# UDP Sender / Receiver

> Test UDP/TCP/REST. Who's on your WiFi, IP Scanner and Port Vulnerabilities.

Canonical page: [https://chrome-stats.com/d/com.jca.udpsendreceive](https://chrome-stats.com/d/com.jca.udpsendreceive)

## Overview

- **ID:** `com.jca.udpsendreceive`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** JC Accounting & Innovative Technologies, Inc
- **Category:** TOOLS
- **Downloads:** 81,723
- **Rating:** 3.48 / 5 (350 ratings)
- **Version:** 2.2
- **Last updated:** 2025-08-27
- **First published:** 2014-07-14
- **Publisher country:** US
- **Size:** 16 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.jca.udpsendreceive)
- **Website:** [http://www.jcaccountingcpa.com/](http://www.jcaccountingcpa.com/)
- **Privacy policy:** [https://www.jcaccountingcpa.com/UDPSenderReceiver.php](https://www.jcaccountingcpa.com/UDPSenderReceiver.php)

## Description

**UDP Sender / Receiver** is a versatile Chrome extension designed to help you test network protocols and secure your WiFi network. It supports sending and receiving UDP and TCP connections as both client and server, allowing you to send UTF8 strings or raw hexadecimal byte arrays, with options to append newline characters.

Additionally, you can test REST APIs with customizable HTTP methods (GET, PUT, POST, DELETE), content types, and request bodies using the built-in JSON builder. The extension also includes powerful network scanning features to check for vulnerabilities by scanning single IPs or IP ranges, along with port ranges. You can view ping statistics with customizable timeouts, and easily retrieve your device's private and public IP addresses and MAC address. Ideal for developers and network admins, this tool offers comprehensive testing and security insights all within your browser.

## Rankings

- #241,903 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.google.android.gms.permission.AD_ID`
- `com.jca.udpsendreceive.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users appreciate the app's ease in sending and receiving UDP packets and its effectiveness with devices like Arduino and NodeMCU. However, it suffers from frequent crashes and freezes, intrusive ads, and UI issues such as hidden send buttons and small receive windows. Additionally, the lack of save settings and copy response features limits usability. Despite some shortcomings, it's considered the only reliable UDP app by several users.

### Pros

- Simple and easy to use for sending and receiving UDP packets
- Effective in working with devices like Arduino Nano 33 IoT and NodeMCU (ESP8266)
- Functional in testing multiple applications and sources, allowing the phone to act as a secondary device
- Unique functionality compared to other UDP apps, often the only working option for some users
- Nice for users needing to send UDP commands to digital signage players

### Cons

- App contains too many ads, sometimes placed under user fingers leading to accidental clicks
- App crashes frequently or freezes, especially when using the listen function or selecting infinite listening
- Lack of features like saving settings or copying received responses
- User interface problems such as buttons not visible when payload exceeds one line and very small receive window
- Doesn't support multicast and UI locks up when switching between apps

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.jca.udpsendreceive)