Serial Terminal
UART/RS232/RS485 Debug Monitor
Only for Mac
$3.99 · In‑App Purchases
Mac
Serial Terminal is a macOS serial debugging tool for IoT and embedded engineers. Connect to USB-to-Serial / UART devices, send and receive data reliably, and troubleshoot protocols faster.
Highlights:
• Quick Setup: Port, baud rate, data bits, parity, stop bits
• Terminal Mode: VT100/Xterm emulation for embedded shells with control keys and local echo
• Debugging: Text/HEX view, common encodings, and line endings (LF/CRLF)
• Protocol Inspector (one-time purchase): Split TX/RX streams into frames, decode named fields, validate CRC, use built-in Modbus RTU, and export CSV/JSON
• Productivity: Timestamps, auto-scroll, search/filter, copy & clear
• MCP Server: Built-in MCP server support via SSE
• Logging: Export and save logs locally for review and sharing
• Sending Tools: Quick send, repeat/timer send, file send
• Compatibility: Works with USB-Serial and RS232/RS485 via adapters
Privacy:
• No personal data collected
• No serial data uploaded
• Everything stays on your Mac
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Added Protocol Inspector with five framing modes, custom fields and checksum rules, plus built-in Modbus RTU decoding.
• Added a template editor and sample tester, template import/export, and filtered CSV/JSON frame export.
• Preview 100 successfully framed live records with built-in templates for free, then unlock permanently with one purchase. Restore Purchase is included.
• The retained-frame limit is configurable, and all protocol and serial data stays on your Mac.
• Log messages now offer right-click Copy Text and a new Text View for free cross-line selection. Toolbars adapt to narrow windows, and the send button shows its ⌘↩ shortcut.
The developer, 志健 袁, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 志健 袁
- Size
- 9.9 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 14.6 or later.
- Mac
Requires macOS 14.6 or later.
- Mac
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Polish, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Protocol Inspector Lifetime $3.99
- Copyright
- © 2025 Yuan Zhijian. All rights reserved.
