Composer Social — white-label social publisher

Compose once, post everywhere

Write your post, drop in one or more photos, then publish to Facebook, Instagram, and LinkedIn at once.

Load from content calendar

Import your calendar (.xlsx or .csv), then pick a posting day to auto-fill each platform's caption.

Facebook

Instagram

Post text Photos (up to 10 — carousel on Facebook & Instagram; LinkedIn uses the first)

Drag photos here or click to choose · JPG / PNG / GIF · select several for a carousel

or paste an image URL instead

✦ AI IMAGE uses your API key · billed per image

Link URL (Facebook / LinkedIn)

Facebook caption0

Instagram caption0 / 2,200

Over Instagram's 2,200-character limit.

LinkedIn caption0 / 3,000

Over LinkedIn's 3,000-character limit.

Settings brand & connections

Brand

Business name

Tagline

Website Logo (PNG/SVG — used in header & on review cards)

Primary

Accent

Highlight

Sets the header, buttons, and Five Star card colors. Saved in this browser.

Publishing webhook (Zapier Catch Hook — operator setup)

Media storage · user

Media repo (public)

Branch

Media storage token (GitHub fine-grained · Contents R/W)

Saved only in this browser on this computer. Used to upload photos to your public image repo.

AI image API key (optional — leave blank when the server key is installed)

Optional local key. On a hosted site with the server key installed, AI works with this blank — the key never leaves the server.

Ctrl + ↵ publish

Your Business

Facebook · Just now

FACEBOOK

yourbusiness

Instagram · Just now

INSTAGRAM

Your Business

LinkedIn · Just now

Connected publishing · Facebook · Instagram · LinkedIn · Powered by Composer Social