rdtool
multiplayer entity relationship diagram SaaS
Think "Figma", but for ERDs
Alpha release - 99% Postgresql dialect support
Alpha release is
FREE
View a sample Twitter ERD
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Supported Databases
designing twitter schema in erdtool in 20 minutes, exporting the schema as sql, and using that sql (watch at 2.5x ~8 minutes)
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Features
Realtime multiplayer ERD editor
Composite foreign keys and relationships
Indexes - All Postgres Index types supported
NULL and Check Constraints
Highlight columns
Build and Highlight relationships
Highlight foreign-key-cols
Highlight referenced-cols
Highlight primary-keys, indexes
All postgres column types
default/generated values
Check constraints
Postgres custom types (enums, custom-ranges, domains, composite-types)
Views
Export diagram as SQL
Export diagram as PNG
Export diagram as Excel
Search diagram
Links to different diagram components
Undo redo
Layers to visually group elements together
Publically accessible link to diagram
Realtime Comments
Follow Collaborators!
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Missing Features for full PostgreSQL dialect support (coming soon!)
Full text index
Triggers
Functions
WHERE clauses in index
Github/Support
Blog
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