IGC CMS vs. Wix, Payload, Sanity & Builder.io

How IGC CMS lines up against Wix, Payload, Sanity and Builder.io. The short version: the visual-builder depth of Wix, the extensibility of Payload, plus block-level collaboration and role controls none of them have — and a built-in way for AI assistants to work on your content.

Visual builder

Feature	IGC CMS	Wix	Payload	Sanity	Builder.io
Visual drag-drop builder	✓	✓	✗	✗	✓
Custom block code	✓	✗	✗	✓	✓ (paid)
Raw HTML / whole-site import	✓	✗	✗	✗	✗
Multi-column rows with custom ratios	✓	✓	✗	✗	✓
Mobile preview + per-breakpoint styles	✓	✓	✗	✗	✓

Collaboration

Feature	IGC CMS	Wix	Payload	Sanity	Builder.io
Multi-user editing	✓ per-block lock	✗	✗	✓	✗
Presence indicators	✓ per user	✗	✗	✓	✗

Locking one block at a time fits a page builder, where the unit of work is a block. Document-style live merging fits a text editor, not a layout.

Access control

Feature	IGC CMS	Wix	Payload	Sanity	Builder.io
Page-level role control	✓	✓	✓	✓	✓ (paid)
Block-level role control	✓	✗	✗	✗	✗
Data-source permissions (list / create / update / delete)	✓	✗	✓	✓	✗
Role hierarchy (admin › editor › author › moderator › user)	✓	✗	✓	✓	✗

Hiding or showing an individual block by role is something none of the others do.

Extensibility

Feature	IGC CMS	Wix	Payload	Sanity	Builder.io
Plugin system	✓	✗	✓	✓	✓ (paid SDK)
Custom data sources in the builder	✓	✗	✓ (via API)	✓	✗
AI assistant tool access	✓	✗	✗	✗	✗
Open source / self-hosted	✓	✗	✓	✓	✗

Content & publishing

Feature	IGC CMS	Wix	Payload	Sanity	Builder.io
Blog / posts	✓	✓	✓	✓	✗
SEO fields + automatic sitemap	✓	✓	✓	✓	✓
Revision history	✓	✓	✓	✓	✓
Templates & reusable blocks	✓	✓	partial	✓	✓
Forms + submissions	✓	✓	✓	✗	✓ (paid)
Navigation management	✓	✓	✗	✗	✗
Media library	✓	✓	✓	✓	✓

Summary

IGC CMS sits in a spot none of the others occupy: a deep visual builder, real extensibility, block-level collaboration and role controls, and a built-in interface for AI assistants — open source and self-hosted.