PostOnce provides a simple way to write a post once (including images and videos) and publish it to multiple social networking services with one click.

We currently support posting to:

• Bluesky
• Mastodon
• Threads
• X (formerly, Twitter)
• LinkedIn

Our goal is to save you time, by reducing the need to copy and paste across multiple websites. We show you character limits and other constraints (such as the allowed number and type of media), so that you can be sure that your post will publish as expected.

If and when the fediverse fulfills its promise, you should not need to post separately to federated services, but some services (such as X) will probably never join the fediverse, so PostOnce will be useful when you want to post to the fediverse and non-federated services.

Also, even services in the fediverse have different constraints (for example, Bluesky does not support posting videos at this time). PostOnce helps you navigate those differences.

PostOnce is in beta, so access is by invitation only, at this time. If you are interested in trying it out, please email us at: hello@postonce.app