KUON Tools

Free, no-account, fully in-browser GNSS / positioning utilities: the interoperability bridge for surveyors, precision-agriculture and drone / robotics developers.

🛰GNSS

RINEX Converter

Convert receiver raw logs (u-blox .ubx RXM-RAWX, RTCM3, SBF) to RINEX. RTKLIB convbin backend; files auto-delete after 24h.

Raw GNSS → RINEX →

📈GNSS

RINEX Viewer

Open a RINEX observation (.obs) file and see satellite availability over time. Header summary, SNR. Fully client-side.

Inspect RINEX obs →

🔄Convert

GNSS Track Converter

Convert NMEA, .ubx, GPX, KML, GeoJSON and CSV between each other. Get a GPS track into Google Earth / QGIS.

NMEA/UBX/GPX/KML/GeoJSON/CSV →

🗜GNSS

RINEX Hatanaka

Compress / decompress RINEX observations with the Hatanaka format (.crx ⇄ .obs). RNXCMP (GSI). Supports IGS .crx/.d.

crx2rnx / rnx2crx →

🔍GNSS

RINEX QC

Basic quality check of RINEX / CRINEX: epoch count, gap %, satellites per constellation. IGS .crx auto-decompressed.

epochs, gaps, per-system →

🗺MAP

KUON MAP

Live RTK base-station map, cm-scale log plotting, satellite visibility (KUON SKY), baseline checker, coordinates / geoid / declination, rain radar.

The live GNSS map →

📡GNSS

RTK Stations

Ranks the world’s goodwill RTK base stations by richness score × uptime. Every station has a permanent page and a live SVG badge.

RTK base station board →

🌍SKY

KUON ORBIT

Real-time SGP4 tracking of GNSS satellites (GPS/GLONASS/Galileo/BeiDou/QZSS), the ISS and Starlink.

Live satellite tracking →

Coming soon

Advanced QC (cycle slips, multipath / Anubis)
RINEX version conversion (2.11 ↔ 3.04 ↔ 4.0)
Batch coordinate transform (CSV → any CRS)

Everything runs on your device (converters) or with no account. New to this, or wondering “what is RTK?”: see the FAQ. feedback
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