LittlePoster.ai
Mastodon

A Mastodon scheduler that works on every instance.

mastodon.social, hachyderm.io, your self-hosted instance — same scheduler, same analytics. Per-instance OAuth bootstrap, content warning support, custom visibility.

MastodonScheduled · Wednesday
8–10 AM

Why this matters on Mastodon

Numbers worth scheduling around.

500Characters by default (varies by instance)
ChronologicalStrict reverse-chronological feed
Per-instanceEach instance has its own OAuth app
8–10 AMEU weekday morning peak

Built for Mastodon

Four things our Mastodon scheduler does right.

Per-instance OAuth bootstrap

Each Mastodon instance has its own OAuth app. We handle the bootstrap on first connect — you just paste your instance URL.

Content warnings as first-class

Set a CW per post or per network variant. The Mastodon community values them; our composer makes them easy to add.

Visibility control

Public, unlisted, followers-only, direct — set per post. Defaults to public for scheduled posts.

Federated-aware timing

Mastodon timelines are chronological across the federated graph. We default to EU weekday mornings (8–10 AM local) when both EU and US East audiences are reachable.

Best time to post

When to ship on Mastodon.

Weekdays
8–10 AM, 5–7 PM
Weekends
9–11 AM
Peak day
Wednesday
Character limit
500 characters default; many instances raise the limit.
See every network

FAQ

Frequently asked

Which Mastodon instance do I connect?
Any. We bootstrap an OAuth app on your instance the first time you connect. Subsequent users from your team can share that app or bootstrap their own.
Why does my instance allow more than 500 characters?
Mastodon instance admins can raise the character limit. We respect whatever the instance's API reports — if your instance allows 1,000, we'll let you write 1,000.
Can I post with content warnings?
Yes — there's a dedicated CW field in the composer. Recommended for anything heavy, NSFW, or off-topic for a follower set.
Does Mastodon have hashtags?
Yes, and they're more meaningful than on Twitter-likes — hashtags are how content gets discovered across the federation.
Can I schedule polls?
Polls aren't supported in scheduled posts yet — Mastodon's API requires the poll to be created with the post, and our scheduler doesn't preserve poll state across the delay. Post manually for polls.
Will federation affect when my post is visible?
Your post is visible immediately on your instance, then propagates to followers' instances over seconds to minutes. Timing relative to your audience's local time is what matters.