Post on X.
We copy it everywhere else.
MicroPoster is a social media automation platform for text: write once on X, Bluesky, Threads or Mastodon, and the same post lands on the rest — reformatted for each network, split into native threads, scheduled ahead and reposted on your cadence.
What it does
Four automations, one account
A social media automation platform publishes and repeats your posts across networks on rules you set once, instead of you opening four apps and pasting the same thing four times. MicroPoster runs four of them, and they work together or on their own.
Cross-posting
Post on one network and the same post appears on the others, rewritten to fit each one — links, mentions, media and length handled per platform.
How cross-posting worksScheduling
Build a queue once and publish on your own calendar, including into X Communities. Drafts can also publish at random times so a feed never looks automated.
See schedulingAuto-reposting
Your best original posts get reposted natively on a cadence you set — never replies, never the same post twice — so other timezones see them.
See auto-repostAutoplug
When a post takes off, an automatic reply promotes your newsletter, product or launch while attention is still on it.
See autoplugThe platforms
Four networks, automated end to end
MicroPoster automates the text-first platforms: X (Twitter), Bluesky, Threads and Mastodon. Any one of them can be the network you write on; the rest receive the copy.
X (Twitter)
280 characters, 25,000 on Premium
Source or destination. Long posts split into native threads, links counted at 23, scheduling into Communities.
See what is automatedBluesky
300 graphemes
Connected over OAuth, so no app password ever leaves your hands. Long text becomes a native reply chain.
See what is automatedThreads
500 characters
Published through Meta's official Threads API — no browser bot, no logging in as you.
See what is automatedMastodon
500 characters, or whatever your server allows
Any server. Links count as 23 and remote mentions drop the domain, exactly as your instance counts them.
See what is automatedWriting for a network MicroPoster does not publish to? The free character counter still measures your draft against LinkedIn, Instagram, Facebook and TikTok limits.
Choosing one
What to look for in an automation platform
Automation platforms fail in the same few ways. These are the things worth checking before you connect an account to any of them, including this one.
Official APIs, not a browser bot
Automation that logs into your account with your password is the fastest way to lose it. Every post MicroPoster publishes goes through the network's own API, authorised by OAuth you can revoke at any time.
Reformatting, not mirroring
A 280-character post is not a 300-grapheme post. A platform worth paying for measures your text the way each network measures it and splits, rewrites or trims accordingly.
Native threads on the other side
Long posts should arrive as a real reply chain on Bluesky, Threads and Mastodon — not as a truncated stub with a link back to the original.
A way to keep a post at home
Not everything belongs everywhere. Add #nocrosspost or #keephere to a post — or to any reply in its thread — and it stays where you wrote it, without spending quota.
One dashboard, all four networks
Connect several accounts per network, see what went where, and retry or edit anything by hand when you want to take the wheel back.
Honest limits
Know how often your accounts are checked and how many posts a plan covers before you buy. Quotas are shown in the dashboard, not buried in a footnote.
Setup
Running in about a minute
Connect your accounts
Link X, Bluesky, Threads and Mastodon over OAuth. No passwords are stored, and access can be revoked from either side.
Pick the source and the destinations
Choose which network you write on and which ones should receive a copy. Add hashtags per destination if you want them.
Write where you already write
Keep posting as normal. MicroPoster watches the source account, reformats each new post and publishes it everywhere else — then reposts and plugs it on the schedule you set.
What MicroPoster deliberately does not do
It publishes to four text networks and nothing else. If your work lives on video and photos, this is the wrong tool, and it is better to know that now.
- No publishing to Instagram, TikTok, Facebook, LinkedIn, YouTube or Pinterest.
- No inbox, no team approval queues, no client billing — one writer, four accounts each.
- No engagement bots: nothing follows, likes or replies to strangers on your behalf.
- No password logins. If a network has no API for something, MicroPoster does not fake it in a browser.
Questions about automation platforms
What is a social media automation platform?
It is software that publishes and repeats your posts across social networks on rules you set once, instead of you opening each app. MicroPoster does four things: copies a post from one network to the others, publishes a scheduled queue, reposts your best content on a cadence, and replies with a plug when a post performs.
Which platforms does MicroPoster automate?
X (Twitter), Bluesky, Threads and Mastodon. Any of the four can be the source you write on, and any of the others can receive the copy. Instagram, Facebook, TikTok and LinkedIn are not supported for publishing.
Is automated posting against the rules?
Not when it goes through the official APIs, which is what MicroPoster uses on all four networks. What breaks the rules is bulk spam, engagement farming and tools that sign into your account with your password. Publishing your own writing to your own accounts through an authorised app is exactly what those APIs are for.
Do I have to give up control of what gets posted?
No. Add #nocrosspost or #keephere to any post — or to any reply in its thread — and it is skipped without counting against your quota. You can also switch automation off entirely and push posts by hand from the dashboard.
How is this different from a general-purpose scheduler?
Most schedulers ask you to write a separate post for every network. MicroPoster starts from a post you already published and adapts it: measuring it the way each network counts, splitting it into native threads, re-uploading media and rewriting mentions that only exist on the source platform.
How often are new posts picked up?
Your source accounts are checked regularly through the day, and higher plans are checked more often. Scheduled posts publish at the time you set.
Is there a free trial?
Yes — 7 days, every automation included, no credit card required.
Write once. Land everywhere.
Connect X, Bluesky, Threads and Mastodon, set the rules once, and go back to writing.
Start your free trial7 days free • No credit card required • Cancel anytime