Write Code, See Diagrams — Instantly
DesignSQL features a Monaco-powered DBML (Database Markup Language) editor — the same editor used by VS Code — with visual diagrams that update instantly as you type. No need to click "generate" or reload. Code and diagrams are always in sync.
[MOCKUP PREVIEW]editor-dbml
Key Features
- Full syntax highlighting for DBML — keywords, data types, strings, numbers, comments, and operators are color-coded differently
- Real-time error markers — red squiggly lines under incorrect code, hover to see error messages along with line and column locations
- Diagrams automatically update within 600ms of the last keystroke
- Code and diagram panels can be displayed side-by-side, or just one of them
- Green (ready) / red (error) status indicator at the bottom of the editor
- Context-aware autocomplete — suggestions change intelligently based on whether your cursor is inside a table, inside column settings, or at the root level
- Parameterized type autocomplete — selecting types automatically fills in default lengths or precision (e.g., varchar(255), decimal(10,2))
- Ready-to-use snippets / templates — type and select to generate complete structures
- All data types from 3 databases (PostgreSQL, MySQL, MSSQL) available as autocomplete suggestions
- VS Code native features — supports multi-cursor editing, regex find/replace, line duplication, and advanced code navigation