Crosspost
Free, from Found

Post on X. Show up on LinkedIn.

Free Chrome extension. Same post, images included. Plus your best old posts, on a schedule.

Why I built it

Every client I have came from X. I never found time for LinkedIn.

$4Mmade through X
1place to write
0new apps or logins

1Post once, show up twice

Post on X. It lands on LinkedIn: instantly, after a countdown, or on your click.

  • Skips replies and quotes
  • Threads become one post
  • #xonly keeps a post on X
Posting on X, with the Post to LinkedIn pop-up ready to send the same post and images

2Your best old posts

Import your X history. Top posts first. One key to queue, skip or edit.

Review your best old posts one at a time, sorted by likes and views

3A calendar that fills itself

Pick your days. Empty slots fill with your best posts.

Month calendar with suggested posts filling open slots

4Personal posts stay on X

Weekend photos and "gm" posts stay on X. Press P to teach it.

Images carry over

Up to 9 per post.

Better hooks

Optional rewrites in your voice, with your Claude key.

Private

Runs in your browser. No servers, no account.

Posted history, with images carried over to LinkedIn
Posted, images included.

On any screen

Review on a phone Calendar on a phone

Set it up

10 minutes, once. It walks you through it.

  1. Add to Chrome

    Unzip. chrome://extensions → Developer mode → Load unpacked.

    2 min
  2. Make a LinkedIn app

    Free. Copy its Client ID and Secret.

    6 min
  3. Connect and import

    Click Connect, then pull in your X posts.

    2 min

What you need

Desktop ChromeRequired
A LinkedIn accountRequired
LinkedIn developer appFree
LinkedIn Company PageFree
Claude API keyOptional

Details

Is it free?

Yes, forever.

Why my own LinkedIn app?

So Crosspost never holds your LinkedIn login.

How does it spot personal posts?

A quick score in your browser. Press P to correct it.

Open source?

Yes, MIT. Read the code on GitHub first.

Does Chrome need to be open?

For scheduled posts. Missed ones go out when it opens.

From the X phone app?

No, desktop Chrome only.

Video?

Not yet. Text still posts.

Claude costs?

Optional. You pay Anthropic directly.

What's Found?

Our AI email app. You get early access.

Get Crosspost free

Email in, download out.

Plus early access to Found.