FlatGeobuf In-Browser Streaming Viewer
Experience the fastest binary spatial format. Inspect FlatGeobuf files with client-side spatial indexing and instant WebGL rendering.
Launch GeoEditor for FlatGeobuf
Instant hardware-accelerated 3D viewer. No installation or account required.
Why Engineers Choose GeoEditor for FlatGeobuf
Hilbert R-Tree Spatial Indexing
Inspect packed R-tree spatial indexes that enable random range queries without reading the whole file.
Zero-Copy Decoding
FlatBuffers architecture allows direct memory access from binary byte arrays to WebGL buffers with zero serialization overhead.
Instant Coordinate Projection
Automatic reprojection of FlatGeobuf features directly onto high-resolution satellite and vector basemaps.
Interactive Feature Filtering
Filter features by viewport bounding box and attribute conditions in real time.
Technical Capabilities & Specs
| Specification | FlatGeobuf Binary Specification |
|---|---|
| Index Structure | Packed Hilbert R-Tree |
| Memory Footprint | Zero-copy FlatBuffers memory mapping |
| Rendering Stack | MapLibre GL JS + flatgeobuf-geojson parser |
How to Open & Inspect FlatGeobuf in 3 Steps
Drop Your .fgb File
Select your FlatGeobuf file to begin instant client-side reading.
View Spatial Range & Attributes
Inspect the bounding boxes, feature counts, and column schemas.
Export to Alternative Formats
Convert to GeoJSON or Shapefile for legacy tool consumption.
Frequently Asked Questions About FlatGeobuf
Why is FlatGeobuf faster than GeoJSON?+
FlatGeobuf is a binary format that avoids text parsing. It can be read directly into memory buffers without creating thousands of intermediate JavaScript objects.
Can I open remote HTTP FlatGeobuf files?+
Yes. GeoEditor supports HTTP range requests, downloading only the exact bytes needed for your current map viewport.
Is my data secure?+
Yes, local files remain strictly inside your browser environment.
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