Welcome to the Web-FT8 Client

⚠️ Early Release Beta ⚠️

What is Web-FT8?

Web-FT8 is a modern, standalone web application engineered to decode and encode FT8 weak-signal digital mode communications directly inside standard web browsers without requiring complex desktop installations like WSJT-X for quick operations.

Built specifically for amateur radio operators, it combines a high-performance WebAudio waterfall spectrum analyzer, client-side WebAssembly (Wasm) signal processing, Rig CAT control via Web Serial, and direct cloud logging integrations like QRZ.com.

Key Features

Real-Time Waterfall & Spectrum: Full 0–3 kHz audio passband visualization with adjustable contrast, brightness, noise floor, and speed settings.
Client-Side Decoding: Powered by modern WebAssembly modules to process 15-second FT8 time slots instantly in your browser.
Rig CAT Control: Direct transceiver frequency monitoring, band switching, and PTT management via the browser's Web Serial API.
Automated Sequencing & Queue: Smart multi-station QSO state handling and waiting queue management for incoming callers.
Seamless Logbook & QRZ Integration: Built-in local storage logbook tracking with ADIF export utilities and secure backend proxy uploads to QRZ.com.

System Requirements & Setup

Supported Browsers: Chromium-based browsers (Google Chrome, Microsoft Edge, Opera) running on HTTPS or localhost are required for Web Serial CAT support and audio permissions.
Audio Setup: Connect your transceiver audio output into your computer line-in/USB sound card and grant microphone permissions when prompted.
UTC Time Sync: Precise time synchronization (accurate within ±200ms) is critical for FT8 decoding. Use the built-in UTC sync tool to verify clock accuracy.

Operator Access

Don't have an account? Register here

Having trouble logging in? Contact Jake@w5txx.com

Quick Start Guide

Step 1: Log in with your assigned amateur radio operator credentials.
Step 2: Grant microphone permissions and select your transceiver audio input device.
Step 3: Tune to your desired band (e.g., 20m 14.074 MHz) and click Start RX.
Step 4: Connect your rig via Web Serial for automatic frequency tracking and PTT control.

Amateur Radio Community

Designed for portable operations, field days, and shack convenience, Web-FT8 brings seamless accessibility to ham radio operators worldwide.

Licensed Amateur Radio Operator Call Sign: W5TXX