JSPM

JavaScript library for mobile-friendly interactive maps

Checks if a point is inside an area, like a city boundary.

Determines the geometric center of a polygon or shape.

Finds the central point of a GeoJSON feature, like a city or a park. Ideal for placing labels or markers.

Truncates precision of GeoJSON coordinates.

Split a LineString by another GeoJSON Feature.

Takes any LineString or Polygon and returns the overlapping lines between both features.

Reduces the number of points in a shape while keeping its overall look.

Takes a bounding box and calculates the minimum square bounding box that would contain the input.

Finds the difference between multiple polygons by clipping the subsequent polygon from the first.

Calculates the length of a line, perfect for paths or routes.

Determines whether the first geometry is completely within the second geometry.

Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).

Flattens any GeoJSON to a FeatureCollection

Takes a Feature and a bbox and clips the feature to the bbox using lineclip.

Divides a LineString into chunks of a specified length.

Converts a polygon to a line string.

Polygonizes a set of lines that represents edges in a planar graph.

Takes a Feature or FeatureCollection and returns the mean center.

Creates a triangular grid within a bounding box.

Determine whether two geometries of the same type have identical X,Y coordinate values

Removes redundant coordinates from a GeoJSON Geometry.

Returns the closest point, of a collection of points, to a line.

Finds the nearest point from a FeatureCollection of Features with Point geometries to a given point.

Creates a concave hull around points.

Creates a convex hull around points

Checks if two geometries have an area of overlap without one being completely contained inside the other.

Finds the “balance point” of irregular shapes, like a country outline.

Converts a bounding box to a GeoJSON polygon.

Converts line(s) to polygon(s).

Finds the shared area between two polygons.

Generates random points, lines, or polygons for testing.

Dissolves a FeatureCollection of Polygon features.

a JavaScript library for performing geospatial operations with GeoJSON

This package contains a JavaScript decoder for the experimental MapLibre Tile (MLT) vector tile format.

Utility for converting between WGS84 lat/lng and MGRS coordinates

Calculates the distance from a point to the edges of a polygon or multi-polygon.

Provides Beautiful Animated Marker Clustering functionality for Leaflet

Determine whether none of the points common to both geometries intersect the interiors of both geometries.

Framework-independent loaders for the WMS (Web Map Service) standard

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

Tiled maps on a globe as a ThreeJS reusable 3D object

A tiny and fast Leaflet heatmap plugin.

Light-weight JavaScript Bounding Box Utility Functions

Proj4JS Projector Fully Loaded with Projections

Almost All the Projection Definitions for Proj4js

Leaflet plugins for consuming ArcGIS Online and ArcGIS Server services.

Mapbox GL JS plugin for switching map language to the browser language.

Snap a Bounding Box to a Grid

Reproject a Bounding Box

Merge Multiple Proj4 Instances

Wrapper around Georeferenced Rasters like GeoTIFF, NetCDF, JPG, and PNG that provides a standard interface

Reproject GeoJSON. Works Offline.

Re-project a line.

A tool for editing vector datasets for mapping and GIS.

Blazing Fast JavaScript Raster Processing Engine

Reference Implementation of the Dufour-Peyton Intersection Algorithm. Calculates the Intersections of Arbitrary Polygons with a Geospatial Raster.

WMS service Capabilities > JSON, based on openlayers

ArcGIS Map Components

A basic ellipse type for Leaflet, a JS library for interactive maps.

Svelte bindings for MapLibre

Maplibre GL JS plugin for inspecting vector data

LAZ implementation compiled to WASM via Emscripten for LAZ support in a browser

Gets EPSG Code for Various Inputs (incl. OGC WKT, ESRI WKT, GML, Mapfile, PROJ String, Proj4js String, XML)

Custom Context Menu for Openlayers

All the 138,398 cities of the world with a population of at least 1000 inhabitants, in a big JSON array

Bindings to GDAL (Geospatial Data Abstraction Library) with full async support

turf polygon module

Provides the ability to use SVG patterns as backgrounds for Leaflet Paths.

Display GeoTIFFs and soon other types of raster on your Leaflet Map

Vector tile rendering and labeling for [Leaflet](https://github.com/Leaflet/Leaflet).

ArcGIS Maps SDK for JavaScript common components

3D BIM IFC Viewer SDK for AEC engineering applications. Open Source JavaScript Toolkit based on pure WebGL for top performance, real-world coordinates and full double precision

Parse WKT-CRS (Well-known text representation of coordinate reference systems)

A custom layer for heatmaps in react-leaflet

Simple, Modern Geospatial Bounding Boxes

JavaScript Geo Visualization and Analysis Library

OpenLayers Wrapper for Vue3

A custom layer for heatmaps in react-leaflet

A set of React components that wrap ArcGIS map components

[](https://www.npmjs.com/package/min-bounding-rectangle) [](https://www.npmjs.com/package/min-bounding-rectangle) [![n

PostGIS extension for PGlite

AMap高德地图API加载器。

gdal3.js is a port of Gdal applications (**gdal_translate**, **ogr2ogr**, **gdal_rasterize**, **gdalwarp**, **gdaltransform**) to Webassembly. It allows you to convert raster and vector geospatial data to various formats and coordinate systems.

React Components for OpenLayers

Esri Leaflet plugin for visualizing Feature Layers as clusters with L.markercluster.

Contains components for editing code in different languages. The currently supported languages are html, css, json, TypeScript, JavaScript, and Arcade.

Leaflet Control for searching markers/features by attribute on map or remote searching in jsonp/ajax

wind layer core

A light JavaScript library to create integrated 2D/3D maps.

A simple yet powerful module to retrieve organic search results and much more from Google.

Turbo-charge your Re-projection Functions

Tools to help with TMS, Quadkey & Google (XYZ) Tiles

Build interactive web maps effortlessly with MapLibre GL JS and Svelte

ol wind

Mapbox GL JS plugin for enabling/disabling traffic

Parse OGC Geography Markup Language in Pure JavaScript

turf featureCollection module

Javascript implementation of GEOS's Polygonize function

turf lineString module

Super Low-Level Raster Reprojection and Resampling Library

esri-leaflet plugin for rendering

Adds HTML Canvas Support to GeoWarp

A responsive sidebar just for Leaflet

A set of React components that wrap ArcGIS charts components

PostGIS support for PostGraphile

A set of React components that wrap ArcGIS coding components

CesiumJS是一个JavaScript库，用于在web浏览器中无需插件创建3D地球仪和2D地图，mars3d-cesium是mars3d团队修改版本的CesiumJS。

A JS/WebGL framework for 3D geospatial data visualization

ArcGIS Portal Components

Vue 3.x components for CesiumJS.

BIM viewer built on xeokit

A Leaflet plugin for working with Web Map services, providing: single-tile/untiled/nontiled layers, shared WMS sources, and GetFeatureInfo-powered identify

The ArcGIS Maps SDK for JavaScript provides this CLI tool to streamline the process of creating a new web mapping application.

A Node-RED node to provide a web page of a world map for plotting things on.

The JavaScript (& TypeScript) API for Targomo's time-based access mapping services.

A simple loading control for Leaflet

Add time dimension capabilities on a Leaflet map

primitive SVG renderer for geojson with feature styles

Provides Beautiful Animated Marker Clustering functionality for Leaflet

A set of React components that wrap ArcGIS portal components

turf isClockwise module

A leaflet plugin for pre-loading map tiles that are outside the current viewport

A responsive sidebar for mapping libraries like Leaflet or OpenLayers

GeoGirafe is a flexible application to build online geoportals.

Transform a GeoJSON bounding box into an Esri-formatted extent object.

The geospatial toolkit for AI agents — query, convert, and verify spatial data with zero config. 6 tools for bounding boxes, coordinate projection, H3 indexing, OpenStreetMap queries, and shareable map verification links.

JavaScript utilities to create .XKT files

find whether spatial features overlap

Potree loader for ThreeJS, converted and adapted to Typescript.

parsing an esri file GDB IN JAVASCRIPT!

Leaflet plugin to enable the rotation of map marker icons

Provides beautiful animated Marker clustering functionality for Leaflet.

Geoprocessing and reporting framework for SeaSketch 2.0

Shared utilities for Leaflet maps and Dutch (NL) geo standards

Bindings to GDAL (Geospatial Data Abstraction Library)

A custom layer for heatmaps in react-leaflet

Create N number of random points inside of a polygon

A responsive sidebar plugin for Leaflet

Mars3D三维可视化平台

Transform coordinates from one coordinate system to another.

Labels for leaflet maps

WebGL-powered geographical maps.

A Leaflet plugin to view coordinates

Solid Component Library for Mapbox GL JS

WorldWindJS is an interactive 3D globe library featuring imagery, maps, terrain and 2D projections from the Web WorldWind virtual globe SDK from NASA and ESA plus several community contributions.

Inverted polygons for Leaflet

Edit the style of features drawn within Leaflet.

Give me your coordinates and I'll tell you where the nearest cities are. Works offline.

GIS通用组件 - Vue 3 超图版本

中科软地图js

Deck.gl extension for rendering Cloud-Optimized GeoTIFF (COG) data

Convert OCAD files to GeoJSON

MapLibre-based map editor component

A leaflet control plugin to make simple rotating compass

Mars3D Vue3 地图组件库 - 封装了基础地图、测量、绘制、视角控制及 POI 标注、轨迹管理等业务组件

地域メッシュのコードと緯度経度の変換ユーティリティ

WebGL-based 2D/3D viewer engine built on Three.js. View DWG/DXF/PDF files in the browser with no server required. Supports glTF, OBJ, FBX, IFC, STL and BimTiles formats.

MCP server for maps.guru — geocoding, map styles, GIS export, and more for AI assistants

Control OpenLayers maps with hand gestures via MediaPipe webcam hand tracking. Pan, zoom, and rotate with no backend.

一个基于cesium的地图工具包，支持使用天地图作为底图资源。用于在web上创建3D地图应用。目前还在开发中，敬请期待~

A simple and easy-to-use library to provide the OpenLayers map screenshot.

A lightweight, type-safe Node.js library for interacting with PostGIS-enabled PostgreSQL databases. Supports GeoJSON, Geobuf, MVT tiles, spatial queries, and more.

Provider-agnostische Web-Mapping-Komponentenbibliothek auf Basis von Stencil.js — unterstützt OpenLayers, Cesium, Leaflet und Deck.gl über ein einheitliches deklaratives Web-Component-API.

HMPPS Electronic Monitoring Frontend Components

LithoSphere is a GIS JavaScript library for building 3D tile-based globes in the web browser.

Mars3D 在 Vite 平台的插件

Mapbox GL JS plugin for inspecting vector data

Mars3D平台插件,结合echarts可视化功能插件

Vue 3 Composition API hooks for Mapbox GL JS

This package allows you to easily convert a shapefile to geojson.

Vanilla-JS isometric / flat-map hybrid engine

Rust adaptation of Proj4

A modern react-based map viewer for MapGuide

GDPR-compliant javascript map library developed by YellowMap AG

erase features

Vue 3 components for MapLibre GL - reactive map components with full TypeScript support

Labels for leaflet maps

Font-GIS icons for stx from Iconify

Leaflet Control Layers extended for group of layers and icons legend

A Leaflet plugin that provides a minimap in the corner of the map view.

The awesome aWhere API for JavaScript.

Mars3D平台插件,结合mapv可视化功能插件

turf centroid module

A WebGL interactive maps library to use Barikoi maps and API

3D Tiles plugin for SoonSpace.js

leaflet wind

Advanced geometry editing plugin for MapLibre GL with Geoman integration

Mars3D平台插件, 卫星及相关视锥体可视化功能

纯前端 Shapefile 解析与导出工具库，无需后端服务，支持 GeoJSON 互转、坐标系自动识别、多种编码检测

Google maps extensions for for Targomo's time-based access mapping services.

Provides Beautiful Animated Marker Clustering functionality for Leaflet

Tool to achieve the easiest way of communication with the map

GeoScene Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

Mars3D平台插件,结合heatmap可视化功能插件

AirCity 云渲染 API 封装库 - 简化三维场景开发

Bindings to GDAL (Geospatial Data Abstraction Library) with non-default drivers

A native Web Component for displaying maps using OpenLayers or MapLibre.

Edit the style of features drawn within Leaflet.

Unofficial JS SDK for the Nominatim Open Street Map service that allows geocoding and reverse geocoding

WMTS scheme for Javascript applications

MapLibre GL JS polygon drawing and editing library

Modern Angular wrapper for OpenLayers with modular architecture, standalone components, and hybrid template/programmatic API

A modern JavaScript/TypeScript utility library that extends lodash with practical, intuitive behaviors. Fixes lodash quirks, adds Promise support, Japanese text processing, and GeoJSON utilities.

turf center module

Vue EMAP - Vue 3 地图组件库

Convert IFC (BIM) to GeoJSON (GIS) - Browser and Node.js compatible

kml与geojson互转工具类

VestMap delivers on-demand location intelligence for real estate professionals. Pull demographics, population, household income, median rent, home values, crime indexes, schools, employment, growth projections, and FEMA natural hazard risk; sourced from E

webworker for wind-gl-core

Vue 3.x components for CesiumJS.

Mars3D平台插件,支持气象 风向图 功能插件

An experimental WASM package from Rust implementation of the H3 geospatial indexing system

Geographical utilities for location-based Node.js applications

Convert a GML Polygon into GeoJSON.

Mars2D地理信息平台

convert between lonlat and HEALPix coordinates

turf clean-coords module

convert an epsg code to a proj string

Leaflet plugin for plotting a marker representing a user, or multiple users, on a Leaflet map

A simpler module for GIS based on [cesium](https://www.npmjs.com/package/cesium).

my-openlayer 是一个基于 [OpenLayers](https://openlayers.org/) 的现代地图组件库，专为 Web GIS 应用开发者设计。提供完整的 TypeScript 支持、模块化的类型定义、强大的错误处理和事件管理系统，支持天地图底图加载、要素绘制、图层管理、事件监听等丰富功能，极大提升地图开发效率。

GeoJSON simplification library using the Visvalingam algorithm for efficient point reduction and geometry preservation.

Control Google Maps with hand gestures via MediaPipe webcam hand tracking. Pan, zoom, and rotate with no backend.

Custom Cesium build with camera adjustments and fixed URI dependencies

Node.js SDK for CSV2GEO Geocoding API — 461M+ addresses, 39 countries, 48+ endpoints. Forward, reverse, batch, places, boundaries (postcode → polygon, ancestors walk-up, children walk-down, consolidated cities), IP geolocation with county overlay, coverag

Geodesic-aware visibility graph implementation to support shortest path calculations on multi destination

A lightweight tile map using threejs. (No SSR)

GeoJSON morphing utilities with MapLibre-first adapter and Leaflet compatibility

Mars3D平台插件,支持对天地图三维地名服务和地形服务加载使用

GeoTIFF reader support for @thi.ng/pixel

A forked version of https://github.com/protomaps/protomaps.js for use in terria-js https://github.com/TerriaJS/terriajs

A simple yet powerful module to retrieve organic search results and much more from Google.

A tiny and fast Leaflet heatmap plugin.

gemini-viewer is a WebGL based JS SDK, it is built on top of three.js. It provides following viewers:

mapbox wind

MapGIS Mobile for React Native，是MapGIS推出的一款基于React-Native的跨平台移动开发框架，用户可以基于它使用JavaScript开发出在Android和iOS平台下运行的原生移动GIS应用。

Provides Beautiful Animated Marker Clustering functionality for Leaflet

GIS and PostGIS dictionary for cspell.

geo4326 converts footprint of satellite to polygon of EPSG:4326.

WebAssembly and asm.js module for OpenSphere. Built with [emscripten](https://github.com/kripken/emscripten).

Provides a compatible WMTS Tile Server from MBTiles.

GDPR-complient javascript sdk for Tilestack functionalities based on Maplibre developed by YellowMap AG

BMap extension for echarts

Give me your coordinates and I'll tell you where the nearest cities are. Works offline.

gis公共组件

Get all tiles of a web map in x,y,z coordinates for a specified bounding box and zoom.

maplibre wind

A modern, lightweight Leaflet plugin for displaying WMTS tile layers.

Modern TypeScript geohash toolkit — encode, decode, cover polygons, and build Nostr filters