PyPI · RubyGems98Exceptionalhealth index

materialsproject/pymatgenPython Materials Genomics (pymatgen) is a robust materials analysis code that defines classes for structures and molecules with support for many electronic structure codes. It powers the Materials Project.
Python · Polar★ 1,963↓ 763.4K/moSep 10, 2026
npm98Exceptionalhealth index

mermaid-js/mermaidGeneration of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown
TypeScript · Mermaid · JavaScript★ 90.8K↓ 147M/moOct 19, 2026
npm97Exceptionalhealth index

clientIO/jointA proven SVG-based JavaScript diagramming library powering exceptional UIs
JavaScript · TypeScript★ 5,386↓ 224.7K/moSep 19, 2026
PyPI94Exceptionalhealth index
HTML · Lobster · Python★ 27↓ 708.2K/moSep 9, 2026
npm93Exceptionalhealth index

likec4/likec4Visualize, collaborate, and evolve the software architecture with always actual and live diagrams from your code
TypeScript★ 5,555↓ 641.9K/moAug 28, 2026
npm · Maven93Exceptionalhealth index
Java★ 13.4K↓ 853/moOct 14, 2026
npm91Excellenthealth index
TypeScript★ 132.1K↓ 2.1M/moSep 16, 2026
npm90Excellenthealth index

penrose/penroseCreate beautiful diagrams just by typing notation in plain text.
TypeScript · HTML★ 7,985↓ 5,521/moOct 4, 2026
crates.io · npm89Excellenthealth index
Rust★ 620↓ 134.9K/moOct 20, 2026
npm89Excellenthealth index
TypeScript★ 883↓ 65K/moSep 24, 2026
PyPI88Excellenthealth index
Python★ 2,446↓ 4,302/moSep 20, 2026
Go88Excellenthealth index

d2lang/d2D2 is a modern diagram scripting language that turns text to diagrams.
Go★ 25.5KSep 23, 2026
PyPI88Excellenthealth index
Python · Jinja★ 411↓ 6.3M/moAug 27, 2026
NuGet · npm84Excellenthealth index

EvotecIT/ChartForgeXChartForgeX renders polished charts, visual blocks, topology diagrams, and static report visuals from .NET without adding runtime chart dependencies to generated output.
HTML · C#★ 47Oct 20, 2026
Maven · npm84Excellenthealth index
JavaScript★ 4,297Aug 28, 2026
npm · RubyGems83Excellenthealth index
JavaScript · Ruby★ 175↓ 83.4K/moSep 11, 2026
npm83Excellenthealth index
TypeScript★ 4↓ 736/moSep 11, 2026
npm83Excellenthealth index

tt-a1i/archifyAgent skill for beautiful, verifiable architecture, workflow, sequence, data-flow, and lifecycle diagrams—self-contained HTML with motion and crisp export.
JavaScript · HTML★ 23.8K↓ 10.3K/moAug 28, 2026
Go81Excellenthealth index

k1LoW/ndiagndiag is a high-level architecture diagramming/documentation tool.
Go★ 194Oct 4, 2026
Go80Excellenthealth index

madstone-tech/lokoC4 architecture documentation tool with LLM integration via MCP — design systems conversationally, render D2 diagrams, generate beautiful docs
Go · Shell★ 1Oct 19, 2026
npm80Excellenthealth index

sametcn99/vitepress-mermaid-rendererTransform your static Mermaid diagrams into interactive, dynamic visualizations in VitePress! This powerful plugin brings life to your documentation by enabling interactive features like zooming, panning, and fullscreen viewing.
TypeScript · Vue★ 67↓ 31.7K/moSep 10, 2026
npm · Maven77Goodhealth index

transitrix/transitrix-studioVS Code + IntelliJ IDEA extension for editing and previewing Transitrix diagrams — BPMN, Goals, DGCA, capability maps. Text-first; live preview as you type. MIT licensed.
TypeScript★ 11↓ 2,124/moSep 12, 2026
Go · npm73Goodhealth index

LarsArtmann/go-outputWrite your data once. Render it anywhere. 16 output formats across tables, trees, and diagrams, plus NOM-style real-time progress visualization. Zero heavy deps in root.
Go★ 1Sep 9, 2026

SchemaTex/SchemaTexEvery diagram a doctor, engineer, or lawyer would actually use. Free. Fully open source. Made for AI. 20 industry-standard diagrams from a text DSL. Pure SVG, zero deps.
TypeScript · MDX★ 76↓ 3,340/moSep 9, 2026
Python★ 493Sep 21, 2026

lemonlion/KronikolA mechanism for tracking the request-responses in your tests and converting them into PlantUML diagrams.
C#★ 17Aug 23, 2026

diagrammo/dgmo-mcpRender 32 diagram and chart types to SVG/PNG with browser preview and HTML reports.
TypeScript · JavaScript★ 3↓ 3,856/moSep 9, 2026

winlp4ever/canvas-harnessLightning-fast canvas-rendered, headless node-graph & whiteboard library for React. Scales past where React Flow and Excalidraw slow down.
TypeScript★ 14↓ 12.1K/moOct 16, 2026
Python★ 1↓ 32.8K/moSep 5, 2026
npm63Moderatehealth index
TypeScript★ 2↓ 1,286/moSep 13, 2026