Serial Communication Tool

[v1.4.0 NEW] Send history (↑↓ keys), Macro scripting (SEND/WAIT/RETRY), Regex alerts, RX/TX rate display, Drag & drop reorder, Auto-save on disconnect, Response time monitor, Per-command timeout, Auto-scroll pause

Serial Communication Tool is a browser extension for communicating with PC COM ports (serial devices) using the Web Serial API. No dedicated software installation required — send, receive, and log serial data directly in Chrome.

• Serial Communication — Configure baud rate, data bits, parity, stop bits, flow control, RTS/DTR signals
• Send/Receive Log — Timestamped logs with export (TXT/JSON/CSV), filtering, and auto-save on disconnect
• Send History [NEW] — Press ↑/↓ to recall past commands (up to 50)
• Quick Commands — Register frequently used commands for one-click sending with drag & drop reordering
• Macro Automation [NEW] — SEND/WAIT/RETRY syntax for automated sequences with response waiting and retries
• Alert Monitoring — Keyword alerts with beep and highlight, regex pattern support
• RX/TX Rate Display [NEW] — Real-time communication speed (bytes/sec) on the monitor strip
• Response Time Measurement — Measures time from send to device response
• HEX Binary Send — Send binary data in hexadecimal format
• Profile Sharing — Import/export connection settings for team sharing
• Auto-Connect — Automatic reconnection to previously used devices
• Keyboard Shortcuts — Ctrl+D, Ctrl+L, Ctrl+Shift+S, /, ↑↓, Escape
• Multi-language — 8 languages: Japanese, English, Chinese, German, French, Portuguese (Brazil), Spanish (Latin America), Korean