GeoSentinel — in-browser Sentinel-2 change detection (OxiGDAL)

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2 · Dates

Before (A)

After (B)

Search window (± days)

Max cloud cover 20%

3 · Detection

NDVI-drop threshold 0.15

Auto threshold (Otsu)

Min polygon area (ha)

About

GeoSentinel searches the public Earth Search STAC catalog and reads Sentinel-2 Cloud-Optimized GeoTIFFs directly — NDVI, thresholding, polygonization and geodesic areas all run in WebAssembly, in this tab. No server ever learns which place you analyzed.

✓ Pure Rust WASM

✓ Zero backend

✓ HTTP range reads

View on GitHub

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