Proj4 Packages

use proj4 strings to map lonlat geometry to screen coordinates in a shader

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

Modern Spatial Reference System Class. Supports EPSG Codes, PROJ4 String, and Well-Known Text.

Find the geographic projection which best turns a given (X,Y) into an expected (lng, lat).

Projects geojson from any epsg-defined projection to any other defined epsg-defined projection

A tool for geotech analysis.

Transform coordinates from one coordinate system to another.

ogr2ogr wrapper w/ multiple format support

Proj4JS Projector Fully Loaded with Projections

A list of EPSG codes for Proj4.js

Merge Multiple Proj4 Instances

Function to pass custom proj4 strings to d3 projection

Almost All the Projection Definitions for Proj4js

A Node-Red node for performing geographic coordinate conversions

Convert geojson to specific projection. Includes brazilian projections to proj-geojson.

Reproject a Bounding Box

Reproject GeoJSON. Works Offline.

Re-project a line.

Projection Data Compressed to Fit in the Browser. Includes PROJ4 Strings, ESRI WKT, and OGC WKT

Reproject a geojson with proj4js