RustCOM — COM Port Analyzer

A multi-port serial-port analyzer with embedded Lua scripting, built with Tauri 2 and Svelte 5.

Features

• Multi-port tabs — open many COM ports at once, each with its own buffer, settings, and history.
• Three views — ASCII, Hex (16-byte rows with offset + ASCII gutter), or Both. ANSI escape stripping.
• Send modes — ASCII with selectable line endings (None, \r, \n, \r\n) or raw hex (AA BB 0D 0A).
• Send macros — named one-shot snippets, optional F1–F12 hotkeys, persisted to disk.
• Lua scripting — write scripts in a Monaco editor, run them against the active tab; API includes serial.send, serial.send_text, serial.send_hex, on_recv, log, delay, ui.toast.
• Live plot view — define a regex with named capture groups (e.g. temp:(?<temp>\d+\.\d+)) and watch RX values render as a streaming line chart. Pause / Resume / Save CSV.
• Multi-tab Lua — tabs.send(id, ...), tabs.send_text(id, "AT"), tabs.on_recv(id, fn) so one script can drive several ports.
• Session restore — opt-in: open tabs are remembered across restarts (disconnected on relaunch).
• Display-time regex filter per tab (preserves the underlying buffer).
• Per-tab logging with native save dialog.
• Ctrl+F search with regex toggle and inline highlights.
• Auto-reconnect per tab.
• Connection settings — baud 300–921600, data bits 5/6/7/8, stop 1/2, parity None/Even/Odd, flow None/SW/HW, DTR/RTS toggles.

Download

Pre-built executables ship from the Releases page.

Building from source

Prerequisites

• Rust 1.77+
• Node.js 20+
• Tauri CLI 2: cargo install tauri-cli --version "^2.0.0" --locked

Per-platform:

• Windows — Build Tools for Visual Studio 2022 with "Desktop development with C++". WebView2 is preinstalled on Windows 11.
• Linux — sudo apt install libwebkit2gtk-4.1-dev libssl-dev libgtk-3-dev libayatana-appindicator3-dev librsvg2-dev
• macOS — Xcode Command Line Tools.

Run in dev

npm install
cargo tauri dev

Build a release binary

cargo tauri build

Artifacts land in src-tauri/target/release/bundle/.

Project layout

RustCOM/
├── src-tauri/        Rust backend (Tauri commands, serial workers, Lua engine)
├── src/              Svelte 5 frontend
└── docs/             Specs and plans

Persistence

Settings, macros, and scripts live in your OS user-data dir:

• Windows: %LOCALAPPDATA%\rustcom\
• macOS: ~/Library/Application Support/rustcom/
• Linux: ~/.local/share/rustcom/

License

MIT — see LICENSE.