Make sense of data from around the world.
Simba Systems is a network of public-data websites and browser simulations, built by one person, following one set of rules: public data only, every source attributed, every methodology published.
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Latest from the blog
Why Simba Systems exists
Public data is scattered across government portals, PDFs, and paywalls. Simba Systems is a network of small sites that each make one slice of it usable.
How we measure growth
The growth chart combines Cloudflare zone analytics and Cloudflare Web Analytics across every site in the network. Here is exactly what is counted and what is not.
How to work with us
Three ways in: advertise across the network, bring a dataset or a site to cross-link, or write for the blog. Here is what each actually involves.
Latest news
2026-09-13: 3 item s about public data and data journalism.
Advertising
Reserved-height slots across every site in the network. Combined reach, per-site audience, and a media kit on Advertise.
Partners
Bring a dataset, cross-link a related site, or write for the blog. See Partners.