Data models read best when the shape of the schema is visible at a glance and the field level detail is one level in. These boards are free to open and edit, and code nodes let you keep the actual DDL next to the shape it describes.
Browse real flowcharts made with Gramit. Open any one of them in the editor, change it, and keep it. Free, no account needed.
Real system design diagrams you can open, explore level by level, and edit. Free and editable, no account needed.
Software architecture diagrams with real depth: every component opens into its own board. Free to open and edit.
Cloud architecture and infrastructure diagrams you can open and edit for free. AWS, networking, deployment topologies and more.
Network topology diagrams you can open, edit and export for free. No account, no signup wall.
Mind maps you can open and edit for free. Branches can nest as deep as your thinking goes.
Organisation charts you can open, edit and export for free. No account needed.
Nothing here quite right? Start from an empty board.