagram, LinkedIn, Mastodon, YouTube, Facebook Pages, Pinterest, Telegram, Nostr, Discord, and Tumblr — all from the same composer.
Connect all your platforms
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14-day free trial. No credit card required. Connect your Mastodon account in under a minute and schedule your first post today.