NetworkCat

TCP/UDP debugging tool

Only for Mac

Free · In‑App Purchases

Mac

Meet the new MQTT client with MQTT 3.1.1/5.0, TLS and WebSocket transports, topic subscriptions, QoS, and retained messages—plus an easier way to share feedback. Communicate and debug with your self-developed network programs or network devices (e.g., Modbus devices) using this app, supporting ASCII/HEX modes for data transmission and reception. 1. Supports TCP (Client/Server), WebSocket (Client/Server), UDP Unicast/Multicast/Broadcast modes, MQTT 3.1.1 / 5.0 (more protocols being added) 2. Supports ASCII/HEX sending and receiving, with data convertible between hexadecimal and ASCII formats, including support for sending and displaying Chinese characters 3. Supports automatic addition of carriage return and line feed (CRLF) options for AT commands 4. Sending content supports escape characters, automatically parsing common escape sequences like \r, \n, \t into corresponding ASCII codes for transmission 5. Supports log reception mode, automatically displaying timestamps and other related information when receiving content 6. Traffic counting, statistics for sent and received packets and bytes 7. Supports interval sending 8. And many other features...

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• Added an MQTT client with support for MQTT 3.1.1 and 5.0, mqtt/mqtts and ws/wss transports, topic subscriptions and publishing, QoS 0–2, retained messages, authentication, and detailed logs. • Added a feedback feature, making it easier to send suggestions and report issues.

Version 1.7.0

The developer, 旭中 何, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
旭中 何
Size
1.5 MB
Category
Developer Tools
Compatibility
Requires macOS 13.0 or later.
  • Mac
    Requires macOS 13.0 or later.
Languages
English and 2 more
  • English, Japanese, Simplified Chinese
Age Rating
4+
In-App Purchases
Yes
  • A Lunch $4.99
  • Two Cups of Coffee $3.99
  • A Cup of Coffee $0.99
  • Learn More
Copyright
© Xuz
  • Developer Website
  • Privacy Policy

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