Convert GEOJSON to BNA Online - Free & Fast

What is GEOJSON?

GeoJSON is the standard format for web-based geographic data, encoding points, lines, polygons, and feature collections in JavaScript Object Notation.

What is BNA?

Atlas Boundaries (BNA) is a simple ASCII coordinate format for storing polygon boundary data, originally developed by Atlas GIS for representing area features like postal codes, sales territories, and administrative regions as coordinate lists.

When Should You Use GEOJSON vs BNA?

GEOJSON vs BNA: Key Differences

• •GEOJSON uses lossless compression while BNA uses lossy compression — this is the fundamental technical difference between the two formats.
• •Moving from GEOJSON (lossy) to BNA (lossy) means the output file will be significantly smaller — but at the cost of some visual fidelity.
• •How transparency is handled: BNA does not support alpha channels — transparent areas in the source will become opaque.
• •GEOJSON files are typically 1KB to 100MB for large datasets while BNA files range 1KB to 50MB depending on boundary complexity
• •GEOJSON is optimized for web mapping, geospatial apis, data interchange while BNA is designed for atlas gis boundary exchange, regional mapping, legacy spatial data conversion — choose based on your specific workflow needs

Advantages of GEOJSON

• ✓GEOJSON uses lossless compression tailored for Web mapping, geospatial APIs, data interchange.
• ✓GEOJSON is supported natively on virtually every device, browser, and operating system.
• ✓GEOJSON files are bit-for-bit perfect, preserving every pixel and sample for professional work.
• ✓GEOJSON integrates seamlessly with all major creative tools and workflows.

Advantages of BNA

• ✓BNA uses lossy compression tailored for Atlas GIS boundary exchange, regional mapping, legacy spatial data conversion.
• ✓BNA is supported natively on virtually every device, browser, and operating system.
• ✓BNA files are compact and quick to transfer, even over slow connections.
• ✓BNA integrates seamlessly with all major creative tools and workflows.

Common Use Cases for GEOJSON to BNA Conversion

Industry Applications

Best Practices for GEOJSON to BNA Conversion

• →When converting GEOJSON to BNA: confirm the coordinate reference system (CRS / projection) is preserved or explicitly reprojected
• →Keep attribute tables and feature metadata intact — BNA should retain all fields from GEOJSON
• →Check geometry types (point, line, polygon) map cleanly between the two formats
• →Verify that z/elevation values and topology survive the conversion when working with terrain data
• →Always keep a backup of your original files before converting
• →Choose the appropriate quality settings for your specific use case

Troubleshooting GEOJSON to BNA Conversion

• !BNA features land in the wrong place after GEOJSON to BNA → verify the CRS/projection; mismatched coordinate systems shift geometry
• !Attribute columns missing in BNA → some GIS formats have field name length or type limits; rename or cast columns first
• !GEOJSON to BNA drops the z/elevation dimension → pick a target format that supports 3D geometry
• !BNA file won't open in your GIS app → confirm the format version and any required sidecar files (e.g. .prj, .shx) are present

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