Password Manager
304 open source Password Manager apps
DuressKeyboardLite
APK
Keyboard with Duress Password feature. This keyboard is private, local and doesn't collect your input. Duress Password feature — the ability to wipe phone data by entering a special code right on the lock screen. This feature is available in phones where third-party keyboards can work on the lock screen. This app is a simplified version of DuressKeyboard app. This app has higher target SDK, but fewer features.
F-DroidGitHub
ESUP-NFC-TAG-DROID
APK
ESUP-NFC-TAG-DROID works as a client of an ESUP-NFC-TAG server. Android 5 (or +) and NFC support on the smartphone (or tablet) are required. Operation: * The user selects the ESUP-NFC-TAG server from his institution. * It authenticates itself. * According to its rights and the setting of ESUP-NFC-TAG, a number of 'rooms' of badging are presented. * The user selects a 'room'. * It can then badger multi-service cards. This application is only useful in the framework of use predefined by the establishment. In other words, if you find this application by chance on the Google Play Store, it is that it is not intended for you and it will be of no use to you. This application is open-source (free) as the entire project esup-sgc / esup-nfc-tag. The official page of ESUP-NFC-TAG-DROID is here: https://www.esup-portail.org/wiki/display/ESUPNFC/ESUP-NFC-TAG-DROID If you are responsible for an esup-nfc-tag server from an ESR facility that you want your esup-nfc-tag server to appear in the list of available servers, you can request it through a Pull Request proposing the modification of the list of available urls: https://github.com/EsupPortail/esup-nfc-tag-droid/blob/master/src/main/assets/urls
F-DroidGitHub
Encrypt Text
APK
A simple application to encrypt text. Can be used in combination with many other applications, to increase security and privacy. This application can be used standalone, as well as in-place, to avoid the tedious application switching. To encrypt text, simply highlight the text, and tap "ENCRYPT TEXT" from the popup menu.
F-DroidGitHub
End of Updates Checker
APK
Based on your phones model you can check until it receives security updates. After this date its recommended to not use it online, so better check out alternatives early.
F-DroidGitHub
Ente Auth - 2FA Authenticator
APK
Ente Auth is the best and the only 2FA authenticator app you will ever need. It provides secure, end-to-end encrypted backup to your codes, works across devices whether its Android, iOS, Mac, Windows, Linux or Web. It also offers quality of life features like Tap to Copy, Next Code, and even allows you to share your codes securely with others. Our customers absolutely love it. - It works everywhere and can either be used in the cloud with end-to-end encryption or on a single device without the need for an account. Ente’s UI is well thought out and easy to use. Plus it even shows you the next code if the current one is about to expire so you dont have to wait for it to roll over before your start typing. You can even pin, tag, and search your codes which makes it a lot easier to manage a big list compared to Google Authenticator. They call it a labour of love on their Github page, and it really looks like one. - Linus Tech Tips - Underrated but great authenticator app. Free, open source, and offers cloud backup. Very stable, has nice QoL features like the preview for the next code and the search bar. Overall, the best 2FA app I've used yet. - Luna Lometta - Fantastic, fluid, has a dark theme, is open source, and also has a PC program. I switched from Authy to Ente Auth precisely for this reason, and I was surprised since the app as a whole is better and faster. - Daniel Ramos - Better than Google Authenticator. - Piaw Piaw Kittens - Authy's best replacement. Open source, desktop support, synchronization, convenient token export. Huge thanks to the developers, I hope your product will become popular and famous. - Sergey Tverye Ente Auth is recommended by Linus Tech Tips, CERN, Zerodha and many others. ✨ Features EASY IMPORT Add TOTP 2FA Codes to Ente Auth easily. You can either scan a QR code, or import from other authenticator apps to make sure you never lose a code while migrating CROSS PLATFORM Ente Auth is available cross platform and supports all major devices and OS - including Android, iOS, Mac, Windows, Linux and Web. SECURE E2EE BACKUP Ente Auth provides end-to-end encrypted cloud backups so that you don't have to worry about losing your tokens. We use the same protocols Ente Photos uses to encrypt and preserve your data. OFFLINE MODE - NO SIGNUP REQUIRED Ente Auth generates 2FA tokens offline, so your network connectivity will not get in the way of your workflow. You can even use Ente Auth without signing up for backups and use it locally for as long as you want INTUITIVE SEARCH Ente Auth allows you to find your 2FA codes through one tap search. No more scrolling through a long list to find the right codes. Just tap on search and start typing. CUSTOMISE YOUR EXPERIENCE Customise your experience of Ente Auth to make it like you want. Reorder your 2FA codes so that your most frequently used services are always on top. Change the icons by choosing from our massive icon library. Add tags so that you can filter codes like you want SEE NEXT CODE Ever had to pause for the timer to run out on the current code, so you can type in the new 2FA code? Ente Auth makes your workflow extremely fast by displaying the next code prominently. Say goodbye to waiting SHARE 2FA CODE We all have sent multiple messages to that colleague who keeps asking for the 2FA code to a shared account. Such a waste of productive time. With Ente Auth, you can securely share your 2FA tokens as a link. You can even set an expiry time for the link as well. ADD NOTES Use notes to save any additional information including recovery codes. All notes are backed up with end to end encryption so you dont have to worry about losing them.
F-DroidGitHub
Ente Locker
APK
Ente Locker is a secure vault for life’s essentials — your most important documents and credentials — protected with end-to-end encryption. STORE WHAT MATTERS • IDs and personal documents • Financial records and important paperwork • Credentials and recovery details • Secure notes SHARE PRIVATELY Share specific items with trusted people, on your terms. EMERGENCY HANDOFF Set up trusted contacts so the right information can be passed on automatically when it’s needed most. PRIVACY BY DESIGN Your data is encrypted with your keys before it leaves your device, so only you can access it. Ente’s architecture and source code have been audited by Cure53.
F-DroidGitHub
EphemeralWorkProfile
APK
This app creates a temporary work profile. It will be reset when the screen is turned off or when you reboot your phone.
F-DroidGitHub
EteSync - Secure Data Sync
APK
Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, and tasks (using Tasks.org and OpenTasks). For notes, please use the EteSync Notes application. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It seamlessly integrates with Android so you won't even notice you are using it. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted tamper-proof journal which means you can review, replay and revert any changes you have made at any point in time. How does it work? =============== EteSync integrates seamlessly with your existing apps. All you need to do is sign up (or run your own instance), install the app, and enter your password. After that, you will be able to save your contacts, calendar events and tasks to EteSync using your existing Android apps, and EteSync will transparently encrypt your data and update the change journal in the background. More security, same work-flow.
F-DroidGitHub
EteSync Notes - End-to-end Encrypted Notes
APK
Secure, end-to-end encrypted, and privacy respecting note taking app. For syncing your contacts, calendars and tasks, please use the EteSync Sync app. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It's as simple as any of your non-encrypted note taking apps. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted change history which means you can review, replay and revert any changes you have made at any point in time.
F-DroidGitHub
Etopa
APK
Etopa is a free and open source (FOSS) app for two-factor-authentication (2FA). The app can use the Etopa.de instance or an own server.
GitHubIzzyOnDroid
Exodus
APK
Exodus helps you to know which trackers and permissions are embedded in apps installed on your device. The app downloads reports from the εxodus platform (https://reports.exodus-privacy.eu.org/) and shows them to you app by app. This application is developed by the French non-profit organization Exodus Privacy, visit us at https://exodus-privacy.eu.org/en/. Source Code: https://github.com/Exodus-Privacy/exodus-android-app
F-DroidGitHubIzzyOnDroid
FMD
APK
I lost my new phone. And because I don't use Google Services I couldn't locate it and my phone was gone for good. In the hope that this doesn't happen again, I developed this application, so that I can locate the phone via SMS. Features: - Locate the device (using GPS or cellular location) - Lock the device - Let the device ring - Take pictures with the device's camera to see its surroundings - Factory-reset the device Usage: You can control FMD (and thus your phone) either via SMS or via FMD Server. You send a command to the phone (e.g. "fmd ring") and the phone executes it. For SMS you can either define a list of trusted contacts (phone numbers) that are allowed to send commands. Or you can set a PIN to allow anonymous usage. Then non-trusted phone numbers can also send commands by including the PIN in the message. This is useful because now if you lose your phone, you can ask a random person for help to wipe your phone remotely. If you simply text "fmd" to your phone FMD will reply with a text listing the available commands. With FMD Server you get a web interface to send commands, to view the location of your device on a map, and to view pictures taken by the device. You can self-host FMD Server. For more details, see: https://gitlab.com/fmd-foss/fmd-server Disclaimer: This app is provided on a best effort basis. We hope it is useful, we use it ourselves, but this is a hobby project and we can't guarantee that it will work when you need it the most.
F-Droid
FMD edge
APK
FMD edge is the "cutting edge" version of FMD. FMD edge receives updates faster, more often, and slightly earlier than FMD. FMD edge releases are generally stable and ready for day-to-day use. FMD allows you to locate and remotely control your Android device. This is useful if you have lost or misplaced it. FMD is decentralised, and users remain in full control of their data. For more details about FMD, see the project website (https://fmd-foss.org/docs/overview) or the F-Droid listing for the main FMD app (https://f-droid.org/packages/de.nulide.findmydevice/).
F-Droid
Fahrraddiebstahlwarnung
APK
Berlin-bike-theft-warning is a simple application which informs the user about the number of stolen bicycles and bikeaccidents either by location or by tapping. The data is provided by Polizei Berlin and distributed by ODIS
F-DroidGitHub
Fake Contacts
APK
Create fake phone contacts, that will be stored on your phone along with your real contacts. The idea is to feed fake data to any apps or companies who are copying our private data to use or sell it. This is called "data-poisoning". Nothing about these fake contacts will interfere with your normal use of your phone or your real contacts.
F-DroidGitHub
Fauxx - Privacy Through Noise
APK
Fauxx is an open-source privacy tool that protects you by generating diverse synthetic browsing activity in the background. By flooding data brokers and ad-tech platforms with plausible off-demographic noise, Fauxx makes your real behavioral signal statistically indistinguishable from fake data. This is the FULL version distributed via F-Droid and GitHub. It includes all modules, including location spoofing and ad profile pollution, which are not available in the Play Store version due to Google's policies. HOW IT WORKS Fauxx runs quietly in the background and performs diverse browsing activities across many topic categories — searches, page visits, DNS lookups, fingerprint rotation, ad profile pollution, and GPS location spoofing. The goal is to bury your real interests under a mountain of synthetic noise so that data brokers can't build an accurate profile of you. FEATURES • Diverse search queries across Google, Bing, DuckDuckGo, and Yahoo on topics far from your real interests • Varied website visits across dozens of content categories • Ad profile pollution — loads ad-heavy pages to inject off-demographic ad signals • GPS location spoofing — feeds fake coordinates via mock location provider (requires developer options) • Browser fingerprint rotation (User-Agent, canvas noise, language headers) • DNS query diversification • Smart targeting engine with 3 layers of demographic distancing • Synthetic persona rotation — adopts a new fake identity every week • Poisson-distributed timing that mimics natural human browsing patterns • Full audit log with CSV/JSON export • On-device encryption for all personal data (SQLCipher + Android Keystore) • No accounts, no cloud storage, no analytics, no telemetry OPTIONAL DEMOGRAPHIC TARGETING Tell Fauxx about yourself (age, gender, interests, profession, region) and it will generate noise that's maximally different from your real profile. All demographic data stays encrypted on your device. Skip the setup entirely for uniform random noise. PRIVACY FIRST • All data stays on your device • No analytics, no crash reporting, no advertising identifiers • Fully open-source — inspect the code yourself • Clear All Data option to wipe everything instantly Fauxx is free, open-source, and contains no ads.
F-DroidGitHub
FiSSH
APK
This Android app stores your SSH key phrase and sends it to your PC securely via the LAN when an authorized fingerprint is detected by the Android fingerprint scanner. This app is free open-source software (licensed MIT) The PC must either run Linux or Windows to use FiSSH. FiSSH for Linux is available on GitLab together with install instructions at: https://www.gitlab.com/ioanm/fissh-desktop/blob/master/INSTALL.md. FiSSH for Windows uses the Windows Subsystem for Linux. The Windows edition is also open source and published to: https://www.gitlab.com/ioanm/fissh-windows. To install FiSSH for Windows run the command inside WSL (Windows Subsystem for Linux) UBUNTU distro: curl https://www.gitlab.com/ioanm/fissh-windows/raw/master/Release/install.sh | sudo bash The PC app then returns the received passphrase to OpenSSH and the standard ssh binary completes the login process. It is important to note that none of the FiSSH apps have access to private key file and that FiSSH uses TLS sockets with certificate validation to prevent man-in-the-middle attacks! Source Code: Linux part - https://www.gitlab.com/ioanm/FiSSH-Desktop Android app - https://www.gitlab.com/ioanm/FiSSH-App
F-Droid
FireWall Blocks
APK
FireWall Blocks is a simple, open-source Android firewall that blocks app internet access using either Shizuku or a local VPN, with no root requirement.Features:Dual Mode: Choose between the efficient Shizuku mode (recommended) or the no-setup-required VPN mode. You can even use them at the same time!Network Monitoring Screen: Real-time traffic tracking via local VPN. See which apps are actively trying to access the network and block or allow connections directly from the live monitoring log.Per-App Rules: Control Wi-Fi and Mobile Data access for each app individually.Import/Export: Save and load your firewall rules as a simple .json file.Sorting: Advanced filtering based on user apps, system apps, network permission, disabled status, uninstalled leftover rules, or blocked-placement priority.Efficient: The app doesn't need to be constantly running in the background when utilizing Shizuku mode.Elegant Reapplying: Hassle-free user experience on startup.App search and moreHow to Use:Enable the Firewall: Press the "Enable" button on the main screen.Choose Mode: Toggle between "Shizuku" (requires setup) or "VPN" (works instantly).Block Apps: Tap the Wi-Fi or Data icons next to any app to block its access.Network Monitoring: Access "Network monitoring" from the top-right menu to see app connection requests in real-time.Note: After rebooting your phone, for Shizuku mode, you must first start Shizuku, then re-open the app to re-apply the rules.
GitHubIzzyOnDroid
Flauth
APK
Flauth is a privacy-first, fully open-source TOTP authenticator for Android, macOS, Windows, and Linux. It provides a simple and lightweight solution for managing your 2FA (Two-Factor Authentication) tokens. Features: 100% Open Source: Transparent and trustworthy code. Flexible Backups: Local text file export/import and WebDAV sync. Privacy & Security: Secrets are encrypted and stored in the device's secure element (Android Keystore). Modern UI: Built with Material 3, supporting adaptive light and dark modes.
F-DroidGitHub
Flipper Mobile App
APK
Flipper Zero is a portable multi-tool for geeks in a toy-like body. This app helps to manage your data on the device, organize keys, and share it with other Flipper Zero users. Connect with us on the forum: https://forum.flipperzero.one/ Open an issue for this app: https://github.com/flipperdevices/Flipper-Android-App/issues **Features** * Connect over Bluetooth * Firmware Updater * Device Info * File Manager * Screen Streaming and Remote Input * Sync capture files (NFC, SubGHz, IR, RFID) * Dark Theme * Open Source
F-DroidGitHub
FlutCrack
APK
FlutCrack lets you crack hashes by comparing them against a dictionary of words.Features:Hash cracking and algorithms identifyingSupport for multiple hash algorithms: MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256User-friendly interface with text input and dropdown selection for hash algorithmsDynamic wordlists support ( from web, device memory or in-app created )Words hasherUsage:Open the FlutCrack application on your device or emulator.Before cracking your hash, go to the wordlists section, create and add words to your wordlist. This step is required only on the first run, as the previous wordlist will be saved for future use.Go back to the home screen, pick the wordlist you want to use from those you created, from your device memory or from the web.Enter the hash you want to crack in the text field.Select the hash algorithm from the dropdown menu (if you know it).Press the action button to start the cracking process.The result will be displayed below the input fields.Caution: The FlutCrack team does not assume any responsibility for the improper use of the app.
GitHubIzzyOnDroid
FreeOTP+
APK
NOTE: Users reported issues with the backup & restore functionality, please test this whenever you install the app on a new device. FreeOTP Plus forked the same functionality of FreeOTP provided by RedHat with the following enhancement: * Export settings to Google Drive or other document providers * Import settings from Google Drive or other document providers * Lots of stability improvement * Support Android 6.0 permissions * Enhanced UI with material design with dark theme support * Search bar to search token * Provide more token details for better interoperatibility with other apps * Utilize modern camera hardware to scan QR code faster * Option to require Biometric / PIN authentication to launch the app * Heuristic based offline icon for tokens of 250+ websites * More settings to customize the app functionality FreeOTP is a two-factor authentication (2FA) application for systems utilizing one-time password protocols (OTP). Tokens can be added easily by scanning a QR-code or by manually entering in the token configuration. FreeOTP implements open standards. This means that no proprietary server-side component is necessary: use any server-side component that implements these standards — for example FreeIPA, which uses TOTP. Any standards-compliant implementation will work. Currently, FreeOTP provides implementations of HOTP (RFC 4226) and TOTP (RFC 6238).
F-DroidGitHub
FreedomBox
APK
Features Discover FreedomBox servers on the network Display a list of installed services on the selected FreedomBox Launch Android apps and web applications for available services Save a FreedomBox and connect to it from anywhere Planned Features Save credentials for a FreedomBox and automatically login Installation help guide for various devices Automatically configure an application with the saved credentials of the FreedomBox
F-Droid
Frog Password Generator
APK
A password generator which will generate the same password only when the masterpasword, the webseite and the servicetype match.
F-DroidGitHub