A social media scheduler for every network you post to
PostQuest schedules posts to ten networks from one calendar. Pick a network to see what you can schedule there, how PostQuest compares with the network’s own scheduler, and what usually makes a post fail.
Last updated
Scheduler guides by network
Every network PostQuest publishes to
Networks without a scheduler guide yet link to their specs page, which lists every format and limit PostQuest checks.
| Network | Post types | Caption limit |
|---|---|---|
| Instagram specs | Photo Post, Reel, Carousel Post, Photo Story, Video Story | 2,200 characters |
| Text Post, Link Post, Image Post, Image Post / Carousel, GIF Post, Video Post / Reel, Reel, Photo Story, Video Story | 5,000 characters | |
| X (Twitter) | Text Post, Image Post, Carousel Post, GIF Post, Video Post | 280 characters |
| YouTube specs | Video, Short | 5,000 characters |
| TikTok specs | Video, Photo Post, Photo Carousel | 2,200 characters |
| Pinterest specs | Image Pin, Video Pin, Carousel Pin | 800 characters |
| Text Post, Link Post, Photo Post, Multi-Image Post, Video Post, Document Post | 3,000 characters | |
| Threads specs | Text Post, Link Post, Photo Post, Video Post, Carousel Post | 500 characters |
| Bluesky specs | Text Post, Link Post, Photo Post, Carousel Post, Video Post | 300 graphemes |
| Mastodon specs | Text Post, Link Post, Photo Post, Carousel Post, GIF Post, Video Post, Audio Post | 500 characters (instance default) |
Need exact image and video sizes? See the social media image sizes and specs. Prefer to work from an AI assistant? Read how PostQuest connects to Claude and ChatGPT.
Social media scheduler FAQ
Which social networks can PostQuest schedule to?
PostQuest publishes to Instagram, Facebook, X, YouTube, TikTok, Pinterest, LinkedIn, Threads, Bluesky, and Mastodon. You can schedule one post to several of them at once and adjust the caption for each network.
Is there a free plan?
No. PostQuest has a seven-day free trial with 20 connected accounts and 20 scheduled or published posts, and no card is required. After the trial, plans start at $15 a month. The native schedulers in Meta Business Suite, LinkedIn, and X are free if you only need one network.
Can an AI assistant schedule posts for me?
Yes. Claude and ChatGPT can connect to PostQuest over MCP. The assistant creates drafts by default, and scheduling, publishing, or deleting a post needs your explicit approval.
Schedule posts that pass these checks
PostQuest validates every caption and file against these limits before a post is scheduled, so nothing fails at publish time.