# kungfoo/geohash-java

Implementation of GeoHashes in java. We try to be/stay compliant to the spec, as far as possible.

Repository: https://github.com/kungfoo/geohash-java
Canonical: https://ross.abutalabs.com/products/geohash-java
Language: Java
License: NOASSERTION
License Family: other
Last push: 2022-07-03T19:57:52+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 6456, "days_push": 1522, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1012, forks 312 (observed 2026-08-28T04:03:13.451777+00:00)

## What it is
A pure Java library implementing GeoHash encoding and decoding, compatible with the geohash.org reference implementation at character precision and supporting full 64-bit long precision. It includes bounding box utilities, iterators, and support for boxes crossing the 180th meridian.

## Use cases
- encode latitude and longitude as geohash strings in java
- find nearby locations using geohash prefixes
- query points inside a bounding box with geohashes
- decode geohash strings back to coordinates
- index geographic points in a database by geohash

## When to choose
- you need a spec-compliant geohash implementation on the JVM
- you need high-precision 64-bit geohash encoding
- you need bounding box queries including antimeridian-crossing regions

## When to avoid
- you need geospatial features beyond geohashes like full spatial indexes or geometry operations
- you need a library with active development and recent releases
- you are not on the JVM

## Facets
- artifact type: library
- maturity: maintenance
- function: geospatial, parser
- domain: developer-tools
- platform: jvm
- tags: geohash, spatial-indexing, bounding-box, location-encoding, geospatial, algorithms

## Member repositories
- kungfoo/geohash-java (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:13.451777+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:11:45.998837+00:00, confidence not recorded.
  - readme: https://github.com/kungfoo/geohash-java (fetched 2026-08-28T04:03:13.451777+00:00, sha 29986c582cbd)
- Data as of 2026-08-30T08:39:29.467469+00:00.