Get distance between two points in kilometers or nautical miles

provide geographic information about mail senders.

A lightweight, blazing-fast TypeScript library for calculating distances (Haversine) and geospatial math with support for kilometers and miles.

Dimensional analysis and unit conversions

TypeScript definitions for plotly.js

Finds the nearest point on a line to a given point

Simple zipcode/city distance calculator and all information you need about cities and zipcodes, including coordinates, states etc.

A common JS module for calculating and converting Earth distances using correct great-circle distance formula.

Color JSON in the console with no dependencies

Creates an interpolated grid of points using the Inverse Distance Weighting method.

Generate contour lines from a grid of data.

turf rhumb-circle module

Moves a shape or location in a specific direction.

Creates a circular arc, of a circle of the given radius and center point, between two bearings.

The Geolocation API provides simple methods for getting and tracking the current position of the device using GPS, along with altitude, heading, and speed information if available.

turf line-offset module

Returns the shortest path from start to end without colliding with any Feature in obstacles.

Takes a matrix array of numbers and returns a grid of GeoJSON points with correspondent property value

Takes any LineString or Polygon and returns the overlapping lines between both features.

Creates a circular sector of a circle.