LessHeadCMS

LessHeadCMS is a headless CMS where the content model is a diagram. You describe your entities, fields and relations as a PlantUML class diagram, and LessHeadCMS generates the database schema, a REST API and an editorial interface from it.

Content modeling as a diagram

• The PlantUML file is the single source of truth for the schema
• Supports 1:1, 1:n and n:n relations, enums, inheritance, composite uniqueness and self-references
• Schema changes are applied to a filled installation without a reset: diff preview, data-loss warnings and an automatic backup before every migration

Generated editorial UI

• Forms, lists with filtering and sorting, media library and WYSIWYG editing, generated from the field types
• Versioning per record with history, comparison and restore
• Approval workflows, fine-grained roles and permissions down to field level
• Multilingual content and a fully translatable backend

Headless delivery

• Public REST API with pagination, filtering and sorting
• Read-only API users for frontends
• Webhooks to trigger static site builds on publish

Runs anywhere PHP runs

LessHeadCMS is about 4 MB, uses SQLite and runs on standard shared hosting: upload via FTP, call the bootstrap URL once, done. No root access, no Composer, no Node.js at runtime.

LessHeadCMS is open source under the AGPL-3.0 license.