Open-source alternatives to Jsmind

DesktopNaotu is a cross-platform mind mapping tool for creating and organizing hierarchical visual diagrams. It functions as an offline editor and standalone application for managing knowledge without requiring an internet connection. The application includes utility functions for mind map data conversion, allowing users to import and migrate files from third-party platforms into a compatible offline format. It also acts as a version-controlled diagramming tool that tracks the history of maps to allow for the review or recovery of previous versions. The software provides capabilities for loc

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

LogicFlow is an SVG-based flowchart editing framework and visual graph editor used for building customizable business process diagrams. It serves as a customizable diagramming engine for rendering business process models, entity relationship diagrams, and unified modeling language charts. The system is characterized by a plugin-based architecture that allows developers to define specialized graphical elements and register pluggable modules. A distinctive feature is its overlay system, which positions standard HTML components on top of the SVG canvas to create interactive menus and control pan

This project is a React drag-and-drop tree component and tree data management utility used for rendering nested hierarchical data. It provides a sortable hierarchical list that allows users to manage parent-child relationships and visualize complex tree structures. The component enables interactive tree restructuring, where users can reorganize the hierarchy by dragging and dropping nodes to change their parent or sequence. It supports moving or copying nodes between different tree instances and provides controls to enforce movement restrictions based on custom logic or depth limits. The too

zTree_v3 is a jQuery plugin for rendering hierarchical data as interactive tree views. It functions as a hierarchical data visualizer and tree component that displays nested data structures through expandable and collapsible nodes. The project includes a drag and drop tree manager for reorganizing hierarchical nodes and supports an asynchronous data tree component that loads content from remote sources to improve initial page speed. It provides capabilities for hierarchical data visualization and web interface tree management, including the ability to perform create, read, update, and delet

ui-grid is an enterprise data grid component for Angular applications designed to display tabular data. It functions as an interactive data table that supports virtualization to maintain performance when rendering large datasets. The grid provides specialized capabilities for professional data management, including row grouping, column pinning, and state persistence. It allows for the organization of complex data hierarchies and the transformation of flat records into grouped or tree structures. The component covers a broad range of data management features, including in-place cell editing,

MobX State Tree is a structured, tree-based state management library for JavaScript applications that combines typed model definitions with reactive snapshots and patch-based change tracking. It provides a reactive state container with runtime and compile-time type safety, where application state is defined as a tree of typed models with collocated actions, computed views, and lifecycle hooks for predictable state mutations. The library is built around an action-centric mutation model that encapsulates all state changes within named functions that directly modify the tree, supported by genera

Trilium is a hierarchical personal knowledge base and digital garden tool designed to organize information into a tree of linked nodes. It functions as a JavaScript programmable wiki and a self-hosted note server, allowing users to maintain a private database of documents synchronized across multiple devices. The platform distinguishes itself through an embedded scripting engine for automating tasks and a REST API that exposes internal data and actions to external tools. Users can further extend the system by modifying the user interface layout and styling through a custom theme engine. The

OpenSeadragon is a JavaScript library and tiled image rendering engine designed for high-resolution image viewing. It functions as a deep zoom image viewer that renders massive images using a tiled pyramid approach, enabling smooth panning and zooming without requiring the full image file to be loaded. The project distinguishes itself through broad support for standardized image retrieval protocols, including the International Image Interoperability Framework (IIIF), IIPImage, Iris, and OpenStreetMap. It provides a hardware-accelerated rendering layer via WebGL to apply real-time filters and

Regulex is a tool that parses regular expressions into interactive syntax diagrams, rendering them directly on an HTML canvas. It converts a regex string into an abstract syntax tree and visualizes the structure as a navigable diagram, making the internal logic of a regular expression visually accessible. Beyond basic visualization, Regulex provides syntax validation that detects and reports precise errors, including invalid back references and octal escapes. It also offers a state-machine visualization mode that maps regex AST nodes to NFA-like states and transitions, rendered as a directed

javascript-in-one-pic is a visual reference guide and cheat sheet that provides a high-level graphical overview of the JavaScript programming language. It maps core syntax and fundamental building blocks into a single diagram to serve as a comprehensive language overview. The project functions as a syntax reference and learning tool, using programming language visualization to help users locate and review language rules in a condensed format. The guide is implemented as a resolution-independent SVG diagram that uses a grid-based hierarchical arrangement and visual-spatial mapping to illustra

This project is a cross-platform mobile graphing library designed for rendering high-performance animated line charts and data visualizations. It functions as a canvas-based data visualization system and interactive charting component for mobile applications. The library focuses on animated data visualization, using interpolation to create smooth visual transitions between different data sets. It utilizes a GPU-accelerated graphics engine to maintain high frame rates and fluid transitions during data updates. The capability surface includes interaction systems for tracking pan gestures and d

Groupie is an Android list framework and data-driven UI mapper designed to organize complex list content and nested sections. It functions as a RecyclerView layout manager and grouping library that binds model objects to specific layouts while automating item changes. The library distinguishes itself by organizing related list items into manageable groups and expandable sections. It treats nested items as single units to simplify the management of complex, sectioned layouts and reduces the repetitive code required to connect data models to views. The framework covers broad capabilities inclu

Vue-easytable is a high-performance data grid component designed for the Vue.js framework. It provides a comprehensive interface for displaying and managing large-scale tabular data, utilizing virtual scrolling to maintain responsiveness by rendering only the visible subset of rows within the browser. The component offers spreadsheet-style interaction, enabling users to perform direct, in-place data editing and manipulation. It supports complex grid configurations, including column pinning, row expansion, and data filtering, allowing for the organization of structured information to improve r

Storm is an automated research platform that coordinates multiple language model agents to conduct internet-based information gathering and generate structured, citation-backed articles. The system functions as a modular framework that grounds generated content in real-time web data, ensuring that all outputs are verifiable and evidence-based. The platform distinguishes itself through a multi-agent discourse orchestrator that simulates expert dialogues to refine information discovery. By utilizing hierarchical concept mapping, the system organizes retrieved data into dynamic structures, allow

OpenSC2K is an open-source JavaScript city builder engine designed as a recreation of SimCity 2000. It functions as a web-based simulation that uses the Phaser 3 framework to implement game loops and entity management. The project utilizes WebGL and Canvas rendering to visualize large-scale urban environments. It includes a coordinate-based camera system that enables panning and zooming across the reconstructed game world. The engine incorporates a data pipeline to parse legacy city files and graphics assets, allowing it to reconstruct and display urban layouts within a modern web browser.

Paper.js is an HTML5 Canvas vector graphics library and scripting framework used for creating and manipulating 2D shapes and paths. It functions as a vector animation framework and a headless vector graphics engine, allowing for the execution of graphics operations in both browser and server-side environments. The project features a dedicated SVG import and export engine to convert between native vector items and the SVG format. It includes a specialized boolean path operation toolkit for uniting, subtracting, and intersecting vector paths to create complex geometric shapes. The library cove

VivaGraphJS is a JavaScript graph visualization library used to render interactive network diagrams and relational data in web browsers. It features a force-directed layout engine that employs physics-based simulations, using spring and charge models to calculate balanced spatial distributions for nodes and links. The library utilizes a modular rendering architecture that decouples mathematical layout logic from the visual output. This allows for interchangeable rendering pipelines, supporting both vector-based SVG diagrams and hardware-accelerated WebGL rendering for large-scale visualizatio

Makie.jl is a high-performance Julia data visualization library and hardware-accelerated plotting engine used to create interactive 2D and 3D visualizations. It functions as a reactive visualization framework where plots update automatically via observables and compute graphs, and as a vector graphics generator for high-resolution academic output. The system is distinguished by its backend-agnostic rendering pipeline, which supports OpenGL, WebGL, and ray-traced scenes. It employs a grammar-of-graphics approach to map variables to aesthetic attributes and utilizes a hierarchical scene graph t

Martin is a geospatial data API and vector tile server that delivers map tiles, styles, sprites, and glyphs to web map clients. It functions as a PostGIS vector tile server, generating tiles directly from databases, as well as serving data from MBTiles and PMTiles files. The project distinguishes itself through a specialized command line interface for managing MBTiles archives, allowing users to validate, compare, and merge offline map data. It also provides dynamic map styling capabilities, including the generation of signed distance field sprites for runtime recoloring and the on-the-fly pr

vue-echarts is a declarative charting wrapper and Vue.js component for the Apache ECharts library. It functions as a data visualization library that maps configurations and data updates to a rendering engine, enabling the embedding of interactive graphs and charts as reusable web components. The project provides a system for managing visual consistency through theme configuration and context-based injection. It allows for deep customization of the visualization interface, including the use of scoped slots to render custom HTML markup within tooltips and the construction of complex graphic ele

KLineChart is a high-performance financial charting library and data visualization engine. It uses native browser canvas APIs to render interactive candlestick charts and time-series financial data for web and mobile applications. The library is built as a plugin-based framework, allowing for the integration of custom calculation logic and rendering routines. This modular architecture enables the addition of technical analysis visualization tools and custom indicators to financial dashboards. The system handles real-time market data updates and computes technical indicators to visualize mark

fl_chart is a data visualization library and UI component framework for Flutter. It provides a system of reusable graphical widgets for creating interactive, customizable quantitative data visualizations. The framework supports a variety of chart types, including line, bar, pie, donut, scatter, radar, and candlestick views. It allows for the creation of complex visualizations such as layered data segments and financial charts. The library includes capabilities for interactivity and visual refinement, such as touch event handling, data tooltips, and state animations. It also provides tools fo

jsoneditor is a web-based JSON editor component designed for viewing, editing, and formatting structured data. It provides a user interface for managing JSON through multiple rendering modes, including tree, form, and code views. The project is distinguished by its ability to process and visualize exceptionally large datasets, utilizing virtualized memory management to handle JSON files up to 500 MiB without crashing the browser. It also includes a specialized syntax repair tool to convert malformed text into valid JSON and a data transformer for filtering, sorting, and reshaping documents vi

This project provides a collection of reusable UI components for rendering interactive, data-driven charts within web applications. It functions as a bridge between the framework's component-based architecture and low-level graphics libraries, allowing developers to encapsulate complex visualization logic into standard elements. The library distinguishes itself by integrating reactive data binding and lifecycle management directly into the charting process. This ensures that visual representations, such as bar, line, and pie charts, automatically synchronize with underlying data models and ad

react-native-maps is a cross-platform map component and visualization library for embedding interactive maps within mobile applications on iOS and Android. It provides a declarative interface for managing geospatial user interfaces, allowing for the rendering of geographical data and location-based features. The library enables the visualization of spatial data through the placement of markers, the creation of custom callouts, and the drawing of polylines and polygons as map overlays. It supports interactive map navigation, including the ability to animate map regions and customize the visual

This project is a utility library for the Google Maps SDK for Android, providing a suite of specialized tools for rendering geospatial data, calculating spherical geometry, and visualizing map markers and heatmaps. It serves as a helper collection to handle complex geospatial tasks within Android applications. The library features a marker clustering tool to group nearby markers into single icons and a map data visualizer for generating heatmaps based on the intensity and distribution of geographic points. It also includes a polyline encoding tool for compressing coordinate sequences into com