Open-source alternatives to De9im

AngularJS directive to embed an interact with maps managed by Leaflet library

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

Command line tool to generate point labels from GeoJSON polygons.

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

A command-line tool for reducing the size of GeoJSON files.

CoGran - A command line tool for combining data of different spatial granularity

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.

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

Sample heat map implementation in Javascript

Libraries of geodesy functions implemented in JavaScript

Winnow is made for applying sql to geojson in memory. It is useful for working against geojson objects but also has built-in primitives for piping streams.

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.

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

Blazing Fast JavaScript Raster Processing Engine

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.

Multiply single type geojsons into a multi type geojson

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

Quick GeoJSON tools for editing and modifying geojson data, focusing on indoor features.

Command line tool to extract borders of GeoJSON Polygons into a non-overlapping set of LineString's. See https://github.com/topojson/topojson-client#mesh