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Schedule a post to multiple platforms

Cross-post the same content to multiple social accounts in a single scheduled post - with optional per-platform tweaks to caption, media, and platform-specific settings.

Updated 2026-04-141 min read

PostFast lets you write one post and publish it to multiple social accounts at once, with optional per-platform customization for the cases where "the same text everywhere" doesn't fit.

1. Open the composer

From the sidebar, click New Post at the top. You'll land on the Create post composer.

2. Add content

Add the base content that will be used across all platforms. You can attach images and videos too, depending on the platforms you're posting to.

Per-platform customization: enable the Enable platform specific content toggle to tailor the caption, media, or other fields for each platform individually. Handy when X's character limit clashes with a longer LinkedIn post, or when you want platform-specific hashtags.

3. Choose your social media accounts

  • In the Post settings panel on the right, open the Schedule tab.
  • Select one or multiple accounts to post to.

4. Platform settings (optional)

Open the Platform settings tab to tune platform-specific options - for example, different publishing behavior for X, Instagram, or TikTok. Whatever you set here applies to every post on the corresponding platform.

5. Schedule, post, or save

Back in the Schedule tab:

  • Click Pick time to schedule the post for a specific time.
  • Click Post now to publish to all selected accounts immediately.
  • Click the arrow next to Post now to save it as a draft inside PostFast.

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