BrainViz

by qurratul.quais · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Read and visualize EEG signals from .txt and .edf files.

Users

−1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#162K

#135K among extensions

Version

1.0.1

updated 13 Aug 2025

Users

monthly, 15 months

Latest, 16 Oct 2026: 16 usersMove the mouse over the chart for any month

Ratings count

monthly, 15 months

Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About BrainViz

BrainViz is a lightweight Chrome extension that helps researchers, students, and clinicians visualize Electroencephalogram (EEG) data from .txt and .edf files directly in the browser. It lets you instantly view EEG files from PhysioNet and other sources right in your browser, without extra tools or software. Offline EEG files can also be viewed after loading them manually into the extension. Features: • Supports .edf and .txt EEG files • Auto-intercepts EEG downloads from supported sites like PhysioNet • Upload EEG files manually through the popup panel • Channel-wise EEG plotting (stacked & compact views) • Apply signal filters: bandpass, highpass, lowpass, notch (50/60 Hz) • Signal navigation with a draggable time slider • View Power Spectral Density (PSD) plots for frequency insights • Band topographic maps to visualize frequency bands Perfect for: • Neuroscience students • BCI/EEG researchers • Healthcare & biomedical developers