Convert TAB to GEOJSON Online - Free & Fast

What is TAB?

MapInfo TAB is the native read/write format for MapInfo Professional, storing vector layers with geometry, attributes, styling rules, and projection information in a set of files that together form a complete map layer.

What is GEOJSON?

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

When Should You Use TAB vs GEOJSON?

TAB vs GEOJSON: Key Differences

• •TAB and GEOJSON diverge on compression: lossless compression for the source, lossless compression for the target.
• •Neither format changes compression philosophy — both are lossless compression — so any size differences are due to encoding efficiency, not a shift in quality approach.
• •How transparency is handled: GEOJSON supports transparency, so alpha information is preserved during conversion.
• •Storage footprint: 10KB to 2GB depending on layer complexity for TAB vs 1KB to 100MB for large datasets for GEOJSON.
• •Primary audience: TAB is built for mapinfo gis projects, cadastral mapping, desktop spatial analysis scenarios, while GEOJSON focuses on web mapping, geospatial apis, data interchange — pick the format that matches your output requirement.

Advantages of TAB

• ✓At its core, TAB relies on lossless encoding — a design choice that makes it perfect for MapInfo GIS projects, cadastral mapping, desktop spatial analysis.
• ✓You won't run into compatibility issues with TAB — it's a universal standard across platforms.
• ✓File size management with TAB: larger files guaranteed to match the original exactly.
• ✓Every major application in the MapInfo GIS projects, cadastral mapping, desktop spatial analysis space supports TAB natively.

Advantages of GEOJSON

• ✓At its core, GEOJSON relies on lossless encoding — a design choice that makes it perfect for Web mapping, geospatial APIs, data interchange.
• ✓You won't run into compatibility issues with GEOJSON — it's a universal standard across platforms.
• ✓File size management with GEOJSON: larger files guaranteed to match the original exactly.
• ✓Every major application in the Web mapping, geospatial APIs, data interchange space supports GEOJSON natively.

Common Use Cases for TAB to GEOJSON Conversion

Industry Applications

Best Practices for TAB to GEOJSON Conversion

• →When converting TAB to GEOJSON: confirm the coordinate reference system (CRS / projection) is preserved or explicitly reprojected
• →Keep attribute tables and feature metadata intact — GEOJSON should retain all fields from TAB
• →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 TAB to GEOJSON Conversion

• !GEOJSON features land in the wrong place after TAB to GEOJSON → verify the CRS/projection; mismatched coordinate systems shift geometry
• !Attribute columns missing in GEOJSON → some GIS formats have field name length or type limits; rename or cast columns first
• !TAB to GEOJSON drops the z/elevation dimension → pick a target format that supports 3D geometry
• !GEOJSON 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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