About GIS Tools
A comprehensive suite of browser-based GIS tools for geospatial professionals and enthusiasts.
What is GIS Tools?
GIS Tools is a free collection of browser-based geospatial tools. Whether you need to convert file formats, analyze spatial data, or create beautiful maps, we've got you covered — all without uploading your data to any server.
Key Features
- 100% Client-Side Processing: All data processing happens directly in your browser using WebAssembly and modern JavaScript libraries. Your data never leaves your device.
- No Account Required: Just open the tool and start working. No sign-ups, no subscriptions, no tracking.
- Professional-Grade Tools: From simple coordinate conversions to complex geoprocessing operations, our tools match the functionality of desktop GIS software.
- WebGL-Powered Maps: Smooth, fast map rendering using MapLibre GL JS for an excellent visualization experience.
About the Creator
Stephen Taylor
Stephen Taylor is a Toronto-based technologist and digital pioneer with over 20 years of experience building innovative applications. A political strategist who served as Federal Director of the National Citizens Coalition and Senior Political Advisor to the Leader of the Opposition in Canada's Parliament, Stephen has long been at the forefront of applying technology to solve complex problems.
Stephen is known for his political mapping project, which has made detailed electoral data accessible to Canadians. The project includes interactive maps of federal and provincial elections dating back to 2000, broken down to the polling division level with integrated building footprints. His goal is to help voters engage more deeply with Canada's democratic process by making electoral information easy to explore and understand.
GIS Tools is an extension of this mission — providing free, browser-based geospatial tools that make GIS analysis available to everyone, regardless of technical background or budget.
Open Source Acknowledgments
GIS Tools is built with the following open source libraries. We're grateful to their authors and contributors:
MapLibre GL JS (BSD-3-Clause)
WebGL map rendering
Turf.js (MIT)
Geospatial analysis
Proj4js (MIT)
Coordinate transformations
GeoTIFF.js (MIT)
Raster file processing
Shapefile (BSD-2-Clause)
Shapefile parsing by Mike Bostock
TopoJSON (BSD-3-Clause)
Topology encoding by Mike Bostock
toGeoJSON (BSD-2-Clause)
KML/GPX conversion by Tom MacWright
FlatGeobuf (BSD-2-Clause)
FlatGeobuf format support
PMTiles (BSD-3-Clause)
Cloud-native map tiles
PapaParse (MIT)
CSV parsing
SheetJS (Apache-2.0)
Spreadsheet processing
jsPDF (MIT)
PDF generation
React (MIT)
UI framework by Meta
Tailwind CSS (MIT)
Styling framework
Feedback
We're always looking to improve. If you have suggestions, find bugs, or want to request new features, please get in touch.
Disclaimer
GIS Tools is provided "as is" without warranty of any kind. These tools are intended for general informational and educational purposes only. Do not use these tools for any application involving personal safety, emergency response, navigation, or any situation where inaccurate results could cause harm. We make no guarantees regarding the accuracy, reliability, or completeness of any calculations, conversions, or analyses performed by these tools. Users are solely responsible for verifying results and determining fitness for their intended use.