Bounding Box Generator
Generate bounding boxes from coordinates or GeoJSON. Export as GeoJSON Polygon, WKT, CSV, or array format with one-click copy.
Generate Bounding Boxes Instantly
Enter coordinates directly or paste GeoJSON to calculate bounding boxes in multiple output formats.
Dual Input Modes
Enter west, south, east, north coordinates directly, or paste a GeoJSON FeatureCollection/Geometry and the bounding box is extracted automatically from all coordinates.
5 Output Formats
Get your bounding box as a JSON array [W,S,E,N], GeoJSON Polygon, WKT POLYGON, CSV, or URL parameters. Each format includes a one-click copy button.
Browser-side Processing
All bounding box calculations run entirely in your browser. Your GeoJSON data is never uploaded to any server. No account needed.
How to Generate a Bounding Box
Choose Input Mode
Select 'Coordinates' to enter bounds manually, or 'GeoJSON' to extract bounds from a GeoJSON object.
Enter Data
For coordinate mode, enter West, South, East, North values. For GeoJSON mode, paste your GeoJSON text.
View & Copy Results
See the bounding box in 5 formats with center point, dimensions, and approximate area. Copy any format with one click.
Output Formats
JSON Array
Standard [west, south, east, north] array format used by Turf.js, MapLibre, Leaflet, and most GIS libraries.
GeoJSON Polygon
Full GeoJSON Feature with Polygon geometry representing the bounding box. Ready to paste into a GeoJSON editor.
WKT POLYGON
Well-Known Text format compatible with PostGIS, QGIS, and spatial databases. Suitable for SQL queries.
CSV Format
Comma-separated west,south,east,north values for use in spreadsheets or command-line tools.
100% Free
No usage limits, no premium tiers. Professional bounding box generation at zero cost.
Instant Calculation
All processing happens locally in your browser. No server round-trips, no waiting.
Frequently Asked Questions
What is a bounding box?
What GeoJSON types are supported?
How is the area calculated?
What coordinate order is used?
Is my GeoJSON data private?