solnk supports 9 platforms. Each platform supports different content types and has its own requirements.
Content types by platform
| Platform | Text only | Images | Video | Carousel / Thread | First comment |
|---|---|---|---|---|---|
| X / Twitter | Yes (280 chars) | Up to 4 | 1 video | Not currently available | Yes |
| No (media required) | Up to 10 | Up to 10 | Carousel (up to 10) | No | |
| Yes | Up to 10 | 1 video | Photo album | Yes | |
| TikTok | No (media required) | Up to 35 | 1 video | Photo Mode | No |
| YouTube | No (video required) | No | 1 video | No | Yes |
| Threads | Yes (500 chars) | Up to 20 | Up to 20 | Not currently available | No |
| Bluesky | Yes (300 chars) | Up to 4 | 1 video | Not currently available | Yes |
| Yes (3,000 chars) | Up to 20 | 1 video | No | Yes | |
| No (media required) | 1 image | 1 video | No | No |
Images and videos cannot currently be mixed in the same post. Choose either images or one or more videos within the platform limit.
The composer currently publishes one main post per selected account. Thread/serial-post composition is not available yet, even where the social network itself supports it.
Account requirements
| Platform | Requirement |
|---|---|
| Business or Creator account (personal not supported) | |
| Facebook Page only (not personal profile) | |
| TikTok | An account accepted by TikTok's Content Posting API; availability is confirmed during connection |
| YouTube | Google account with a YouTube channel |
| Personal profile or Company Page (admin required for pages) | |
| Business account | |
| Threads | Instagram Business/Creator account with Threads enabled |
| Bluesky | Any account — uses App Password (not your login password) |
| X / Twitter | Any account |
Platform-specific options
When creating a post, some platforms show additional settings:
- Pinterest — Select which board to pin to, add a destination URL
- YouTube — Set title (required), privacy status, category, tags, and thumbnail
- TikTok — Direct Post or send to TikTok inbox, privacy and interaction controls, branded-content settings
- Facebook — Post or Reel selection when a video is attached
X, Instagram, Threads, Bluesky, and LinkedIn do not currently expose extra settings in the solnk composer.
Scheduling support
Scheduling is available on: X, Instagram, Facebook, LinkedIn, TikTok, YouTube, Pinterest.
Threads and Bluesky do not support scheduling — posts to these platforms are published immediately via "Post Now" only.
What's not currently supported
- Editing published posts (no platform API supports this)
- Instagram direct messages
- Facebook Groups or personal profiles
- YouTube image posts
- Mixing images and videos in the same post
- Thread/serial-post composition
For detailed media size and format limits, see media formats and sizes.
For X-specific allowances, URL-post pricing, first comments, and failure messages, see X publishing limits and allowances.