⚡ FREE · NO UPLOAD · RINEX v2 & v3
RINEX File Analyzer
Drag a RINEX observation file (.obs / .rnx, v2 or v3) to get an instant quality-control report: epochs, satellites per epoch, constellations, observation types, data completeness and approximate position. Runs entirely in your browser — your data never leaves your computer.
RINEX (Receiver Independent Exchange Format) is the universal text format for raw GNSS observations. Before you post-process a static session or submit data to a PPP service, a quick QC check saves hours: confirm the epoch count, satellite geometry, completeness, and that the receiver and antenna are correctly recorded. This analyzer reads the file directly in your browser — nothing is uploaded.