Content Mill
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Write once. Post to all your accounts.

Content Mill checks each platform’s limits before it sends, then shows you what happened on every one.

Create your account 10-day free trial

How it works

  1. 1

    Connect your accounts

    Sign in to each platform once.

  2. 2

    Write it once

    One text. Every limit checked.

  3. 3

    Publish or schedule

    Now or later. A result for each.

Each platform’s rules, handled for you.

Platforms disagree about length, images and video. Content Mill knows each one’s limits, so a post that would be rejected is caught before it is sent.

  • X280 charactersUp to 4 images. Text-only is fine.
  • LinkedIn3,000 charactersUp to 9 images, or one video.
  • Instagram2,200-character captionNeeds an image or video. Never text-only.
  • FacebookPages onlyPosts to Pages, not personal profiles. Text-only is fine.
  • Threads500 charactersImages or video are optional.
  • Bluesky300 charactersUp to 4 images, or one video.

A post sent to several platforms is checked against the strictest of them, so one text works everywhere.

Or just ask your AI assistant.

Claude, ChatGPT, Cursor, Claude Code and Codex.

Connect yours

  • Write a week of posts about our launch.

    Saved five drafts, Monday to Friday.

    Make Thursday shorter.

    Done. Thursday is updated.

  • Post the launch note to X and LinkedIn tomorrow at 9.

    Here’s the preview. Want me to publish it?

    Yes, go ahead.

    Scheduled for tomorrow, 9:00 AM.

  • Did anything fail?

    One did: Instagram.

    Why?

    It needs an image or video.

  • How many credits do I have left?

    You have 1,840 credits left.

    Enough for this week’s five posts?

    Yes. Five posts on three platforms is 150.

Preview firstOnly that exact preview goes outEvery call recorded

Your assistant is told to ask for your yes in the chat. Content Mill enforces the preview and keeps the record.

Pay for what you post.

A post costs 10 credits for each platform it goes to, and a platform that fails is refunded automatically. Drafts and previews are free. On X, a post with a link costs 95. Step up a plan and every post costs less.

  • Starter

    10-day free trial

    $19/mo

    9.5¢ per postthe starting rate

    Credits a month2,000
    • Up to 3 connected accounts
    • About 200 posts a month (about 6 a day)
    • 33 posts to all 6 platforms (almost 2 a day)
    • 21 X posts with a link
    • $9.50 per 1,000 credits

  • Growth

    10-day free trial

    $49/mo

    8.2¢ per post14% less than Starter

    Credits a month6,000

    Everything in Starter, and:

    • Up to 9 connected accounts(3×)
    • About 600 posts a month (about 20 a day)
    • 100 posts to all 6 platforms (about 3 a day)
    • 63 X posts with a link
    • $8.17 per 1,000 credits(Starter $9.50)
  • Lowest cost per post

    Scale

    10-day free trial

    $155/mo

    7.8¢ per post18% less than Starter

    Credits a month20,000

    Everything in Growth, and:

    • Up to 15 connected accounts(5×)
    • About 2,000 posts a month (about 66 a day)
    • 333 posts to all 6 platforms (about 11 a day)
    • 210 X posts with a link
    • $7.75 per 1,000 credits(Starter $9.50)

On every plan

  • Schedule posts or publish instantly
  • Image, GIF and video uploads
  • One post to every connected platform
  • A success or failure result per platform
  • Credits refunded automatically if a post fails
  • AI assistant access
  • Cancel any time

Create an account, pick a plan, and your first subscription starts with a 10-day free trial.

Create your account

Questions before you connect

Which platforms can I post to?

X, LinkedIn, Instagram, Facebook Pages, Threads and Bluesky. You connect each one by signing in to it from Content Mill (Bluesky uses an app password), and you can post to any mix of them in one go.

Do I have to rewrite the post for each platform?

No. A post has one text and one set of media. Content Mill checks it against every platform you picked and tells you what to change if one would reject it, so one text that works everywhere is usually enough. If you want different wording on a particular platform, make a separate post for it.

Does anything have to be open when a post goes out?

No. A scheduled post publishes from Content Mill at the time you picked, whether or not you are signed in and whether or not any assistant is open.

What happens if a platform rejects a post?

That platform fails on its own and the others still go out. Credits for the one that failed come back automatically, and you can see which one failed and why.

Can an AI assistant post for me?

Yes, if you connect one. It has to prepare a preview first, and only that exact preview can be published, once. It is instructed to show you the preview and wait for your yes before the second step. The yes itself is given in your conversation, and Content Mill can’t hear it, so connect assistants you trust to ask. Every attempt is recorded.

What is MCP, and which assistants work?

MCP is the standard way an assistant connects to a tool. Content Mill is an MCP server, so adding it is one URL and a sign-in, with no API keys to copy. Claude, ChatGPT, Cursor, Claude Code and Codex are supported.

Write it once.
Post it to every account.

Create your account

Your first plan starts with a 10-day free trial. Sign in