Density
A modern infrastructure for anonymously counting people
Density launched on July 27, 2016 with 381 votes, #29 of 3,671 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 10 years on.
In plain words
Density is an infrastructure system that counts people anonymously using hardware and API tools. It's designed for organizations that need to understand how spaces are being used without tracking individuals. The system combines physical sensors with analytics software to provide real-time occupancy data. It works for offices, retail locations, and other venues seeking to optimize space utilization and operational decisions based on foot traffic patterns.
written from the facts on this page · September 2026
From the sources
Density shows you how people use your space and helps you get more out of every square foot.
Does a similar job
all alternatives →
Density – Anonymous People Counter and API2015 · density.io · ▲258Density shows you how people use your space and helps you get more out of every square foot.


Howmanypeoplearearound – Use wifi to calculate number of people around2017 · github.com · ▲199Count the number of people around you :family_man_man_boy: by monitoring wifi signals :satellite: - GitHub - schollz/howmanypeoplearearound: Count the number of people around you by monitoring wifi signals :satellite:

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