OAuth Channels
Supported channels
Every network, community and blog Sosial publishes to, with each one's text and media limits.
Sosial publishes to 17 channels. Connect any of them from Channels in the app, then pick them in the composer. A single post can go to all of them at once, and the composer counts characters against each channel's limit as you type.
Limits at a glance
| Channel | Text limit | Media |
|---|---|---|
| 2,200 characters | Up to 20 images or videos | |
| TikTok | 2,200 characters | — |
| X | 280 characters | Up to 4 images or 1 video per post |
| 63,206 characters | Photo, video, or a link preview | |
| Threads | 500 characters | Up to 10 items per post |
| YouTube | 5,000 characters | Vertical, up to 3 minutes |
| 3,000 characters | Image, video, document or poll | |
| Bluesky | 300 characters | Up to 4 images or 1 video |
| Mastodon | 500 characters on most servers | Up to 4 images or 1 video |
| 500 characters | — | |
| Telegram | 1,024 characters | Photos, video, documents and albums |
| Discord | 2,000 characters per message | Images, video and files in a post |
| WordPress | Effectively unlimited (100k+ characters) | Featured image and inline images |
| Dev.to | Effectively unlimited (100k+ characters) | — |
| Hashnode | Effectively unlimited (100k+ characters) | — |
| Ghost | Effectively unlimited (100k+ characters) | Feature image and inline images |
| VK | 16,384 characters | Photos, video and links with previews |
Select a channel name for its full guide: what works there, common mistakes and FAQs.
Social networks
Instagram, TikTok, X, Facebook, Threads, YouTube, LinkedIn and Pinterest connect with the network's own sign-in. Mastodon signs in on your own server, and Bluesky uses an app password. Each channel has its own page in this section with the exact steps.
Messaging and communities
Telegram posts to a channel through a bot, and Discord posts to the specific channel a bot or webhook is set to. VK posts to a community or to your profile.
Blogs
WordPress, Dev.to, Hashnode and Ghost publish long-form articles. They connect with an API key or application password instead of a sign-in, and support a canonical URL so a republished article doesn't compete with your own blog in search.
Tip: a post that's perfect on LinkedIn is usually too long for X. Write the long version once, then shorten it per channel in the composer.
Last updated: Oct 28, 2026, 1:52 PM UTC