Proj.org
PROJ — PROJ 9.6.0 documentation
PROJ offers open-source tools and documentation for transforming geospatial coordinates between different reference systems, supporting GIS and mapping work.
Transform geospatial coordinates easily
PROJ is a comprehensive platform designed to help you transform geospatial coordinates between different reference systems. Whether you're working with maps, GIS software, or geodetic data, PROJ provides the tools and guidance you need for precise cartographic projections and geodetic transformations.
The website features extensive documentation, tutorials, and resources that walk you through installation, usage, and advanced features. It's open source and widely used in both academic and professional geospatial projects, making it a trusted choice for developers and GIS specialists alike.
If you're looking for reliable, well-supported software to handle coordinate transformations or to better understand geospatial reference systems, PROJ's site has everything you need, from technical specifications to a helpful community.
Alternatives to Proj.org
Discover websites similar to Proj.org. Section 1 prioritizes sites with matching domain extensions and/or languages. Section 2 offers worldwide alternatives.
Top Proj.org Alternatives (Prioritized Matches)
GeoNode helps you create, manage, and share geospatial data on the web, making it easy to build and maintain geospatial information systems (GIS).
Browse and find coordinate reference systems (CRS) for mapping and GIS projects. Access codes, data, and tools for accurate spatial referencing.
MapIt lets you match UK postcodes or map points to local government and administrative areas, making it easy to connect locations with boundaries.
Mapnik is an open-source GIS toolkit for high-quality map rendering and geospatial data processing using C++, Python, or Node.js.
deegree is open source software for managing, visualizing, and sharing geospatial data using open standards for spatial data infrastructures.
OneGeology connects global geological surveys, offering access to worldwide geoscience data, maps, and resources for professionals and enthusiasts.
GRASS GIS is a free, open-source platform for advanced geospatial analysis, modeling, and spatial data management for mapping and scientific research.
OpenLayers is a powerful open-source library for building interactive maps and geospatial applications on the web, with plenty of examples and docs.
OSGeo is a global foundation supporting open source geospatial projects, connecting users with GIS tools, resources, and a collaborative community.
Explore, create, and share digital maps and information about ancient places worldwide with this open, community-driven historical GIS platform.
H3 offers a hexagonal grid system for mapping and analyzing geographic data, with open-source tools and APIs for developers and data scientists.
GPlates offers interactive desktop tools for visualizing plate tectonics, helping users explore and analyze the movement of Earth's plates over time.
QField is a mobile-friendly app for efficient geospatial data collection, letting you gather and manage mapping and surveying info right in the field.
Explore and analyze environmental data with interactive maps and tools to support research, learning, and sustainable stewardship of natural resources.
GeoPackage is the official site for an open, portable format to store and share geospatial data, supported by the Open Geospatial Consortium.
52°North develops innovative geo-information technologies and tools, supporting research and collaboration in spatial data and GIS solutions.
QGIS offers free tools for creating, visualizing, and analyzing geographic data, making spatial decision-making accessible to everyone.
World Historical Gazetteer lets you explore and connect records about historical places across time and languages for research and learning.
Explore the official CakePHP 5 documentation to learn how to build web applications with this PHP framework, including guides, API details, and resources.
Cocoadocs.org provides documentation and resources for Cocoa and Swift development libraries. Easy access to code references and developer guides.
A technical documentation site explaining web platform features browsers need to support for better compatibility with the modern web.
Explore tidyr, a tool for reshaping and tidying messy data in R. Learn how to organize, pivot, and clean datasets for easier analysis and visualization.
Find detailed documentation, guides, and community knowledge for Samba’s open-source file and print services on this collaborative wiki platform.
Find official guides and resources for using and publishing to The Central Repository, the main source for open source software components and libraries.
OpenGL.org is the official resource for OpenGL, offering graphics development standards, documentation, news, and community updates for developers.
A collaborative wiki for QEMU, offering guides, documentation, and resources on this open source machine emulator and virtualizer.
Discover documentation, code, and tools for Wikimedia's open source projects, including the editing engine behind Wikipedia and related components.
smartmontools offers tools, downloads, and documentation to monitor and check the health of your computer's hard drives and SSDs.
Explore documentation for PostgREST, a tool that instantly turns your PostgreSQL database into a RESTful API. Learn setup, features, and best practices.
Browse up-to-date drafts of CSS standards from the official CSS Working Group, providing technical specs and documentation for web developers.
Worldwide Proj.org Alternatives
SAGA GIS is a free, open-source platform for geoscientific analysis, mapping, and visualization, designed for researchers and GIS professionals.
Discover GIS concepts, technologies, and communities. Learn how geographic information systems help map, analyze, and manage spatial data.
GeoJSON.org explains and documents the GeoJSON format, helping you understand and use geographic data structures for mapping and GIS projects.
Create interactive maps and custom web apps with ArcGIS Experience Builder, making it easy to share geographic data and insights visually online.
overpass turbo lets you run custom map data queries on OpenStreetMap and visualize results directly in your browser. No software install needed.
Explore S2 Geometry, a GIS platform for mapping and spatial data using a 3D sphere model—ideal for developers and geospatial projects.
Find guides, documentation, and tools to help you get the most out of ArcGIS with this resource hub for GIS users and developers.
GeoServer lets you publish, share, and manage geospatial data online with open standards. Easily connect and serve spatial data from various sources.
Explore interactive maps and data tools from the USGS to view geographic, energy, and environmental information for research or planning needs.
Edit and manage OpenStreetMap data with JOSM, a tool for loading GPS tracks, background imagery, and making detailed map edits from your computer.