Reladraw
Open Source🔄 Alternative to MermaidA diagram language where you decide where to place things
🐳 Self-Hostable🔓 No Sign-up Required⚡ Traction Signal: 81/100
★396 Stars / Upvotes
💡 What Problem Does Reladraw Solve?
Reladraw is an open-source diagramming language that combines programmatic definition with precise manual layout control. It solves the rigidity of traditional auto-layout tools by letting developers define diagram logic while retaining explicit control over positioning.
CategoryDeveloper Tools
Commercial AltMermaid
Self-HostableYes (Docker/Local)
Sign-up RequiredNo (Instant Access)
⚡ Key Capabilities & Architecture
#1Code-Driven Diagrams
Define nodes, edges, and relationships using a clean, human-readable domain-specific language.
#2Explicit Positioning
Override automatic layout engines to place elements precisely where you want them.
#3Open Source & Extensible
Fully self-hostable and customizable codebase tailored for technical documentation workflows.
⚖️ Why Choose Reladraw Over Mermaid?
Unlike Mermaid, which strictly enforces automatic node placement, Reladraw gives developers the freedom to programmatically define diagrams while retaining precise control over element positioning.
🎯 Who is this for?
Software architects and developers who want code-driven diagrams without sacrificing layout control.
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