Open-source alternatives to Geokit

JavaScript Topology Suite

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

Serverless raster and vector map tile generation using Mapnik and AWS Lambda

geotiff.js is a small library to parse TIFF files for visualization or analysis. It is written in pure JavaScript, and is usable in both the browser and node.js applications.

Libraries of geodesy functions implemented in JavaScript

Sample heat map implementation in Javascript

de9im is a Javascript library that provides spatial predicate functions defined by the Dimensionally Extended Nine-Intersection Model (DE-9IM)de9im-wiki and works with GeoJSONgeojson-site objects. It can test if two geometries have one of the following relationships: contains, coveredby,…

A performant binary encoding for geographic data based on flatbuffers that can hold a collection of Simple Features including circular interpolations as defined by SQL-MM Part 3.

Blazing Fast JavaScript Raster Processing Engine

Converts GeoJSON to SVG string given SVG view port size and maps extent.

Geometric.js is a JavaScript library for working with points, lines, polygons, and angles. It uses plain JavaScript arrays for geometry primitives, includes TypeScript declarations for editor autocomplete and type checking, and works in modern browsers and Node.js.

gmaps is a library that provides a wrapper for the Google Maps API, serving as a geospatial data toolkit and interactive map renderer. It simplifies the integration of interactive maps into web applications by managing the embedding of map views and the lifecycle of markers. The project distinguishes itself through a specialized set of utilities for geocoding, which converts physical addresses to geographic coordinates and vice versa. It also includes a static map generator for creating non-interactive map images for lightweight environments. The capability surface covers geographic data vis

gcoord is a coordinate conversion library that transforms geographic coordinates between China's three major map coordinate systems: WGS-84, GCJ-02, and BD-09. It handles the offset corrections required by national encryption policies, converting GPS or API-derived coordinates to align with the projections used by Chinese map providers like Baidu, Gaode, and Google China. The library provides direct conversions between all three systems, including WGS-84 to GCJ-02, WGS-84 to BD-09, GCJ-02 to BD-09, and their reverse transformations. It processes individual coordinate pairs, batches of coordin

This is the leaflet plugin for GeoServer. Using this plugin user can have access to wms and wfs request easily.

A real-time vehicle fleet simulator that runs vehicles on actual road networks with A\* pathfinding, realistic motion physics, BPR traffic congestion, time-of-day patterns, geofencing, incident-based rerouting, session recording, and a custom browser-side map rendering engine — no map tile…

Openstreetmap static maps is a nodejs lib, CLI and server open source inspired on google static map service

SpatiaLite 5.1.1-rc0 and friends - sqlite 3.51.1, geos 3.14.1, proj 9.7.1, rttopo 1.1.0 - for node (sync API) and browser (async API).

Transform, query, and download geospatial data on the web.

Vue 2 components for Leaflet maps

Geolib is a geospatial calculation library and point analysis tool. It provides a collection of utilities for computing distances, bearings, and areas between coordinates, as well as converting geographic measurements and coordinate formats. The library features a Well-Known Text geometry parser to convert WKT strings into coordinate structures for polygon analysis. It includes specialized tools for geofencing and point containment, enabling the determination of whether a coordinate falls within a defined polygon or a specified radius. The toolset covers broad capability areas including loca

A compact binary encoding for geographic data.

Merge multiple GeoJSON files into one FeatureCollection.

This project is a geospatial data rendering engine and OpenStreetMap road network visualizer. It functions as a vector map visualization tool that imports geocoded area data and converts road layouts into visual layers for digital or physical output. The system enables the creation of generative map art and stylized images intended for physical production via pen-plotters or laser cutters. It allows for the manipulation of line widths and colors of city streets to produce custom visual representations of urban environments. The engine provides capabilities for urban road visualization, geogr