GeoJSON Viewer Online
Open and view GeoJSON files online in seconds. Drag and drop a .geojson or .json file to inspect points, lines, polygons, attributes, and map projection in your browser.
- 01Render points, lines, and polygons on an interactive map in seconds.
- 02Click any feature to inspect its properties, geometry type, and coordinates.
- 03Validate GeoJSON structure and spot geometry issues before they ship.
- 04Free online viewer — no signup, no installation, no upload.
GeoJSON Viewer Tool
Drop a .geojson or .json file into the workspace below. Parsing and map rendering run entirely in your browser — your spatial data is never uploaded to a server.
Why professionals choose this GeoJSON viewer
Private, browser-based parsing
Process GeoJSON locally in your browser so sensitive spatial data never leaves your device.
Instant geographic insights
Visualize FeatureCollection, Feature, and Geometry objects with styling optimized for clarity and quick QA.
Developer-friendly workflow
Validate coordinates and properties before shipping to production maps or spatial databases.
What is GeoJSON?
GeoJSON is a lightweight format for encoding geographic features using JSON. It is ideal for web mapping because it is both human readable and easy for applications to parse.
Because GeoJSON follows common web standards, it integrates smoothly with libraries like Leaflet, Mapbox GL JS, deck.gl, and kepler.gl.
{
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [139.7454, 35.6586]
},
"properties": { "name": "Tokyo Tower" }
}- FeatureCollection
- A container for multiple features, often used to represent a layer or dataset.
- Feature
- Pairs a geometry with descriptive properties, such as names, IDs, or metadata.
- Geometry types
- Points, LineStrings, Polygons, and their multi-part versions capture coordinates for locations, routes, and areas.
How to use the GeoJSON viewer
- 01
Load GeoJSON data
Drag and drop a .geojson or .json file, or click the upload area to select one from your computer.
- 02
Inspect the map and attributes
Pan and zoom to explore features. Click on a feature to review its properties and ensure attributes render correctly.
- 03
Validate and export
Confirm geometry accuracy, then download the file or copy the JSON for your mapping workflow.
Make the most of your GeoJSON files
Prepare clean coordinates
Ensure your longitude and latitude values are in the correct order and use the WGS84 reference system for web maps.
Simplify complex shapes
Large polygons can slow down client-side rendering. Simplify geometries before sharing interactive maps.
Document feature properties
Consistent property names and metadata improve collaboration between GIS specialists, analysts, and developers.
GeoJSON viewer FAQs
Q01How can I view a GeoJSON file?
Traditionally, you would need to install desktop GIS software like QGIS or use command-line tools to view GeoJSON files. However, our GeoJSON Viewer offers a much simpler solution—just open this page and drag your file directly into the browser. You can view, inspect, and validate your GeoJSON data instantly online with no login required, no installation needed, and complete privacy since everything runs locally in your browser.
Q02What files does the viewer support?
You can open standard GeoJSON FeatureCollection, single Feature files, and Geometry objects saved as .geojson or .json.
Q03Is my data sent to a server?
No. All parsing and rendering happen locally in your browser, so your spatial data stays private.
Q04Can I use the viewer for validation?
Yes. The map instantly surfaces geometry issues, invalid coordinates, or missing properties so you can fix them before deployment.
More Data Viewer & Editor Tools
Go Beyond Viewing Your Geo Data
When the map checks out, analyze the attributes behind it: Graphic Walker and PyGWalker give you drag-and-drop charts, dashboards, and repeatable analysis workflows for the data inside your GeoJSON properties.
Need an easy chart builder? Try our Chart Maker.