JamesLMilner/terra-draw

Health v2 · maintenance only

Adoption not part of the score

1093 stars · 115 forks observed · 2026-09-01

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

Terra Draw is a TypeScript library for drawing shapes and geometries on web maps, with built-in adapters for Leaflet, OpenLayers, MapLibre GL JS, Google Maps, Mapbox GL JS, and ArcGIS JS SDK. It centralizes drawing logic into reusable modes (point, line, polygon, geodesic, etc.) that work consistently across mapping libraries.

Use cases

• draw polygons on a map to define areas of interest
• let users sketch routes or lines on a Leaflet map
• add drawing tools to a MapLibre GL JS application
• capture GeoJSON geometry input from users on Google Maps
• build a map annotation or measurement feature
• edit existing GeoJSON features on a web map
• draw geodesic lines that account for earth curvature

When to choose

• you need consistent drawing functionality across multiple mapping libraries
• you want out-of-the-box drawing modes without building from scratch
• your app uses MapLibre, Mapbox, Leaflet, OpenLayers, Google Maps, or ArcGIS JS
• you need GeoJSON output from user-drawn geometries

When to avoid

• you use a mapping library without a supported adapter
• you need advanced CAD-style editing or 3D drawing
• you only need static map rendering with no user interaction

Facets

library · maturity active

ui-components graphics geospatial web-development frontend browser map-drawing geo leaflet mapbox-gl maplibre google-maps openlayers arcgis polygon-drawing geodesic maps geospatial javascript typescript

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