Social Publishing

PostClaw publishes to 10+ major platforms from a single composer.

Supported Platforms

Twitter / X

• Up to 280 characters per tweet (2,000 with Twitter Blue)
• Thread support: chain multiple tweets
• Image/video attachments (up to 4 images)
• Alt text for accessibility

Instagram

• Feed posts, Stories, Reels
• Caption up to 2,200 characters
• Up to 10 images per carousel
• Hashtag suggestions (AI-powered)

Facebook

• Page posts (text, link, photo, video)
• Up to 63,206 characters
• Scheduled publishing via Page token

LinkedIn

• Personal profile posts (Company Page publishing is pending LinkedIn Marketing Developer Program review)
• Article publishing
• Up to 3,000 characters

TikTok

• Video upload (MP4, MOV — max 4GB)
• Caption up to 2,200 characters
• Privacy controls: public, friends, private

YouTube

• Video and Shorts upload
• Title, description, tags, thumbnail
• Playlist assignment
• Made for Kids toggle

Threads

• Text up to 500 characters
• Image attachments
• Reply controls

Bluesky

• Text up to 300 characters
• Image attachments (up to 4)
• Custom link cards

Scheduling

PostClaw queues posts via Redis and processes them with a distributed worker. If a platform rate limit is hit, the post is retried with exponential backoff (max 5 attempts).

Best time suggestions are shown per-platform based on your audience’s historical engagement.

Templates

Save any post as a template under Templates in the sidebar:

1. Compose a post
2. Click Save as Template
3. Give it a name and optional tags
4. Reuse from the template picker

Templates support {{variable}} placeholders:

Excited to share {{topic}}!
Check it out: {{url}}
#{{hashtag1}} #{{hashtag2}}

Media Upload

Supported formats:

Videos over 40 MB upload in chunks directly to storage (paid plans — the Free plan caps uploads at 100 MB per file). Progress is shown in the media library.

Post States

draft → scheduled → publishing → published / failed

Failed posts show the platform error and offer a one-click retry.