Open-source alternatives to LogicFlow

GoJS is a JavaScript diagramming library and canvas-based visualization engine used to build interactive flowcharts, organizational charts, and network diagrams. It functions as a data-driven framework that binds JavaScript data models to visual elements, enabling bidirectional synchronization between the underlying data and the graphical representation. The library features a comprehensive graph layout engine capable of automatically arranging nodes into trees, grids, circles, or force-directed layouts. It distinguishes itself through a template-based system for generating visual parts and a

Rickshaw is a JavaScript library for building interactive, SVG-based time series charts in the browser. It provides a framework for rendering line, area, bar, and scatterplot visualizations from data series, with built-in support for axes, legends, color palettes, and interactive controls. The library distinguishes itself through a plugin-based architecture that allows renderers to be swapped at runtime, such as switching between stacked area and line chart views while preserving chart state. It includes an event-driven interaction layer for hover details, click behaviors, and drag-based rang

3d-force-graph is a WebGL-accelerated component for rendering interactive network graphs in three-dimensional space. Built on the ThreeJS library, it positions nodes using a force-directed physics simulation that can be driven by either a D3-force or ngraph engine, producing dynamic layouts that users can rotate, zoom, and pan using mouse, keyboard, or touch controls. The component distinguishes itself through comprehensive camera control capabilities, including programmatic positioning, animated transitions, automatic timed orbiting, and zoom-to-fit functionality that frames all nodes within

react-diagrams is a framework for building interactive node-and-link diagrams and visual graphs within React applications. It functions as an interactive graph visualization tool and visual workflow designer, providing a system for rendering manipulatable canvases of connected nodes. The library is distinguished by its ability to act as a serializable state diagram manager, converting complex node layouts and connection states into storable data formats for session persistence. It further allows for custom behavior extensions to modify core logic and modules to implement project-specific func

Unovis is a modular SVG and Canvas data visualization library used to build interactive charts, maps, and network graphs. It provides a framework-agnostic set of primitives for creating data dashboards and specialized visualizations. The library is distinguished by its dedicated toolkits for different visualization domains, including an XY charting library for coordinated plots, a network graph framework for relational data, and a geospatial visualization toolkit for TopoJSON-based mapping. Its capability surface covers a wide range of data representations, including linear, area, and bar ch

Fireworks Tech Graph is a tool that generates SVG and PNG technical diagrams from natural language descriptions, supporting both English and Chinese input. It produces publication-quality diagrams for AI architectures, UML types, and other technical domains without requiring manual drawing or diagramming syntax. The tool distinguishes itself through a semantic shape vocabulary and arrow-based flow encoding that conveys component roles and data flow types through consistent geometric shapes, stroke widths, dash patterns, and colors rather than relying on textual labels. It renders the same dia

Highcharts is a JavaScript charting library and interactive data visualization framework used to render complex datasets as visual charts and maps. It functions as a customizable SVG charting engine that produces scalable vector graphics for data series. The library allows for the creation of interactive data visualizations with configurable colors, labels, and themes. It also provides a cross-platform visualization wrapper to embed these web-based charts into native iOS and Android mobile applications. The toolkit supports the development of custom dashboards and provides options to build c

Vue Flow is a TypeScript library for building interactive node-based editors and flowcharts. It provides the core infrastructure for creating diagrams where users can drag, select, and connect nodes with edges, supporting pan and zoom navigation of the canvas. The library offers extensive control over graph behavior and appearance, including the ability to customize connection lines, define custom edge types, and configure zoom constraints and viewport defaults. It includes built-in components like a minimap for navigation, zoom controls, and a fit-view button, along with features for node re

This project is a renderer and theme engine for Mermaid.js that converts diagram syntax into styled SVG graphics and ASCII text. It provides a type-safe diagram editor and a pipeline for transforming diagram source code into scalable vector graphics or plain text visuals. The system features a dedicated theme engine that maps editor colors and CSS variables to diagram elements. It enables dynamic diagram theming through CSS custom properties for real-time color updates and supports index-based styling to override the appearance of specific nodes and edges. The tool covers a range of visualiz

Flowy is a JavaScript library designed for building interactive, drag-and-drop flowchart interfaces. It enables the creation of canvas-based environments where users can arrange blocks to design custom logic sequences, decision trees, and visual process maps. The library provides a structured approach to diagramming by organizing elements into a hierarchical parent-child tree. It features coordinate-based snapping logic to ensure blocks automatically align into organized layouts during user interaction. To support complex system configurations, the tool includes event-driven callback hooks th

react-page is a browser-based visual content editor and schema-driven page builder developed with React and TypeScript. It provides a framework for creating web pages through a what-you-see-is-what-you-get interface, utilizing a responsive twelve-column grid engine for arranging elements via drag-and-drop manipulation. The system features a plugin-based architecture that allows for the integration of custom components. These components are managed through a schema-driven system that automatically generates data entry forms based on predefined property definitions, separating the rendering vie

Xboard is a containerized service orchestrator and management platform. It provides a Docker-based administrative dashboard for monitoring and controlling backend system services and configurations through a unified interface for operators and users. The platform utilizes a modular architecture and a dedicated plugin system, allowing for the registration of custom logic and the extension of core administrative functionality. It includes utilities for legacy data migration to transfer records and configurations from previous versions or alternative implementations into the current system sche

Nonebot2 is an asynchronous Python framework for building event-driven chatbots across multiple messaging platforms. It centers on a non-blocking event bus and a driver-based adapter system that unifies different messaging protocols into a single consistent interface. The framework utilizes a modular plugin architecture, allowing for the discovery and loading of third-party extensions to add new event handlers and system capabilities. It distinguishes itself with a type-annotation based dependency injection system that automatically resolves and provides required service objects to handlers a

mxgraph is a client-side graph visualization tool and JavaScript diagramming library. It functions as an SVG-based drawing framework used to create and render interactive diagrams directly within a web browser. The library enables the development of custom diagramming tools, such as network maps and flowcharts, by providing the means to draw and manipulate visual data structures. It focuses on client-side data visualization, allowing for the representation of complex node and edge relationships without requiring server-side rendering.

Relation-graph is a frontend library designed for building interactive node-link diagrams and relationship visualizations within web applications. It provides a framework for rendering complex network structures that support manual manipulation, including zooming, dragging, and real-time structural editing. The library distinguishes itself through a framework-agnostic core that separates graph layout logic from the rendering layer. This architecture enables developers to inject custom HTML or framework-specific components directly into graph nodes and edges, allowing for highly tailored visua

Datamaps is a library for generating interactive, data-driven geographic visualizations within web applications. It utilizes scalable vector graphics to render maps, allowing for precise styling and responsive resizing across different screen sizes. The library provides a declarative configuration pattern that binds custom datasets to geographic regions. This enables the creation of choropleth maps, where regions are color-coded based on statistical values, and point-based overlays that represent individual data points as interactive bubbles. Beyond basic rendering, the toolset includes capa

Flowchart.js is a JavaScript library that converts a simple text-based domain-specific language into SVG flowcharts. It parses DSL keywords to define node types such as start, end, operation, condition, parallel, and subroutine, then renders them as distinct SVG shapes connected by directional paths. The library distinguishes itself through its styling and interactivity capabilities. It supports applying CSS classes to SVG elements for external stylesheet overrides, as well as inline attribute overrides for per-node and per-edge visual properties like fill, stroke, and font. Flowchart.js also

nvd3 is a data visualization framework and reusable web graphing library. It provides a collection of interactive charting components built on top of the D3.js library to render complex datasets as graphics within a web browser. The library functions as a wrapper for D3.js, offering predefined chart types and modular templates. This implementation allows for the creation of custom data graphs and web dashboards without requiring the author to write low-level SVG code from scratch. The system utilizes SVG-based vector rendering and attribute-driven styling to generate visualizations. It incor

This project is a React-based framework for constructing interactive, node-based visual interfaces. It provides a platform for building canvases where users define, connect, and organize logical processes, data pipelines, or complex workflows through a graphical interface. By utilizing a modular component architecture, it enables the development of low-code environments, visual programming tools, and interactive diagramming applications. The framework distinguishes itself through a declarative approach where state changes automatically synchronize with the visual representation of nodes and e

LightTable is an extensible source code editor and integrated development environment designed as an interactive programming environment. It enables the evaluation of programming language fragments in real time to provide instant feedback on expressions. The workspace functions as a remote execution environment, connecting to and managing external servers to run code within remote processes. It allows for an interactive workflow where users can execute code fragments and track expression values without restarting the environment. The system provides source code editing capabilities, includin

Opentui is a terminal user interface framework for building interactive command line applications. It provides a component-based system featuring a flexbox layout engine, a virtual node component tree, and a low-level 2D cell array renderer. The project is distinguished by a sophisticated keyboard binding engine that maps complex multi-stroke sequences and chords to named commands using prioritized, reactive layers. It also implements a plugin architecture that allows external modules to inject custom UI components into designated layout slots and extend input logic at runtime. Its capabilit

This project is a high-performance library for rendering interactive, force-directed network visualizations within an HTML5 canvas. It provides a physics-based engine that calculates node positioning through simulated attraction and repulsion forces, enabling the representation of complex relational data structures as dynamic, navigable graphs. The library distinguishes itself through its ability to handle large-scale datasets containing thousands of nodes and links while maintaining interface responsiveness. It offers granular control over the visual representation of data, allowing for cust

Lexical is a modular rich text editor framework used to build extensible web-based editors. It functions as a state-driven content editor that maintains a serializable, immutable snapshot of document content to ensure predictable updates and accessibility compliance. The framework is distinguished by its plugin-based architecture and customizable node framework, which allow developers to extend editor behavior through specialized content nodes and encapsulated runtime logic. It also includes a collaborative editing engine capable of synchronizing document state across multiple clients in real

BTCPay Server is a non-custodial payment gateway and invoice manager designed for accepting Bitcoin and other cryptocurrencies directly into a private wallet. It serves as a self-hosted payment infrastructure that allows merchants to manage digital invoicing and storefronts without relying on third-party intermediaries. The system distinguishes itself through a non-custodial wallet architecture that ensures private keys remain on the user's own hardware or server. It integrates the Lightning Network for instant, low-cost transactions and provides a hardware-wallet signing bridge to secure tra

ApexCharts is a comprehensive JavaScript charting library designed for building interactive, responsive, and data-driven visualizations within web applications. It functions as a versatile data visualization framework that supports a wide range of chart types, including categorical, statistical, and financial plots, enabling developers to construct complex dashboards and real-time monitoring interfaces. The library distinguishes itself through a deep commitment to accessibility and high-performance interactivity. It provides built-in support for keyboard navigation, screen readers, and high-c

ECharts is a JavaScript data visualization library and web charting framework used to render interactive 2D and 3D data plots within a web browser. It functions as a visualization engine that transforms raw data into customizable charts and graphs. The project includes a WebGL-based hardware acceleration engine specifically for producing three-dimensional plots and globe visualizations. This allows the library to handle large and complex datasets through GPU-accelerated rendering. The framework supports both canvas-based raster rendering and SVG-based vector rendering. It provides capabiliti

Blockly is a block-based coding library and visual programming editor that allows users to build programs by interlocking graphical blocks. It functions as a visual code generator, translating these arrangements of logic blocks and variables into executable source code for various programming languages. The library provides a framework for creating custom visual programming languages and low-code logic designers. It utilizes an SVG-based UI library to render interactive, draggable elements on a web canvas. The system is designed as an accessible web UI framework with integrated keyboard navi