# schollz/find3

High-precision indoor positioning framework, version 3.

Repository: https://github.com/schollz/find3
Canonical: https://ross.abutalabs.com/products/find3
Homepage: https://www.internalpositioning.com/doc
Language: Go
License: MIT
License Family: permissive
Topics: motion, gps-tracking, indoor-positioning, wifi, bluetooth, location-services
Last push: 2022-12-30T00:57:30+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3121, "days_push": 1343, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4795, forks 372 (observed 2026-08-28T04:09:00.091066+00:00)

## What it is
FIND3 is a self-hosted framework for high-precision indoor positioning ('indoor GPS') that uses WiFi, Bluetooth, and magnetic field fingerprints from smartphones, laptops, or ESP devices. It includes a data storage server, a machine learning server with multiple classifiers, and companion scanning clients.

## Use cases
- track the location of devices inside a house or office
- build indoor positioning using wifi and bluetooth fingerprints
- self-hosted alternative to indoor GPS
- passively monitor which room a smartphone is in
- gather sensor fingerprints with an android app or esp32

## When to choose
- you need privacy-respecting, self-hosted indoor location tracking
- you want flexible data sources like WiFi, Bluetooth, or magnetic fields
- you want machine-learning-based location classification with an API and MQTT support

## When to avoid
- you need outdoor GPS or large-scale commercial asset tracking
- you need actively maintained software with recent releases
- you want a turnkey product rather than a framework of components

## Facets
- artifact type: framework
- maturity: maintenance
- function: machine-learning, search-engine, http-server, websocket, cli
- domain: iot, developer-tools
- platform: go, windows, self-hosted, cross-platform
- tags: indoor-positioning, wifi-fingerprinting, bluetooth-tracking, indoor-gps, location-services, mqtt, smart-home, automation, real-time, linux, macos, docker, android

## Member repositories
- schollz/find3 (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:00.091066+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 2026-08-29T18:18:40.152527+00:00, confidence not recorded.
  - readme: https://github.com/schollz/find3 (fetched 2026-08-28T04:09:00.091066+00:00, sha 5a921235dbac)
- Data as of 2026-08-30T08:39:29.467469+00:00.