The question of how to find the password for someone else's Wi-Fi from an Android phoneoften arises in situations where the user has forgotten the access key to his own network or wants to connect an additional device without having a note with the code at hand. It is important to immediately clarify the ethical and technical aspect: by legal means you can only find out the password from a network to which your smartphone has already been connected before, or from a network of which you are the administrator. Hacking someone else's secure network without the owner's permission is an illegal act and violates the principles of cybersecurity.
Modern versions of the operating system Android provide built-in tools for managing connections that make the process of recovering a forgotten password simple and safe. Starting with Android 10, Google introduced the function of generating QR codes for fast network sharing, where the encryption key is often available in clear text or can be decrypted using standard system tools. In older versions, for example Android 9 Pie and lower, the procedure requires obtaining superuser rights or access to system configuration files, which is associated with certain risks for the stability of the device.
In this material we will analyze in detail all working methods for viewing saved access keys, starting from standard interface settings and ending with advanced methods via ADB or root access. You will learn how to extract data from system files wpa_supplicant.conf, how to read information from a QR code without using third-party scanners, and what restrictions the security policy of modern smartphones imposes on these processes.
Viewing a password through the settings of Android 10 and higher
Starting with the tenth version of the mobile operating system, the procedure for viewing saved data has become intuitive and does not require installation of additional software. If your smartphone runs on Android 10, Android 11 or newer, just go to the wireless network settings section. The system stores access keys in encrypted form, but provides the user with an interface for visualizing them in the form of a graphical code.
To begin, open the menu Settings and go to the section Wi-Fi or Connections. In the list of available networks, find the one to which you are currently connected, or select a saved network from the archive (in some shells, for example One UI from Samsung or MIUI from Xiaomi, this item may be called "Saved networks"). Click on the gear icon next to the network name or just tap on the name of the access point.
On the connection_details_ screen you will see a button Share or icon QR code. When you click on it, the system will ask you to confirm your identity through biometrics (fingerprint, Face ID) or enter the screen unlock PIN code. This is a security measure that ensures that only the owner of the device can access sensitive data.
⚠️ Attention: On some smartphone models, especially with custom skins, the password may not be displayed in text under the QR code, but may be encrypted inside the QR code itself. images. In this case, you will need to take a screenshot and recognize it through a third-party application.
After successful authentication, a square code and, in most cases, a text string with a password below it will appear on the screen. If the text is hidden, the system prompts you to scan this code with another device to connect. However, when using the built-in scanner in the camera or the Google Lens app, you can sometimes see a decrypted connection string containing the key.
If the password is not displayed in the text below the QR code, take a screenshot of the screen with the code, then open the Google Photos or Google Lens app and select the Search by Image or Text function - the system will recognize the encrypted data and show password.
Using a QR code and third-party scanners
If the built-in interface of your smartphone does not show the password in text, but only generates a QR code, you can use third-party tools to decode the image content. A QR code for Wi-Fi contains a format string WIFI:S:SSID;T:WPA;P:PASSWORD;;where the value after P: is the required access key.
There are many free applications in Google Play Marketthat can read and analyze such codes. You don't have to install specialized "crackers", any high-quality barcode scanner is enough. After installing the application, open it, select the scanning mode from the gallery and indicate the previously taken screenshot with the QR code of your network.
- 📱 Google Lens: the built-in tool, often pre-installed on stock Android, perfectly recognizes text data inside codes.
- 🔍 QR & Barcode Scanner: a popular third-party application with a simple interface and history scans.
- 🛡️ Kaspersky QR Scanner: in addition to reading the code, it checks the link or data for threats, which is useful for security.
After scanning, the application will display the result as a text string. You need to find the part of the line following the character P:. All characters up to the double semicolon ;; at the end of this section will be your password. Pay attention to letter case and special characters, as they are critical when connecting.
Root method and file manager
For devices on database Android 9 and below, as well as for cases when the standard interface does not provide the necessary information, the only way is direct access to system files. This method requires root access (superuser rights) obtained through utilities such as Magisk or KingRoot. Without these rights, the system will not allow you to open the configuration file where the keys are stored.
If superuser rights are already activated, you will need an advanced file manager that supports working with system directories, for example Root Explorer, ES Explorer (old versions) or Solid Explorer. After launching the application, grant it root privileges the first time it is prompted. Then you need to go to the following path:
/data/misc/wifi/wpa_supplicant.confIn some firmware versions, the path may differ slightly, for example /data/wifi/wpa_supplicant.conf. The file wpa_supplicant.conf is a text file and contains the configuration of all networks to which the smartphone has ever been connected. Open it with the file manager's built-in text editor.
⚠️ Warning: Manually editing this file may result in the loss of all saved networks and the inability to connect to Wi-Fi until the settings are reset. Open the file in read-only mode if your goal is simply to find out the password.
Inside the file you will see blocks of code starting with the word network. Each such block corresponds to one saved network. Find the line ssid="Name_of Your_Network", and just below - the line psk="Your_Password". The value in quotes after psk is the WPA/WPA2 security key.
What to do if the file is empty or cannot be opened?
If the file cannot be opened even with root access, your device may have data encryption enabled, which blocks access to system partitions until the screen is fully loaded and the screen is unlocked. Try rebooting the device and immediately opening the file before connecting to the network.
Login to the router control panel
An alternative way to find out the password without resorting to hacking the phone system or obtaining root access is to log into the web interface of the router itself. This method works if your phone is connected to a given Wi-Fi network, even if you don't know its password (since the connection is already established). You can see the access key in the wireless mode settings of the router.
First you need to find out the IP address of the gateway. Go to the Wi-Fi settings on your phone, click on the connected network and find the item Gateway or Router. Most often this is an address like 192.168.0.1 or 192.168.1.1. Enter this address into the address bar of any browser on your smartphone (Chrome, Firefox, Samsung Internet).
The router authorization page will open. Here you will need an administrator login and password. By default, on many devices (TP-Link, ASUS, D-Link), this data is indicated on a sticker on the bottom of the router case. Standard combinations are often admin/admin or admin/password. If you have changed these data before and do not remember them, you will have to reset the router to factory settings.
| Manufacturer | Standard IP | Default login | Default password |
|---|---|---|---|
| TP-Link | 192.168.0.1 | admin | admin |
| ASUS | 192.168.1.1 | admin | admin |
| D-Link | 192.168.0.1 | admin | (empty) |
| Xiaomi | 192.168.31.1 | admin | (set during setup) |
| Zyxel | 192.168.1.1 | admin | 1234 |
After successfully logging into the control panel, find the section responsible for the wireless network. It may be called Wireless, Wi-Fi, Wireless mode or WLAN. Inside this section, look for subsection Security (Security) or Wireless network settings. Field Password, PSK key or Wireless Password will be displayed there. Often the password is hidden by asterisks, but next to it there is a “Show” button or a checkbox to display the symbols.
Logging into the router panel is the most reliable way to find out the password without root access, but it requires knowledge of the administrator credentials of the router itself.
Recovery via a computer and command line
If you have access to a Windows computer that was previously connected to the desired Wi-Fi network, you can find out the password via the command line and then transfer him on the phone. This method does not require the installation of additional software and works on any version of Windows, starting with XP.
Run Command Prompt as an administrator. To do this, right-click on the Start menu and select Windows PowerShell (administrator) or Command line (administrator). Enter the command to view a list of all saved network profiles:
netsh wlan show profilesIn the list, find the exact name of your network (SSID). Then enter a command to display detailed information about a specific profile, adding a parameter key=clearthat reveals the security key:
netsh wlan show profile name="Network_Name" key=clearIn the command output, find the section Security settings (Security settings). Line Key contents (Key Content) will contain your password in clear text. Copy it and enter it manually on your phone. This method is especially useful if the phone cannot display the QR code and the router is in an inaccessible place.
⚠️ Attention: Commands are case and space sensitive. If the network name contains spaces, be sure to enclose it in quotation marks, as shown in the example above, otherwise the command will generate an error.
Security limitations and hacking myths
There are many myths on the Internet about applications that can “hack” any Wi-Fi in one second. It is important to understand that modern encryption protocols WPA2 and WPA3 are highly resistant to password guessing. Applications that promise instant access to other people's networks without knowing the password and without having previously connected to them are fraudulent in 99% of cases.
Such apps often contain malicious code, miners, or simply show endless advertising, simulating the selection process. Real password search (brute-force) requires enormous computing power and time, which can be calculated in years for complex combinations of characters. A phone does not have the resources to effectively carry out such attacks.
- 🚫 The myth of the “universal key”: there is no master password that is suitable for all routers of the same brand.
- 📉 Efficiency of WPS: many applications use the vulnerability of the WPS protocol, but on modern routers this function is disabled by default or protected from brute force.
- 🛑 Risk of infection: downloading dubious APK files from forums can lead to the theft of your personal data, including passwords for banking applications.
The only legal and working way to access "foreign" network (for example, a neighbor's network or a cafe) is to ask the owner for the password. Technical means of bypassing protection without the knowledge of the network administrator fall under the article on unauthorized access to computer information.
Why do applications like Wi-Fi Master Key work?
They do not hack the network. They work like a social network: users of these applications voluntarily share passwords from their networks with the application database. When you arrive at the cafe, the app downloads the password that someone previously entered and shared. This creates risks of leaking your personal networks.
Frequently asked questions (FAQ)
Is it possible to find out the Wi-Fi password on Android without root access on version 8 and below?
Unfortunately, on versions of Android below 10 without root access, it is impossible to view the saved password through the system settings. The configuration file is not readable by normal applications. The only option is to log into the router's control panel through a browser if you are connected to the network, or use a Windows computer to view the saved profile via the command line.
Is it safe to use password recovery applications from the Market?
Most applications that require root access to read the file wpa_supplicant.conf, are safe if they have a high rating and many reviews. However, applications that promise to "hack" without root are most often useless. Always check the permissions that the application asks for: if a simple password viewer asks for access to contacts or microphone, this is a reason to remove it.
What to do if the QR code shows an error when scanning?
The error may occur due to image corruption, screen brightness is too low, or the camera is dirty. Try increasing the display brightness to maximum, cleaning the camera lens, and making sure that the entire code square fits within the scanner frame. If this does not help, use the "Search by Image" function in Google Lens, which is less demanding on the quality of the code.
Can changing the password on the router remove it from the phone's memory?
No, the phone will save the old password in its memory. If you try to connect to the network with a new password, the router will reject the connection and the phone will display an “Authentication” or “Invalid Password” error. You will need to forget this network in the Wi-Fi settings (Forget network) and enter a new access key manually.
Where are Wi-Fi passwords stored in the Android system?
In modern versions of Android (10+), data is stored in the system's secure storage, which can be accessed carried out through the settings API. In older versions (before Android 10), text keys are stored in a file /data/misc/wifi/wpa_supplicant.conf, which is accessible only to a user with superuser rights (root).