Most chart tools were built for data analysts. viz4 was built for everyone else — students, food truck owners, nursing students at 11pm, parents helping with science projects.
"Data shouldn't require a PhD. It shouldn't require a CSV. It shouldn't require an account. It should just work — in 3 seconds — on your phone."
We looked at every chart tool on the internet — Datawrapper, Flourish, Tableau, Google Charts, Chart.js. Every single one requires a CSV or Excel file. Every single one has a learning curve. Most require an account before you can do anything.
Meanwhile, tens of millions of people had numbers in their notebooks, WhatsApp chats, and Google Keep notes — and just wanted to see what those numbers looked like as a chart. Zero tools served them. That's the gap viz4 was born to fill.
Zero friction is the product. If something takes more than 3 steps, we haven't done our job. If you need to create an account to try something, we've already failed.
Privacy is a feature, not a footnote. Your data is processed in your browser. We don't store your numbers. We don't track what you type. We don't sell data. Full stop.
Mobile is the first screen, not the last. We test every feature on a phone screen before we test it on desktop. If it doesn't work beautifully on mobile, it doesn't ship.