Mad Location Manager is a library for GPS and Accelerometer data "fusion" with Kalman filter

Easy-to-use and feature-rich geohash library written in C# | Encode & Decode of Geohashes | Converts a polygon into a set of geohashes with arbitrary precision | Allows Geohash Compression

An easy-to-implement library for the GeoHash algorithm

The example of server-side geo clustering using relational database (SQL) and geohash index

Simple and fast php library to convert geohash to latitude/longitude and from latitude/longitude to geohash

An assortment of geolocation related tools, all packaged in one easy to use kit.

A generic library for calculating GeoHash like hashes for arbitrary 2d and 3d coordinates.

Performance oriented Geohash implementation

Yet another implementation of Geohashing