Social media for artists, posted once.

There isn’t one anymore. Instagram and TikTok still reach the most people, Bluesky and Threads are where many artists found community, and some still get commissions on X. Most artists end up on several. PostOnce lets you post once and appear on every one you choose.

PostOnce never uses your art to train AI. You keep ownership of your work: PostOnce’s terms only license it to run the service and the posts you ask for. What each platform does with posts, including AI training, is set by that platform, and PostOnce can’t change it. You choose every app a post goes to, and you can remove one from your workflow anytime.

Only when an app requires a shape. Instagram and Facebook feed posts must be between 4:5 and 1.91:1. If a piece falls outside an app’s range, PostOnce trims the edges slightly, or adds white borders instead when trimming would cut more than a quarter of the image. Square and 4:5 pieces fit everywhere without trimming.

PostOnce copies the image from your original post, so it’s as sharp as that app’s copy. It only resizes a file when it’s bigger than a destination allows, for example Bluesky’s 2 MB limit.

Yes. Carousels, slideshows and photo posts go out with all their images on Instagram, TikTok, Facebook, LinkedIn and Threads. Bluesky and X take the first 4 images, and Pinterest up to 5. YouTube only takes videos, so photo posts skip it.

No. PostOnce posts to Instagram, TikTok, YouTube, Facebook, LinkedIn, X, Threads, Bluesky and Pinterest. Keep posting to Cara, Tumblr, ArtStation and DeviantArt by hand.

PostOnce posts through each platform’s official posting APIs, the same way schedulers do. In our test of 40 YouTube channels there was no consistent drop in views after they started posting through PostOnce. Reach problems usually come from account standing, not from how a post was uploaded.

Your original caption goes with it, and you can add your own text before or after it for each app, like your commission link on Bluesky. Bluesky allows 300 characters, so longer captions are shortened to fit. Put the important part first.

Yes, the sound in your video goes with it. Sounds picked from an app’s own music library are licensed to that app, so another platform may mute or remove the video.

Yes. Where the app you post on allows it, PostOnce can pull in your existing posts and send them out in scheduled batches, so a new account doesn’t start empty.

PostOnce works as one: post your piece where you already post, and it publishes the same post to your Bluesky, Threads, X, TikTok and other accounts.

Yes. The trial is 7 days with no credit card, and paid plans can be cancelled anytime.