Blast to Instagram, X, YouTube and more, right from your notch.

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Post to all platforms

Stamp your postcard with all the profiles you want to send it to.

Schedule posts

Schedule date and time, get reminders and see all your posts at a glance.

Entirely Private

100% local, you don’t even make an account

Multiple Accounts

Connect as many accounts as you need

Create Carousels

Upload up to 4 images at a time

Easily Adjust

Crop photos and add covers mid post

Hey It’s Jason.

(the guy who built PostBox)

I’m an interface designer, and every time I wanted to post a design I would lose hours by getting sucked into feeds.

Here was the cycle: Open the app, get pulled into the feed, come back out later having posted nothing. Then do it again on the next one.

So I took it analog, lol.

PostBox is one drag and drop. Your post goes everywhere at once and you never have to open a feed to do it. I built it to feel pleasant, so I’d actually want to post.

There are AI agents that will post for you (postiz.com and post-bridge.com are great ones to checkout). I built this for editors and designers instead. A lot of moments are easier to drop in yourself than to describe to an agent, and honestly for me it’s faster this way.

It’s free. All of it. I needed to finish one product well and this was the one I wanted to finish. You don’t need to donate or anything. If it helps you, send it to a friend. That’s the most helpful thing you could do for me.

Best,

Jason Coawette

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Supported Platforms

These are all the platforms you can post to, straight from your notch.

It’s Free!

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Questions & Answers

If you have any other questions, please get in touch

What does PostBox do?

Drop finished work into your MacBook notch, write one caption, choose the destinations, and post.

What does it cost?

Free.

What do I need for X?

Your own X API tokens. Add them in PostBox before posting to X.

Does it change my original file?

No. Crops, compositions, and delivery versions are separate copies.

Can I schedule posts?

Yes. Scheduling is included.

Can I use more than one account on the same platform?

Yes. Add as many as you need.

What happens if a post fails?

The draft stays put. PostBox shows which destination failed so you can retry it.

PostBox runs on your Mac

The download is a macOS app, so it won't open on this device. Send yourself the link and finish on your Mac.

postbox.sh/download

Requires macOS 15 or later.