Online EEG analysis for EDF files — no install required.
BandForm is a browser-based EEG EDF analyzer. Upload an EDF recording and get PSD, band power, spectrograms, and 50+ spectral features across every channel — exportable to CSV. For educational and research use only.
Three steps, in your browser.
No install. Upload an EDF, BandForm computes spectral features across every channel, and you get a CSV you can drop into your existing pipeline.
- Step 01
Upload an EDF
Drop in an EDF or EDF+ recording. BandForm parses the header, per-channel sample rates, and calibration.
How EDF files are structured → - Step 02
Compute PSD & band power
Welch PSD, absolute and relative band power per channel, spectrograms, channel × band heatmap, and 50+ spectral features.
What band power actually measures → - Step 03
Export CSV
Every feature and the raw PSD export as CSV, ready for R, Python, or MATLAB downstream.
The spectral features BandForm emits →
Built for precision.
Multi-Channel Live Viewer
Smooth scrolling across every channel in the EDF — whatever the montage — with scroll-to-zoom, live window analytics, and auto-flagged artifact stretches.
This Moment
Channel × Band Heatmap
Relative band power for every channel in the montage.
Spectral / PSD
Instant Welch PSD with interactive density plotting for every active channel and band.
Artifact Detection
Automatically flags stretches where amplitude spikes far beyond a channel's typical range — a visual quality flag, not a diagnosis.
EDF / EDF+ Compatibility
Reads EDF and EDF+ files directly — no conversion, no install.
For Educators & Students
Explore real EDF recordings from your browser — scroll the waveform, inspect band power at any moment, and see how the spatial distribution changes across the scalp. No MATLAB, no installs.
- Interactive EDF viewer
- Live window vs. whole-recording stats
- Exportable PDF reports
For Researchers
Extract band power, spectral entropy, SEF-95, line-length, and channel-level quality metrics across entire recordings. Export the raw PSD data as CSV for downstream analysis.
- Welch PSD, custom frequency range
- Channel × band heatmap & correlation
- CSV export of PSD data