Postiz
Open-source · self-hostable · replaces 1 SaaS tool on os-alt
gitroomhq/postiz-app · alive · ★ 30.2k · last commit 3d ago · 183 open issues
License: AGPL-3.0
Good fit for Creators and small agencies who want a Buffer-shaped UI (calendar + composer + queue) under their own domain.
Weak at OAuth approval friction — you need to register developer apps on each platform (Meta, X, LinkedIn) which can take a week for Instagram review.
In a terminal? npx -y github:SolvoHQ/os-alt-cli buffer prints
the Buffer comparison table including Postiz.
how the CLI works →
Replaces these SaaS
- Buffer · Social media scheduling + analytics
Use the official compose at docs.postiz.com. There's no Buffer importer — recreate the connected channels (you re-authorize each platform via OAuth in Postiz admin). Existing scheduled posts in Buffer don't transfer; export your Buffer queue as CSV and bulk-create in Postiz via its API. Postiz supports the same channel set as Buffer plus Mastodon/Bluesky out of the box.
README badges for the SaaS this replaces
Maintainers and forks: drop a badge in your README to link readers from the SaaS-comparison page back to your repo.
