Password Manager
304 open source Password Manager apps
Rivia
APK
Disclaimer: Encryption algorithm has not been audited (and should not be used on sensitive stuff). Rivia is simple and reliable encryption tool. You can choose key to protect your text messages and your unique RivTable. Setting up Rivia is easy like choose radio wave.
F-DroidGitHub
Router Keygen YoloSec
APK
This application scans all WiFi networks in the range for known vulnerabilities in default WiFi password. For selected vulnerable network it computes several possible passwords and enables to test them all. Application enables to save computed passwords to a file or load configuration files for some vulnerabilities (not related to UPC). For this app needs access to storage.
F-DroidGitHub
Ruam Mij
APK
An app for scanning suspicious apps on devices that can be risks to users in various aspects, such as apps installed from unsafe sources or misuse of Accessibility Service, and so on. Our app prioritizes user privacy, which is why we've designed it to work primarily offline, with no internet connection required. All functions of this app are under the control of the user.
F-DroidGitHub
Réseau Discord Artivain
APK
The réseau Discord Artivain (or réseau Artivain in short, which would translate to "Artivain network") project is a collaboration between multiple partnered Discord servers to boost their security, and to work together on many projects. This app is a simple way to verify if an ID is listed on the API.
F-DroidGitHub
SELinuxModeChanger
APK
Sets SELinux into desired mode on each boot.
F-DroidGitHub
SOS Alerter
APK
SOS Alerter is a modern, privacy-focused emergency assistance application designed to keep you safe when it matters most. It operates entirely offline, storing all user credentials, contacts, and captured media locally on your device. Key Features: * Emergency SMS & Call Alerts: Instantly send custom emergency SMS messages with high-accuracy GPS coordinates and auto-dial your designated contact or emergency services. * Continuous GPS Tracking: Keep contacts updated with periodic location sharing. * Discreet Evidence Gathering: Silently capture photos using front and back cameras, and record ambient audio during an active emergency. * Versatile Activation Triggers: Trigger an alert via a triple-press of the power button, shaking the device, voice commands ("Help Me"), or a long press on the main screen button. * Loud Siren & Strobe: Activate a loud siren and strobe light to grab nearby attention. * No Trackers or Ads: Free and open-source under GPLv3, with absolutely no telemetry, analytics, or third-party connections.
F-DroidGitHub
SQRL Login
APK
This app is an implementation for SQRL (Secure Quick Reliable Login) on Android. Before you begin using SQRL to login to websites, your SQRL private identity must be created. You only need one, probably for life, because it reveals NOTHING about you, and it's highly secure. It's just a very long (77-digit) random number. From then on, whenever you login with SQRL to a website, your private identity is used to generate another 77-digit number for that one website. Every website you visit sees you as a different number, yet every time you return to the same site, that site's unique number is regenerated. This allows you to be uniquely and permanently identified, yet completely anonymous. Since you never need to use an eMail address or a password, you never give a website your actual identity to protect. If the website's SQRL identities are ever stolen, not only would the stolen identities only be valid for that one website, but SQRL's cryptography prevents impersonation using stolen identities. This is as good as it sounds. It's what we've been waiting for.
F-DroidGitHub
Safe Notes - Encrypted Notepad
APK
★ Safe Notes is an open-source project that aims to provide an encrypted, private note manager. ★ Employs rigorously tested AES-256 encryption standards to encrypt your notes. ★ Incognito Keyboard ★ Brute-force protection ★ Protection against data snooping via adb ★ Android background snapshot protection ★ Inactivity guard ★ Automated encrypted backup ★ Arctic Nord style dark and light theme ★ Customization for colorful notes ★ Seamless migration to new device. Use the backup to move your data from one device to another device. ★ Safe Notes provides ultimate security - you don't have to trust us, or any other third party because everything is done locally on your phone. ★ Contrary to the ongoing frenzy of "move everything to cloud" we believe in "localization of user data" giving you the control of your data and not some third-party cloud service provider. ★ Completely anonymous, no inbound and outbound requests. --- How it works --- ★ Safe Notes encrypt each note with a unique AES-256 symmetric key derived from your passphrase and randomly generated salt. ★ If an attacker tries to brute-force your encrypted notes it will take "Trillions Upon Trillions years" in contrast, the universe has only existed for 15 billion years. (You must use strong and long passphrase). ★ AES-256 is symmetric key encryption that is quantum-resistant, i.e. it isn't vulnerable to quantum computers. ★ Everything is stored locally on the user's device. ★ Your passphrase is never stored on the device, it gets purged as soon as you exit the app. ★ We can't decrypt your notes even if we wanted to. That gives you the ultimate security, but it also means that a lost passphrase can never be recovered. ★ Safe Notes is an open-source, not-for-profit project.
F-DroidGitHub
Safe Space
APK
Safe space is an app that creates a separate place on your android device to store valuable files. This storage location is not visible to other apps and is encrypted by the system by default. Features: * Store files in a secure storage location that is not visible to other apps and is secured by device encryption and system authentication (Biometric and PIN/Pattern/Password) * Open Images, Audio, Video, PDF documents and plain text documents * Create simple text notes without leaving the app * Dark and light mode * ability to copy and move files * Import from and export files to external storage without storage permissions * Completely offline with no telemetry and data collection
F-DroidGitHub
SafeDot
APK
Do you feel envious about the new iOS 14's privacy feature that shows a dot indicator whenever CAMERA or MICROPHONE is accessed? Safe Dots adds the same iOS 14 style indicators (few pixels light up as a dot) to the top right (default) corner of your screen whenever any third-party app or service uses your phone's camera or microphone. Safe Dots will be visible even on your lock screen. Configuring the App is as simple as enabling the Safe Dots Accessibility Service (Toggle switch in the App › (More) Downloaded Services/Installed Services › Dot › Enable). By default, the App is configured to show iOS 14 style colored access dots - green for camera access, orange for microphone access. The App itself does not request for the camera or microphone access so, don't worry!. The app displays Safe Dots whenever the phone's camera or microphone is engaged by a third-party App. Maintain an Access Log, which can be accessed from the App's main settings screen. The Access Log shows when the camera/microphone was accessed, which App was in the foreground at the time of access initiation and how long did the access last.
F-DroidGitHub
S
Salasana
APK
This app allows you to generate site-specific password from a single master password. This avoids the hassle of remembering a unique password for each website you sign up to. We all have dozens (or even hundreds) of website accounts we have to remember. We are then tempted to reuse the same password for several websites. If one of them is hacked or malevolent, you risk exposing your other accounts. It mixes together your personal master password and the website domain using a little cryptographic magic we call SHA-1. It will always get the same result if given that domain name and master password, but will never get that result if either changes. (Well, once in a few billion times it might.)
F-DroidGitHub
Saracroche
APK
Note: This application is intended for use in France only. Saracroche is an Android app that protects you from unwanted calls by automatically blocking spam phone calls. It's designed to be simple, effective, and privacy-friendly. Features: • Automatically blocks spam numbers • Native Android application with modern Material Design 3 UI • Privacy-respectful: no call data is collected or transmitted • Regular updates of the spam number database • Uses Android's built-in Call Screening API for optimal performance Privacy & Security: Saracroche prioritizes your privacy. The app operates locally on your device and doesn't collect any personal information or call data. All spam detection is performed on-device using a regularly updated database. How it works: The app uses Android's Call Screening Service to automatically identify and block known spam numbers before they can disturb you. When a call comes in, Saracroche checks the number against its spam database and blocks it if it's identified as spam. Requirements: • Android 10 (API level 29) or higher • Permission to be set as the default Phone app for call screening • Intended for use in France only Open Source: Saracroche is open source software. You can review the code, contribute, or build it yourself from the source code available on GitHub.
F-Droid
Satoshi Proof
APK
Use the Bitcoin network like a notary. For example if your bike is damaged you can take a photo; then the app sends a small amount of bitcoins (a Satoshi) to a made-up address. If you ever need to prove when the photo was taken, the app can do so by checking the history of the Bitcoin network.
F-DroidGitHub
Secret Space Encryptor (SSE)
APK
➤ File Encryptor: Securely encrypt your private and confidential files or entire folders. 🎥 ~ Basic file encryption video tutorial ➤ Text Encryptor: Protect your messages, notes, cryptocurrency keys (seeds, mnemonics), and other sensitive text from unauthorized access. Use the internal database or simply copy and paste to/from your favorite apps. Set a password for each encryption/decryption session—you can use an unlimited number of passwords for different purposes (e.g., notes, emails, social networking, or communication with individuals A, B, C, etc.). 🎥 ~ Text encryption video tutorial ➤ Password Vault: Securely store and manage all your passwords, PINs, and notes in one place, protected by a single master password. Includes import/export functionality (compressed, fully encrypted .pwv format or unencrypted, editable .xml format). • Encryption Algorithms: Strong encryption using multiple ciphers, including AES (Rijndael) 256-bit, RC6 256-bit, Serpent 256-bit, Blowfish 448-bit, Twofish 256-bit + Threefish 1024-bit, SHACAL-2 512-bit, and Paranoia C4 2048-bit (available in the S.S.E. Pro version). • Steganography: The File and Text Encryptor include a steganographic feature that hides text or files within JPG images using the J-UNIWARD or F5 algorithm, combined with your chosen cipher to produce a final steganogram (JPEG image). • Additional Tools: Password Generator, Clipboard Cleaner, Algorithm Benchmark, and more. • Cross-platform Support: Desktop versions (Windows, Linux, macOS) of File Encryptor and Text Encryptor are available at: https://paranoiaworks.mobi • iOS Support: Paranoia File Encryption and Paranoia Text Encryption are also available for iOS (iPhone/iPad/iPod). • Web Version: An online, client-side JavaScript version of the File and Text Encryptor (AES) is available at: https://pteo.paranoiaworks.mobi
F-Droid
Secur: Cross-platform 2FA client
APK
Secur is a beautiful and Secure TOTP client app for 2FA, written in Flutter. All of your TOTP secrets are stored and encrypted on-device with strong AES256 encryption. Support for being able to sync secrets to the cloud is planned and will be added in the future. Want to collaborate or report a bug? https://gitlab.com/ATechnoHazard/secur
F-Droid
Secure File Manager Beta
APK
File manager for keeping your files in safe. Features * hiding files * encrypting files * create or extract encrypted Zip files * lock app with password or biometric authentication (optional) * disable screenshots (optional) * disabling thumbnails (optional) * clear cached thumbnails * set destination for creating media files (photo / video) * checksum (MD5, SHA1, SHA256, SHA512) This app is useless if you have a rooted device! Permissions clarification: https://github.com/Secure-File-Manager/Secure-File-Manager/wiki/Frequently-Asked-Questions#why-the-app-needs-specific-permission
F-DroidGitHub
Secure QR Share
APK
Secure QR Share lets you send passwords, PINs, and sensitive text to someone nearby without typing, screenshots, or cloud services — just a QR code. HOW IT WORKS 1. Sender enters text or a password and chooses a shared PIN. 2. The app encrypts the payload with AES-256 and displays a QR code. 3. Receiver scans the code with Secure QR Share, enters the same PIN, and the original text is instantly decrypted and copied to the clipboard. FEATURES • AES-256-CBC encryption with PIN-derived keys — no server, no cloud • Works fully offline — no internet permission required at runtime • Share sheet integration — highlight text anywhere and share directly into the app • App Links support — QR codes can be opened from the camera or browser • Optional unencrypted mode for non-sensitive public links • No ads, no tracking, no analytics, no accounts PRIVACY Secure QR Share never transmits your data. Everything is processed locally on your device. The encryption key is derived from your PIN and never stored or sent anywhere. OPEN SOURCE The full source code is available on GitHub under the MIT license.
F-DroidGitHub
Secure photo viewer
APK
To be used whenever you are showing off pictures to your phone. Prevents someone seeing what they are not supposed to or doing anything to your phone. Start the app by sharing pictures or videos. This app is here to protect you from you friends and enemies. Have you ever handed over your phone to show someone the latest meme? Or a cool pic you took? How often did they scroll too far and have seen something embarrassing in your gallery or image browser? Now we have a solution: Select the pictures you want them to see in your gallery, press share and select the Secure Photo Viewer! Now they will only see what you want them to see. It works with any amount of photos or videos you share from you gallery! It's that easy to protect your privacy from nosy friends.
F-DroidGitHub
S
SecureOTP - Universal OTP Extractor
APK
SecureOTP is a smart, privacy-focused Android utility that automatically detects, extracts, and copies OTP (One-Time Password) codes from ANY app notifications to your clipboard instantly. Universal App Support • SMS Messages - All messaging apps • Email - Gmail, Outlook, Yahoo, ProtonMail, etc. • Banking Apps - All major banks and fintech apps • Social Media - WhatsApp, Instagram, Facebook, Twitter, Telegram • Payment Apps - PayPal, Paytm, PhonePe, Google Pay • ANY app that sends OTP notifications! Smart Detection • Intelligently identifies OTP codes even when notifications contain multiple numbers • Filters out phone numbers, dates, and tracking numbers • Context-aware pattern matching for maximum accuracy • Supports various OTP formats (4-8 digit codes) Privacy & Security • 100% Local Processing - All OTP extraction happens on your device • No Internet Required - Works completely offline • No Data Collection - Zero data sent to servers • Open Source - Fully transparent code you can audit • No Permissions Abuse - Only uses NotificationListenerService Battery Optimized • Efficient background processing with minimal battery impact • Smart wake lock usage (max 3 seconds per notification) • Uses coroutines for non-blocking operations • No polling, no API calls, no 24/7 background services Performance • Instant OTP detection as notifications arrive • Auto-copy to clipboard - ready to paste immediately • Minimal memory footprint • Optimized for low-end devices Requirements • Android 8.0 (API 26) or higher • No internet connection needed • No account setup required Open Source SecureOTP is fully open source. View the code, contribute, or report issues on GitHub: https://github.com/26JATIN/SecureOTP
F-DroidGitHub
SecureScreen
APK
SecureScreen helps protect sensitive app content from screenshots and screen recording. Choose exactly which apps to protect, or enable system-wide mode when stronger coverage is needed. Features: - App-wise and system-wide protection modes - Search and filter the app list by name or package - Quick enable/disable from the persistent notification - Optional watermark overlay - Auto-start option after reboot Permissions are used only for local on-device protection: - Usage Access to detect the foreground app - Notification permission for foreground service visibility and controls - Overlay permission only when optional overlay features are enabled
F-DroidGitHub
SecureYourChats
APK
Text Encryption/Decryption Supported algorithms: AES, DES, CAMELLIA, ChaCha20-Poly1305, XChaCha20-Poly1305, and Aegis256. Intuitive interface to enter text, choose an algorithm, and get the encrypted or decrypted result. Generate 256-bit Key Automatically Automatically generate random 256-bit keys in the Manage Keys section. Ideal for encrypting/decrypting without manually creating keys. Share/Import Encryption Keys via QR Share any key you’ve created so others can use the same encryption key. Export your key by pressing it in the list and choosing “Export.” Import a key using a QR code in “Import key via QR” under key management. File Encryption/Decryption Select files from your device. Encrypt or decrypt them using the same algorithms. The output file name is automatically labeled “.encrypted” or “.decrypted.” Built-In Key Manager :key: Add, delete, or generate random keys. Import keys from QR codes or export them as QR codes too. Keys are stored securely (using EncryptedSharedPreferences). Share Encryption Flow Use the Share action in other apps → choose “Encrypt” or “Decrypt” for text/files. Quick and convenient for multi-app workflows. Optional Accessibility Service :handshake: Detects selected text (when you highlight text on-screen). Detects copied text (clipboard). Displays a notification to encrypt/decrypt on the fly, opening the same activity (DialogFlowEncryptionActivity) with “Choose Operation.” Toggle Accessibility Logic A “BurbujaEncryption” button (or similar) enables/disables the logic internally without turning off the service in Android Settings. Perfect for pausing detection without leaving system settings. Dialog Flow (DialogFlowEncryptionActivity) :speech_balloon: A step-by-step sequence: “Choose Operation” (Encrypt/Decrypt) “Choose Cipher” “Pick/Enter Key” Final result Offers a guided, user-friendly experience. Android 13+ Support Requests POST_NOTIFICATIONS permission if you want to see notifications when text is selected or copied. Basic Usage :rocket: Main Screen Enter text and a key (or pick a saved key). Select the algorithm from the spinner. Tap Encrypt or Decrypt. Copy or share the resulting text. File Encryption :file_folder: Tap “FILE ENCRYPTION” on the main screen (MainActivity). Choose a file and an output folder. Pick the algorithm and a key. Tap EXECUTE. Accessibility (Optional) Enable it in Settings → Accessibility → “Encrypt-DecrypT Service.” Once enabled, selecting or copying text in any app triggers a notification. Tap it to open the DialogFlow (“Choose Operation”). In MainActivity, use “BurbujaEncryption” to enable or disable detection without turning the service off in Settings. Frequently Asked Questions (FAQ) :question: How do I enable/disable the accessibility service logic without going to system settings? Use the “BurbujaEncryption” button in MainActivity. It toggles an internal SharedPreferences flag. If disabled, the service won’t process events even if it’s still enabled in system settings. What if I forget my key? You won’t be able to decrypt your text/file. Make sure you keep a record of your keys or store them in the Key Manager. Why am I not seeing notifications when copying text? On Android 13+, you must grant the POST_NOTIFICATIONS permission. Check that the accessibility service is enabled and the internal logic is not toggled off.
F-DroidGitHub
SeekPrivacy
APK
Standard vaults create a clunky "island." SeekPrivacy creates a shield. Apps like social media and basic tools demand "Storage Access"if you refuse, they break. If you accept, they spy. This creates a painful trade-off between functionality and privacy.SeekPrivacy is built on the principle that your phone's operating system and other apps should be considered "hostile territory." It assumes the Android OS is compromised and every other app is a potential spy. Its architecture ensures that even if a malicious app gains full control of the device, your data remains a cryptographic black box.SeekPrivacy eliminates this blackmail. It provides multi-layered defense by isolating data within an encrypted sandbox, inaccessible to other apps, the OS, or unauthorized physical extraction—providing activist-grade security. Built on the belief "Privacy Without the Tradeoff of Ease", even if a malicious app has full device control, it sees nothing.
F-DroidGitHubIzzyOnDroid
Seguime
APK
It stores GPS coordinates and sends them to your Web server so you can see where is the device. * You can build your own server (more privacy). * Send coordinates by Telegram (Bot) and SMS. * Settings from the website. * Control over time of activity and downtime to save battery. * Easy to create accounts without requesting personal data. * Timer for emergency. It's just a project, so it can only be used for experimental purposes and not for security purposes.
F-Droid
Sekreto
APK
The application is only in Esperanto and Russian.
F-Droid