A new rendering engine for Mermaid
Diagrams, rendered properly.
Your AI agent writes great Mermaid. Default viewers render it badly. line9 is a new engine for the same syntax — superior layout, presentation-ready type, no markup changes.
State Machine
§ 01
Why line9
§ 01
Layout that argues.
Intelligent placement, honest orthogonals, crossings minimised. Diagrams read like they mean it — no manual pushing of boxes.
§ 02
Semantic zoom.
Zoom into detail or out to the shape of the system. Labels, groups, and edges adapt at every level rather than scaling blindly.
§ 03
Type, not decoration.
Themes designed as typography, not palettes. Export to SVG, PNG, and PDF with the same care a typesetter would bring.
§ 02
Side by side
§ 02·01 State Machine
§ 02·02 Authorization Flow
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