Gets EPSG Code for Various Inputs (incl. OGC WKT, ESRI WKT, GML, Mapfile, PROJ String, Proj4js String, XML)
Get EPSG code from WGS84 coordinates
Request tiles from WMS servers that support EPSG:3857
Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.
Super Light-Weight Utility Functions for Working with Universal Transverse Mercator
Get the EPSG Code for a GeoTIFF.
A machine-readable index of all EPSG coordinate systems.
Almost All the Projection Definitions for Proj4js
Reproject a Bounding Box
List of all EPSG definitions from Proj4JS, adapted from proj4js-defs.
Reproject GeoJSON from one projection/CRS to another
Provides tools for conversion between geographic coordinates and projected coordinates.
Parse WKT-CRS (Well-known text representation of coordinate reference systems)
Proj4JS Projector Fully Loaded with Projections
A list of EPSG codes for Proj4.js
Modern Spatial Reference System Class. Supports EPSG Codes, PROJ4 String, and Well-Known Text.
Small Function to Check if a String is Probably Well-Known Text

Projection Data Compressed to Fit in the Browser. Includes PROJ4 Strings, ESRI WKT, and OGC WKT
Simple tile utilities for WGS84 / EPSG:4326
Geodesy
Wrapper for all epsg definitions from PostGIS for proj4js in one easy-to-use file
Turbo-charge your Re-projection Functions
Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.