Find3 – An indoor positioning system for smartphones and laptops
High-precision indoor positioning framework, version 3. - schollz/find3
Find3 – An indoor positioning system for smartphones and laptops launched on March 25, 2018 with 265 votes, #84 of 2,954 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 8 years on.
In plain words
Find3 is an open-source indoor positioning system that works with smartphones and laptops. It uses machine learning and signal strength data to determine device location inside buildings where GPS doesn't work. The project is designed for developers and users who need reliable indoor navigation without relying on dedicated hardware infrastructure. It's available as open-source software on GitHub.
written from the facts on this page · September 2026
Does a similar job
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FIND – an indoor positioning system for smartphones and laptops2016 · github.com · ▲183High-precision indoor positioning framework for most wifi-enabled devices. - schollz/find
Internal positioning of all smartphones using Raspberry Pis2016 · github.com · ▲13Track the location of every Wi-Fi device (:iphone:) in your house using Raspberry Pis and FIND - schollz/find-lf
- ILIndoor Location you can try yourself2012 · play.google.com · ▲52
4m-accuracy Indoor Location with Beacons2015 · blog.estimote.com · ▲71Super simple and accurate indoor positioning with the updated Estimote Indoor Location SDK Employing beacon technology to deliver indoor location solutions requires a deep understanding of the physics...
- FPFrom Photos to Positions: Prototyping VLM-Based Indoor Maps2025 · arjo129.github.io · ▲55
Just a fun hack I did while bored over the weekend. My wife was busy shopping, it got me thinking that can VLMs solve the indoor location problem in a mall? Can I just show a VLM a map and an image and have it doa good enough job locating me? I hacked this P.O.C and it seems to work.
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