documentation

Pick your way in.

The simplest way is the website itself — sign in and post. If you want fancier (ChatGPT, Claude, the terminal, Zapier, your phone's share sheet), each guide below walks you through it in plain English.

Every channel. Every format.

11 platforms

Tinyposter posts to all eleven major social channels and accepts every format each channel natively supports — text, photos, videos, and multi-image carousels. The same tools (website, ChatGPT, Claude, CLI, API, Zapier) drive all of them.

X (Twitter) · text 280, photo, 4-image carousel, video ≤2:20
Instagram · photo, carousel (10), Reels — media required
Facebook · text, photo, carousel, video, link
LinkedIn · text 3k, photo, carousel, video, link
TikTok · short-form video, caption 2,200
YouTube · Shorts + long-form video
Pinterest · image pin — image required
Bluesky · text 300, photo, 4-image carousel, video
Threads · text 500, photo, carousel (10), video
Reddit · text 40k, image, video, gallery, link
Mastodon · text 500, photo, 4-image carousel, video

Not sure which to pick?

Start with the website — it's the simplest. If you live in ChatGPT, open our GPT and paste a token (~60s). On Claude? Add an MCP server. Want a tap-to-post button on your phone? Try Share link & shortcuts.