This is an app that allows you to connect to Wi-Fi simply by scanning the Wi-Fi QR code.

1. If you have a WiFi QR code, you can easily access WiFi without knowing the password.

2. Android 9 (P, API 28) and earlier
1) You can directly connect to WiFi by using the QR recognition function (using zxing) supported by this app.
2) You can delete Wi-Fi network immediately by pressing the Delete button.

3. Android 10 (Q, API 29) and later
1) You can directly connect to WiFi using the Wi-Fi Easy Connect (DPP) function supported from Android 10.
2) You can also access by using the QR recognition function (using zxing) supported by this app. (However, you must click the Allow button.)
3) Supports shortcut to WiFi setting window to delete WiFi information. (The latest Android versions cannot programmatically delete WiFi network. In the future, if Android supports programmatic deletion, the function will be added.)

4. WiFi QR Generator
There are many apps and sites that Generate WiFi QR codes.
In the link below, there is a WiFi QR Generator (for Windows) that I made myself. Hope you enjoy using it a lot.

https://mungkhs.tistory.com/90

5. Location permission is required to change WiFi function. You also need camera permission to use the QR code. However, this app does not store or transmit any information.