GeoJSON Validator

Validate GeoJSON files for syntax errors, structural issues, and RFC 7946 compliance with detailed error reporting.

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11,216+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how GeoJSON Validator processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

This GeoJSON Validator tool allows you to validate GeoJSON data by either pasting it directly into the text area or uploading a .geojson or .json file. The tool performs comprehensive validation including: syntax checking, geometry type validation, coordinate validation, property validation, and RFC 7946 standard compliance. It provides detailed error messages with line numbers (when available) and suggestions for fixing issues. The validator supports all GeoJSON geometry types (Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, GeometryCollection) and Feature/FeatureCollection objects. Results are displayed in a clean, organized format with color-coded error levels and actionable feedback.

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How to Use

Enter GeoJSON data in the text area OR click 'Upload GeoJSON File' to select a file
Choose validation options (strict mode, geometry validation, etc.)
Click 'Validate GeoJSON' button
View detailed validation results including errors, warnings, and success messages
Use the 'Copy Valid GeoJSON' button to copy corrected data if available

Frequently Asked Questions

Find Quick Answers

What is GeoJSON?

GeoJSON is an open standard format for encoding geographic data structures using JSON. It's commonly used in web mapping applications and GIS software.

What validation does this tool perform?

The tool validates: JSON syntax, required GeoJSON properties, valid geometry types, coordinate arrays, bounding boxes, and compliance with RFC 7946 standards. It checks for common issues like self-intersecting polygons and invalid coordinate ranges.

Can I validate large GeoJSON files?

Yes, but very large files may take longer to process. The tool handles files up to 10MB efficiently in the browser. For larger files, consider splitting them or using server-side validation tools.

Does the tool fix GeoJSON errors?

The tool identifies errors and provides specific suggestions for fixing them. For some common issues (like missing 'type' property), it can generate corrected GeoJSON that you can copy and use.

What file formats are supported?

You can paste GeoJSON directly or upload .geojson or .json files. The tool also accepts GeoJSON embedded in JavaScript files or other text formats containing valid GeoJSON.

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