bjornharrtell/jsts

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1562 stars · 238 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

JSTS is a JavaScript library of spatial predicates and functions for processing geometry conforming to the OGC Simple Features Specification. It is a port of the Java JTS Topology Suite, supporting WKT, GeoJSON, and OpenLayers I/O, and works in both browsers and Node.js.

Use cases

• compute intersection, union, and difference of geometries in the browser
• buffer polygons for web mapping applications
• parse WKT and GeoJSON geometry strings in Node.js
• run spatial predicates like intersects and contains on geometries
• convert geometries between OpenLayers and JTS formats
• build geometry analysis into a web mapping app

When to choose

• you need OGC Simple Features geometry operations in JavaScript
• you are building a web mapping app with OpenLayers and need topology functions
• you want a free-standing geometry library in Node.js or the browser
• you need a JavaScript equivalent of Java's JTS API

When to avoid

• you need full GIS raster or coordinate reprojection functionality
• you work in Java or Python where the original JTS or Shapely are more mature
• you need tile rendering or slippy-map features rather than geometry processing

Facets

library · maturity stable

geospatial parser math web-development browser cross-platform geometry topology simple-features wkt geo openlayers jts-port spatial-analysis geospatial maps algorithms nodejs javascript

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