Open-source alternatives to Folium

This project is a Google Maps React wrapper and integration library that bridges the Google Maps JavaScript API with a declarative component-based architecture. It provides an interactive map component for rendering map views, markers, and overlays using geographic coordinates and custom HTML. The library serves as a geographic data visualization tool and a map-based search interface. It enables the implementation of place search functionality and autocomplete inputs integrated directly with the map view. The capability surface covers location-based services including route visualization, pa

This C++ data visualization library is a scientific plotting framework used to create 2D and 3D charts, network graphs, and geographic maps. It operates as a multi-backend graphics library, decoupling high-level plotting logic from low-level rendering engines to support various output backends. The project distinguishes itself with a dual-interface API, providing both a global functional interface for rapid prototyping and an object-oriented interface for precise control. It features a component-based layout engine for managing tiled grids and subplots, alongside a layered plot state that all

Leafmap is a Python geospatial visualization library designed for creating interactive maps and performing geospatial analysis within Jupyter environments. It provides a comprehensive set of tools for building interactive map interfaces, browsing and visualizing SpatioTemporal Asset Catalog items, and connecting to PostGIS databases for spatial data rendering. The project distinguishes itself through a backend-agnostic rendering system that allows users to switch between different mapping engines while maintaining a consistent API. It features specialized capabilities for Cloud Optimized GeoT

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

This project is a declarative visualization library and geospatial framework designed for rendering large-scale data sets within web browsers. It functions as a high-performance graphics engine that leverages hardware acceleration to display complex 2D and 3D visual layers, enabling the visualization of millions of data points through a structured, component-based syntax. The framework distinguishes itself through its ability to synchronize custom data visualizations with third-party mapping platforms. By managing camera states and coordinate systems, it allows developers to overlay high-perf

L7 is a WebGL-powered geospatial visualization engine and browser-based GIS engine designed for high-performance rendering of large-scale 2D and 3D spatial datasets. It functions as a geographic data visualization library that leverages hardware acceleration to display massive datasets and heatmaps within a web browser. The engine features an abstracted basemap integration layer that decouples data visualization from the underlying map provider, allowing for the use of various map providers or offline deployments. It employs a system for visual variable mapping to translate numeric and catego

This project is a collection of reusable components designed to integrate Google Maps into web applications built with the Angular framework. It provides a declarative interface for embedding interactive maps, allowing developers to configure map instances, markers, and overlays directly through standard framework templates and property bindings. The library distinguishes itself by wrapping imperative mapping services into a lifecycle-managed architecture. It handles the asynchronous loading of external mapping scripts and ensures that map instances and event listeners are properly cleaned up

mini-tokyo-3d is a 3D transit map visualization system that renders public transport networks and vehicle movements in real time using open data. It functions as a real-time transit tracker and an interactive transport route finder, providing a WebGL map embed that can be integrated into web pages and external applications. The system features a multilingual transit interface that translates transport identifiers and navigation elements into multiple languages. It tracks vehicle positions by simulating movements based on live timetables and service delay information. The project covers publi

TagSpaces is an offline-first file tagging and organization platform that lets you manage local files with portable metadata stored directly in filenames or sidecar JSON files, eliminating the need for a central database. It functions as a full-text file search engine, a Kanban board file organizer, a local AI file assistant, an S3-compatible cloud file manager, and a web clipper and bookmark manager, all within a single application. The project distinguishes itself through a local-first architecture where all file operations, indexing, and AI processing run entirely on the device, with cloud

GeoPandas is a Python library that extends pandas with native support for geospatial data. It treats geographic geometries—points, lines, and polygons—as a first-class column type within DataFrames, enabling users to store, manipulate, and analyze vector spatial data alongside traditional tabular attributes. The library is built on top of proven geospatial components: it uses Shapely for all geometric operations, Fiona and GDAL for reading and writing standard spatial file formats, PyProj for coordinate reprojection, and an R‑tree spatial index (from Shapely) to accelerate spatial queries. Wh

PySAL: Python Spatial Analysis Library Meta-Package

ScottPlot is a cross-platform, high-performance charting library for .NET that renders interactive plots across desktop and web GUI frameworks including Windows Forms, WPF, MAUI, Avalonia, Blazor, and WinUI. It provides an optimized rendering engine capable of displaying millions of data points with interactive pan, zoom, and live data streaming, while also supporting image export to formats like PNG and SVG for file output, cloud applications, and notebooks. The library distinguishes itself through a comprehensive set of chart types including scatter, line, bar, pie, heatmap, financial, rada

go-echarts is a data visualization library and wrapper for Go that generates JSON configurations for the ECharts JavaScript library. It functions as an HTML chart generator, allowing developers to create interactive charts and browser-based reports within Go applications. The library provides a collection of configurable chart types and predefined geographical map templates for rendering spatial information. It supports the creation of web dashboards by translating Go data structures into the JSON formats required for interactive browser rendering. The project handles the conversion of Go st

deck.gl is a GPU-accelerated geospatial engine and WebGL2 data visualization framework. It functions as a high-performance spatial visualizer and map overlay library designed to render large-scale spatial and temporal datasets. The system specializes in mapping data arrays into visual layers for complex geographic representations. It provides the capability to create interactive visual overlays and cartographic projections that align with various third-party map providers. The framework supports large-scale data visualization, interactive spatial analysis, and the development of custom high-

Cobe is a WebGL globe library designed for interactive 3D geographic data visualization. It functions as a canvas-based map component that renders a world map, allowing for the plotting of latitude and longitude coordinates via markers and connecting arcs. The library distinguishes itself by linking standard HTML elements to 3D coordinates using CSS anchor positioning. This integration enables the attachment of DOM elements, such as labels and tooltips, directly to markers and arcs on the sphere. The system covers geographic data plotting and network connection mapping, utilizing automated r

This project is a Model Context Protocol server that enables large language models to generate and render data visualizations, charts, and diagrams. It functions as a toolset for AI assistants to transform raw data into professional visual representations. The server utilizes an intelligent selection layer to determine the most effective visualization format based on the provided data. It supports remote rendering via external HTTP services and provides the flexibility to route requests to self-hosted rendering endpoints for private network environments. Capabilities cover a wide range of da

Wuhan2020 is an open platform for collecting, validating, and visualizing epidemic relief data, originally focused on coordinating community response during the COVID-19 crisis. It aggregates information on hospitals, factories, logistics providers, hotels, and donations from multiple sources into a central repository, making it accessible through an interactive geographic map and a programmatic API. The platform distinguishes itself by using GitHub issues as its primary data store, with label-driven organization and command-based task assignment that allows volunteers to claim and track work

go-echarts is a Go library and wrapper for Apache ECharts used to create interactive data visualizations. It functions as a generator that produces the configurations and HTML files necessary to render complex datasets as visual charts and graphs in a web browser. The library includes specialized tools for geographic data visualization, allowing spatial information and distributed datasets to be mapped using coordinates and regional boundaries. The project supports exporting visualizations as standalone HTML files for static use or serving them through an HTTP server for web-based dashboardi

Earth is an interactive web-based platform for visualizing global weather, ocean, and atmospheric data. It animates particle flows representing wind, ocean currents, and waves on a customizable map, and supports overlaying color-coded meteorological, oceanographic, chemical, and particulate data for detailed analysis. The platform distinguishes itself by offering multiple cartographic projections—including orthographic, equirectangular, and stereographic—that can be switched to view global patterns from different perspectives. It also provides keyboard-driven navigation, allowing map rotation

Chartkick is a Ruby on Rails visualization library and JavaScript charting wrapper that provides a high-level interface for integrating interactive charts into web applications. It functions as a multi-engine charting adapter, wrapping various JavaScript charting libraries to provide a consistent API for rendering data visualizations. The project is distinguished by its engine abstraction, which allows users to switch between different JavaScript charting libraries without modifying the underlying data sources. It also supports asynchronous data visualization, fetching chart data from remote

Omim is a suite of compilers and orchestrators designed to transform raw geographic and transit data into renderable offline map binaries. It provides a map generator for converting OpenStreetMap data into optimized binary files, a styling compiler for visual feature representation, and a rendering engine for visualizing geographic data from local storage without an internet connection. The project includes a map tile build orchestrator that sequences generation and optimizes resource utilization based on historical statistics. It also features a dedicated transit data processor that transfor

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 provides a suite of interfaces and tools for accessing electricity carbon intensity and production metrics. It includes an API for real-time and historical data, a geographic power data map for visualizing regional carbon intensity and renewable energy percentages, and a system for extracting datasets required for standardized greenhouse gas emissions reporting. The project features an interactive API sandbox that allows users to test requests and inspect data responses without writing code. It also includes mechanisms for institutional email verification to manage access to hist

This project is a cross-platform mapping SDK and hardware-accelerated rendering engine implemented in C++. It provides a shared geospatial core that allows for the embedding of interactive maps into Android, iOS, macOS, Node.js, and Qt applications. The system focuses on high-performance vector tile rendering using OpenGL and GPU primitives to display interactive 3D landscapes and complex geospatial datasets. It transforms compressed protocol buffers into customizable visuals through a style-driven layer pipeline. The capability surface extends to comprehensive location services, including g

Graphite is a node-based visual design environment that integrates vector illustration, raster image processing, and motion graphics generation into a single platform. It utilizes a functional reactive pipeline and a data-flow execution model to propagate state changes through a graph of interconnected nodes, allowing users to construct complex, automated design workflows. The platform distinguishes itself through a context-aware evaluation engine that injects runtime metadata—such as coordinate data and loop indices—directly into the node graph. This enables the creation of procedural geomet