Any instance, not only the big ones
Mastodon has no central server and RobinReach doesn't pretend otherwise. Connect the domain you actually post from.
Mastodon scheduler
Schedule Mastodon posts on the server you call home
Mastodon is thousands of independent servers. Connect the one your account lives on, then publish posts, images, video and reply threads from the same calendar as everything else.
- No credit card to start
- Cancel anytime
- Server
- Approve
- Write
- Schedule
- Live
An example studio, invented for this page. Photos from Unsplash.
In short
Can you schedule posts on Mastodon?
Yes. RobinReach connects to any server running the standard Mastodon API: you type its domain and approve RobinReach there. Then you schedule posts of up to 500 characters with up to 4 images or one video and up to 10 replies, published at the time you choose.
| Servers | Any Mastodon instance Big public servers, small communities or your own |
|---|---|
| Post length | 500 characters The default limit, the safe number to write to |
| Images | Up to 4 per post JPG, PNG, GIF or WEBP |
| Video | One MP4 or WEBM Up to 40 MB |
| Replies | Up to 10 per post Each can carry its own image |
| Analytics | Followers, boosts, favourites, replies Mastodon's API has no impressions or reach |
No central server, no algorithm, no scheduler. RobinReach brings the scheduler and leaves the rest just as it is.
How it works
From your server to a scheduled post
Four steps, and once the server is connected only the last three repeat.
-
Enter your server
Type the domain your account lives on, whether that is a big public server, a community instance or one you host. RobinReach registers itself there and you approve it on your own server.
-
Write the post and its replies
Add up to 4 images or one video, then up to 10 replies with their own images. The counter checks the 500 character limit as you write.
-
Pick the moment
Choose a day and time on the calendar, in your brand's time zone. RobinReach waits for your server to finish processing media, so nothing fails halfway.
-
See what it did
Followers, boosts, favourites and replies land on the same report card as your other networks.
Features
Everything a Mastodon post needs, built in
RobinReach publishes through the official Mastodon API, so posts land on your server exactly as you wrote them.
500 characters, counted live
The composer checks the default limit as you write, so nothing is rejected at publish time.
Up to 4 images, or a video
RobinReach waits for your server to finish processing each file before it publishes.
Reply threads
Queue up to 10 replies under the post, each with its own image, published in order.
Honest analytics
The numbers Mastodon's API actually gives, and nothing invented.
One draft across the open social web
Send the same idea to Mastodon, Bluesky, Threads and X, each with its own limit and preview.
Let your AI write for Mastodon
Connect Claude or ChatGPT to RobinReach and ask in plain words. It writes in a voice that suits Mastodon and schedules the post.
Why RobinReach
Mastodon has no scheduler for regular accounts
Without one, every post waits for you to be online at the right moment, on the right server, in the right tab.
Mastodon on its own
Post now, or remember later
- Every post goes out the moment you write it.
- Replies are added one by one after the post is already public.
- Your Mastodon account is the one you forget to update.
- It lives apart from the rest of your social calendar.
With RobinReach
Your server, on a schedule
- Posts are written ahead and published when you choose.
- Whole reply threads go out in order, images included.
- Mastodon sits on one calendar with your other networks.
- Boosts and favourites land in the same reports as everything else.
Watch it work
See it in the product
How to create a post once and publish it to every platform with RobinReach.
What customers say
Connecting accounts was fast, the interface is one of the cleanest I've used…
David NelsonReview on AppSumo
Keep exploring
The fediverse and everyone else, side by side
Mastodon, Bluesky and Threads each have a page of their own. Run them all from one composer.
Bluesky scheduler
Bluesky has no scheduler of its own. Queue posts, images, video and reply chains here.
Learn more
Threads scheduler
Queue Threads posts, carousels and the replies under them, days ahead.
Learn moreContent repurposing
New videos and photos on one network turn into posts on the others, by themselves.
Learn more
New
Post to Mastodon with Claude
Prefer to let AI do the posting?
Connect Claude or ChatGPT to RobinReach with one MCP URL and it writes, schedules, and publishes to Mastodon straight from the conversation.
FAQ
Mastodon scheduling questions, answered
How do I connect Mastodon to RobinReach?
Type the domain of your Mastodon server, for example mastodon.social or your own. Your server asks you to approve RobinReach, and the account is connected the moment you do.
Which Mastodon servers are supported?
Any server running the standard Mastodon API. RobinReach registers itself as an application on the server you enter, so small community servers and self hosted ones work exactly like the large public ones.
How many characters can a Mastodon post have?
500 on a default Mastodon install, which is the limit RobinReach checks. Some servers allow more, so 500 is the safe number to write to.
Can I schedule Mastodon posts in advance?
Yes. Mastodon has no scheduler for regular accounts, which is one of the biggest reasons to use RobinReach. Pick any date and time, review the post on the calendar, and it publishes automatically.
Can I post images and video?
Yes. Up to 4 images per post, or one MP4 or WEBM video up to 40 MB. RobinReach waits until your server has processed the file before it publishes, so uploads don't fail halfway.
Can I schedule a thread of replies?
Yes. Write the post and up to 10 replies in one composer, give any of them an image, and RobinReach publishes the whole thread in order at your scheduled time.
Does RobinReach show Mastodon analytics?
Yes, on Bloom, Thrive and Scale: followers, boosts, favourites, replies and engagement rate. Mastodon's API doesn't expose impressions or reach, so no tool can report those honestly.
Can AI write my Mastodon posts?
Yes. The built in AI writer drafts posts in a voice that fits Mastodon, and you can connect Claude or ChatGPT to plan, write and schedule from a normal conversation.
Your server. Your schedule.
Connect your Mastodon account in under a minute and queue the week before it starts.
- No credit card to start
- Cancel anytime
- 13 networks, one calendar