Convert TOPOJSON to E00 Online - Free & Fast

What is TOPOJSON?

TopoJSON is an extension of GeoJSON that encodes topology, sharing boundary arcs between adjacent features to dramatically reduce file size for map data.

What is E00?

ArcInfo Exchange (E00) is a proprietary interchange format developed by ESRI for exporting and importing Arc/Info coverages, encoding vector topology, attributes, and raster data in an ASCII text file for data migration between GIS systems.

When Should You Use TOPOJSON vs E00?

TOPOJSON vs E00: Key Differences

• •The core technical difference: TOPOJSON relies on lossy compression whereas E00 uses lossy compression.
• •Since both TOPOJSON and E00 use lossy compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
• •How transparency is handled: E00 does not support alpha channels — transparent areas in the source will become opaque.
• •File sizes: TOPOJSON files typically range 80% smaller than equivalent GeoJSON for administrative boundaries and E00 files 100KB to several GB depending on coverage complexity.
• •Use case fit: TOPOJSON targets web choropleth maps, data visualization, boundary simplification and E00 targets legacy arcinfo data migration, gis archival data recovery — your choice depends on which workflow stage you are serving.

Advantages of TOPOJSON

• ✓TOPOJSON uses lossy compression tailored for Web choropleth maps, data visualization, boundary simplification.
• ✓TOPOJSON is supported natively on virtually every device, browser, and operating system.
• ✓TOPOJSON files are compact and quick to transfer, even over slow connections.
• ✓TOPOJSON integrates seamlessly with all major creative tools and workflows.

Advantages of E00

• ✓At its core, E00 relies on lossy encoding — a design choice that makes it perfect for Legacy ArcInfo data migration, GIS archival data recovery.
• ✓You won't run into compatibility issues with E00 — it's a universal standard across platforms.
• ✓File size management with E00: aggressive compression with minimal visible quality loss.
• ✓Every major application in the Legacy ArcInfo data migration, GIS archival data recovery space supports E00 natively.

Common Use Cases for TOPOJSON to E00 Conversion

Industry Applications

Best Practices for TOPOJSON to E00 Conversion

• →When converting TOPOJSON to E00: confirm the coordinate reference system (CRS / projection) is preserved or explicitly reprojected
• →Keep attribute tables and feature metadata intact — E00 should retain all fields from TOPOJSON
• →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 TOPOJSON to E00 Conversion

• !E00 features land in the wrong place after TOPOJSON to E00 → verify the CRS/projection; mismatched coordinate systems shift geometry
• !Attribute columns missing in E00 → some GIS formats have field name length or type limits; rename or cast columns first
• !TOPOJSON to E00 drops the z/elevation dimension → pick a target format that supports 3D geometry
• !E00 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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