OK1CDJ

Web apps for
radio amateurs.

Free, browser-based tools. Nothing to install. · HAM RADIO 2026
Newest

FT8Web NEW

FT8 client running entirely in your browser. No install, no setup — open it and operate.

FT8Web running on Android — live QSO with TY5AD on 15M
Open FT8Web
More tools

WSPR Antenna Lab

Compare two real antennas using global WSPR data — gain, coverage, propagation efficiency.

Open

DX Radar

Live DX dashboard. Cluster + RBN spots crossed with your Club Log — see what you still need.

Open

Phonetic Trainer

Drill the NATO phonetic alphabet until it’s automatic on the mic.

Open

VHF Contest Sim

Practice the VHF contest exchange and rate before the real thing.

Open