About Visible Explorer

What is this?

Visible Explorer is a private, in-browser tool for people who use the Visible app to track long COVID, ME/CFS, or related conditions. It lets you upload your own data export and see analyses adapted from blog posts by Dr. Mowinckel — without your data ever leaving your computer.

How is it private?

Every analysis runs locally inside your browser using WebR, a build of R that runs as WebAssembly. When you select a CSV file, it’s read into memory in your browser tab. There is no upload to a server, no cookie, no tracking. Close the tab and the data is gone.

You can verify this by opening your browser’s developer tools (Network tab) and watching: the only requests are for static page assets and the WebR runtime files. None of them carry your CSV.

How do I get my data out of Visible?

In the Visible app: Settings → Export Data. You’ll receive a visible.csv file. That’s the file to upload here.

Who made this

Hi — I’m Dr. Athanasia Mo Mowinckel. I’m a staff scientist at the Center for Lifespan Changes in Brain and Cognition (LCBC) at the University of Oslo, where I lead data management for our research group and the Lifebrain EU project. My PhD is in cognitive neuroscience, and most of my day-to-day is wrangling longitudinal brain-and-behaviour data — usually in R, and developing Research Software.

The analyses on this page started as blog posts where I was working through my own Visible export, trying to make sense of what was happening. This site is the same code, repackaged so you can run it on yours, on your machine, without any of it touching mine.

Credits

• Browser-side R via r-wasm/webr and the r-wasm/quarto-live Quarto extension.
• Visible is a trademark of Visible Health Inc.; this site is independent and not affiliated.

Disclaimer

This is not a medical tool. The analyses are exploratory and personal. Decisions about your health should be made with your clinician.