GeoJSON Simplifier
Simplify GeoJSON lines and polygons with a chosen tolerance using Turf while preserving feature properties.
Input
Large tolerances can change shape and topology. The original input is never overwritten.
Review these warnings
GeoJSON
Map preview
Understanding GeoJSON Simplifier
Validity, topology and data quality
Simplify GeoJSON lines and polygons with a chosen tolerance using Turf while preserving feature properties.
GeoJSON Simplifier checks or changes structural properties of spatial data. Geometric validity concerns rules such as ring closure and self-intersection; factual accuracy requires separate real-world verification.
How to review a repair
Large tolerances can change shape and topology. The original input is never overwritten.
After GeoJSON Simplifier, compare changed feature counts, coordinates and shapes with the source. Automated cleaning can resolve a technical defect while introducing an unwanted geographic change.