EPSG Coordinate Reference System Search
Search and browse 8000+ EPSG coordinate reference systems. Find CRS codes, view Proj4 definitions, and convert coordinates instantly.
Explore the EPSG Registry
The most comprehensive online tool for searching and browsing EPSG coordinate reference systems.
Smart Search
Search by EPSG code, CRS name, or geographic region. Exact code matches are prioritized, with fuzzy matching for names and areas. Find any CRS in the 8000+ entry database instantly.
Complete CRS Information
View detailed information for every CRS including type (geographic/projected), area of use, coordinate units, and the full Proj4 definition string — ready to copy into your code.
Seamless Conversion Workflow
Found the CRS you need? Click "Convert with this CRS" to jump directly to the coordinate converter with your selected CRS pre-loaded. No need to search again.
How to Search EPSG Codes
Enter Your Search
Type an EPSG code (e.g., 4326), a CRS name (e.g., WGS 84), or a region name (e.g., Japan) into the search bar.
Filter by Type
Use the filter pills to narrow results to Geographic (lat/lng), Projected (meters), or Other coordinate systems.
View Details
Click any result to expand it and see the full CRS information including type, area of use, units, and Proj4 definition.
Copy or Convert
Copy the Proj4 definition string for use in your code, or click "Convert with this CRS" to start converting coordinates.
Why Use Our EPSG Search
Instant Search
Results appear as you type. No server requests — the entire database is loaded client-side for instant filtering.
Complete Database
Access the full EPSG registry with 8000+ coordinate reference systems from around the world.
Proj4 Definitions
Every CRS includes its Proj4 definition string. One-click copy for use in Proj4js, GDAL, PostGIS, and other tools.
Shareable Links
Search queries are saved in the URL. Share a link to any search result with your team.
100% Free
No usage limits, no account required. Professional EPSG lookup at zero cost.
Privacy First
All searches run in your browser. No data is sent to any server. No tracking, no cookies.