Eight platforms, official APIs

One upload. Every platform.

Publish and schedule video, photos and text on Instagram, TikTok, YouTube and six more from one composer.

Publish to 8 platforms from one place

  • Instagram
  • Facebook
  • Threads
  • TikTok
  • YouTube
  • X
  • LinkedIn
  • Pinterest
Formats and limits

Every format, fitted to every platform

Each platform has its own rules for length, size and count. SocialSync knows them and adjusts your post before it goes out.

8

platforms take your video from a single upload.

  • Instagram

    Business and Creator accounts

    • Reels
    • Stories
    • Carousels

    Reels, Stories, feed photos and carousels of up to 10 items, with cover and alt text.

    Caption up to 2,200 characters

  • Facebook

    Pages

    • Posts
    • Photos
    • Reels

    Posts, photos, videos and Reels on the Pages you manage.

    Caption up to 63,206 characters

  • Threads

    Profiles

    • Text
    • Carousels
    • Video

    Text posts of up to 500 characters and carousels of up to 20 items.

    Caption up to 500 characters

  • TikTok

    Creator accounts

    • Video
    • Photo posts

    Videos of up to 10 minutes and photo posts, with your privacy, duet and stitch settings.

    Caption up to 2,200 characters

  • YouTube

    Channels

    • Videos
    • Shorts

    Regular uploads and Shorts with title, description, tags and visibility.

    Caption up to 5,000 characters

  • X

    Profiles

    • Posts
    • Threads
    • Media

    Posts with up to 4 images or a video. Long text is split into a thread for you.

    Caption up to 280 characters

  • LinkedIn

    Profiles and company pages

    • Text
    • Images
    • Video

    Text, images and video on your own profile or on a company page.

    Caption up to 3,000 characters

  • Pinterest

    Boards

    • Pins
    • Video Pins

    Image and video Pins on the board you choose, with title, description and link.

    Caption up to 800 characters

Scheduling

Post when your audience is awake

Schedule one time for every platform or a different time for each, in the time zone of your brand. SocialSync publishes on the minute, also while you sleep.

09:00New York15:00Warsaw22:00Tokyo
  • Retries without duplicates

    A failed publish is retried automatically. A retry never posts the same thing twice.

  • A time for each platform

    Morning on LinkedIn, evening on TikTok. One post, each platform at its own hour.

  • Alerts before a connection expires

    You get an e-mail before a platform connection runs out, so a dead token never breaks a scheduled post.

How it works

Designed to keep your accounts safe

Publishing for you should never put your profiles at risk. SocialSync is designed around that.

Official APIs, minimal permissions

You sign in on each platform and grant only the right to publish and read results. SocialSync cannot edit your profile or delete your content.

Upload onceSocialSync adapts itPublish or schedule

One composer, a post for each platform

Write once, then adjust the caption and options per platform, by hand or with AI.

See problems before you publish

Limits are checked while you type. Try the same check the composer runs: paste a caption and see how much room each platform leaves.

77 characters. The numbers show how many are left on each platform.

  • InstagramFits2123
  • FacebookFits63129
  • ThreadsFits423
  • TikTokFits2123
  • YouTubeFits4923
  • XFits203
  • LinkedInFits2923
  • PinterestFits723

Questions, answered

The short version of what people ask before they connect their first account.

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  • What is SocialSync?

    SocialSync is a social media publishing tool. You upload a video, photos or text once and publish or schedule it on up to eight platforms at the same time, with the caption adjusted for each one.

  • Which platforms does SocialSync support?

    Instagram, TikTok, YouTube, Facebook Pages, X, LinkedIn profiles and company pages, Threads and Pinterest.

  • Can SocialSync delete my posts or change my profile?

    No. SocialSync asks each platform only for permission to publish and to read results. It cannot take over or delete your account, delete your content, or change your profile name, picture, bio or links. Disconnecting an account removes our access and leaves everything on the platform untouched.

  • Does SocialSync use official APIs?

    Yes. Publishing goes through the official API of each platform, and you sign in on the platform itself. SocialSync never asks for your social media passwords.

  • Can I schedule a different time for each platform?

    Yes. A post can go out at one time everywhere or at a different time on each platform, in the time zone of your brand. You can schedule up to 12 months ahead.

  • Can an AI assistant publish for me?

    Yes. SocialSync has a REST API and an MCP server for assistants such as Claude or ChatGPT. Posts created by an assistant wait for your approval unless you turn on direct publishing for a brand.

Upload once and publish to every connected profile.

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