Browser Tool · No Install Required

Cellfire Viewer

Browser-based cellular tower locator and PCI analysis tool. Upload your field data and instantly visualize RSRP coverage on an interactive map.

Works in Chrome, Firefox, Edge · No account needed for free version

cellfire.io/viewer · Cellfire Viewer

PCI 247

PCI 183

PCI 91

Works in Chrome, Firefox, Edge — no install, no account needed for the free version

Opens in a new tab · No sign-in required

Capabilities

Powerful analysis in your browser

🗺️

Plot tower locations and signal samples on a zoomable, pannable map with satellite or street view basemaps.

📶

Color-coded signal strength overlay from deep red (weak) through yellow to bright green (strong, −70 dBm+).

🔢

Identify Physical Cell ID clusters, spot conflicts, and visualize neighbor relationships spatially.

📂

Drag and drop your CSV or compatible field data. The viewer parses and renders it instantly with no server upload.

🔍

Click any cell to open a detail panel with RSRP stats, sample count, and per-PCI signal distribution.

💾

All processing happens in your browser. Your data never leaves your machine — fully private by design.

Getting Started

Click "Launch Viewer" above. No sign-in required for the free version.

Drag your CSV file onto the drop zone, or click to browse. Supports Cellfire App exports and standard drive test formats.

Zoom and pan to inspect signal coverage. Click towers or sample clusters to drill into PCI detail panels.

Screenshot the map view or export the processed data. Subscribers can save sessions and share direct links.

A Cellfire subscription unlocks RF Studio, the mobile app, and advanced viewer features.