Browse free open source Security apps and projects for Android below. Use the toggles on the left to filter open source Security apps by OS, license, language, programming language, and project status.

  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
    Learn More
  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
    Try for Free
  • 1
    Keybase client

    Keybase client

    Keybase Go library, client, service, OS X, iOS, Android, Electron

    Keybase is secure messaging and file-sharing. We use public key cryptography to ensure your messages stay private. Even we can’t read your chats. Keybase works for families, roommates, clubs, and groups of friends, too. Keybase connects to public identities, too. You can connect with communities from Twitter, Reddit, and elsewhere. Don’t live dangerously when it comes to documents. Keybase can store your group’s photos, videos, and documents with end-to-end encryption. You can set a timer on your most sensitive messages. This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 2
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
    Downloads: 13 This Week
    Last Update:
    See Project
  • 3
    Pechkin

    Pechkin

    lightweight bitmessage client

    Pechkin.v0.3.2 Copyright 2017 Fenenko Aleksandr. Licensed Apache License, Version 2.0; This is lightweight bitmessage client writing in java. Supported platform: Android,Linux,Windows PS: If you liked this programm, buy the author a coffee https://www.buymeacoffee.com/fenenkoG
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4

    Sms bomber

    Invia un sms a un numero ogni n secondi, per n volte.

    Il software permette di disturbare una persona bombardandola di sms, e se la vittima ha un device di fascia molto bassa addirittura potrebbe bloccarsi il telefono. Ovviamente questo software è solo a scopo di studio e non andrebbe usato.
    Downloads: 2 This Week
    Last Update:
    See Project
  • Keep company data safe with Chrome Enterprise Icon
    Keep company data safe with Chrome Enterprise

    Protect your business with AI policies and data loss prevention in the browser

    Make AI work your way with Chrome Enterprise. Block unapproved sites and set custom data controls that align with your company's policies.
    Download Chrome
  • 5
    PCSecrets Sync

    PCSecrets Sync

    Synchronize secrets between PCSecrets and Secrets for Android

    Secrets for Android is an app that allows you to securely store and manage passwords and secrets on your Android device. PCSecrets is an application that provides similar facilities for a PC. PCSecrets Sync is an Android app that provides a synchronization capability between the two. It makes use of the new synchronization interface introduced in Secrets for Android (SfA) 2.4. The app is essentially a service and has no direct user interaction (no user interface). The app can be installed from Google Play or the .apk file can be downloaded from here. Secrets for Android is available on Google Play. PCSecrets is available on SourceForge. Click on the web site link below for full documentation.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Briar
    Briar is a messaging app designed for activists, journalists, and anyone else who needs a safe, easy and robust way to communicate. Unlike traditional messaging tools such as email, Twitter or Telegram, Briar doesn't rely on a central server - messages are synchronized directly between the users' devices. If the Internet's down, Briar can sync via Bluetooth or Wi-Fi, keeping the information flowing in a crisis. If the Internet's up, Briar can sync via the Tor network, protecting users and their relationships from surveillance.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    F-Talk P2P Encrypted Secure Voip

    F-Talk P2P Encrypted Secure Voip

    F-Talk cross-platform p2p encrypted secure voip software

    This project connect to two peers directly ( using without any central server, stun server ) together with 128bit encrypted secure voip communication. http://ftalk.armanasci.com/guide Spefications * Peer to peer direct connection without using any central dedicated server. ( First basic part of the security ) * 128bit AES Symmetric end-to-end encryption PCM datas. ( Second basic part of the security ) * 64bit Base64 Encoding transferred server side info. * Ipv4 and Ipv6 Supoort. * Full-Dublex Communication. * Full Supports Windows,Linux,Mac and Android platforms. * Complately open source project. http://ftalk.armanasci.com/ http://blog.armanasci.com/ http://blog.armanasci.com/contact-me/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    OpenSE(Open Secure Encoder)

    OpenSE(Open Secure Encoder)

    OpenSE - Secure your online transactions today!!

    Secure Encoder is a digital secure channel which provides a way to identify yourself. For instance, you can log to your email account by filling the username and password. But, is it safety? Your email account can be stolen by the hackers. Your computer's may suffer from the virus, trojan, key logger, rootkit or phishing attack, and all of your email contents are exposed. For which applications support the Secure Encoder, you are required to input the pin number which generates from your own Secure Encoder. Thus, you can avoid the lost. It's because your account is still protected even your username and password are stolen by the hacker. Enhancing the security level and protecting your account today!!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Plum Harbor

    Plum Harbor

    An open-source file sharing app built using Next.js and Perplexity.

    An open-source file sharing app built using Next.js and Perplexity. The app employs ML-KEM-1024, ChaCha20, Serpent-256, and HMAC-SHA512 to ensure data confidentiality and integrity. The app is also equipped with a dedicated password vault. Check it out at https://plum-harbor.netlify.app/ GitHub page: https://github.com/Northstrix/plum-harbor Codeberg page: https://codeberg.org/Northstrix/plum-harbor The app is available in English and Hebrew. German version is available here: SourceForge: https://sourceforge.net/p/plum-harbor-deutsch GitHub: https://github.com/Northstrix/plum-harbor-deutsch Codeberg: https://codeberg.org/Northstrix/plum-harbor-deutsch Deployed app: https://plum-harbor-deutsch.netlify.app/
    Downloads: 0 This Week
    Last Update:
    See Project
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
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  • 10
    Plum Harbor Deutsch

    Plum Harbor Deutsch

    German version of the "Plum Harbor" file sharing app.

    Eine experimentelle Dateifreigabe App, die mit Next.js und Perplexity entwickelt wurde und es den Nutzern ermöglicht, Dateien einfach zu teilen, zu empfangen, zu senden und erneut zu senden. Die App verwendet ML-KEM-1024, ChaCha20, Serpent-256 und HMAC-SHA512, um die Vertraulichkeit und Integrität der Daten zu gewährleisten. Außerdem ist die App mit einem speziellen Passwortspeicher ausgestattet. Schau es dir an unter: https://plum-harbor-deutsch.netlify.app/ GitHub: https://github.com/Northstrix/plum-harbor-deutsch Codeberg: https://codeberg.org/Northstrix/plum-harbor-deutsch English Version: Deployed app: https://plum-harbor.netlify.app/ SourceForge: https://sourceforge.net/projects/plum-harbor/ GitHub page: https://github.com/Northstrix/plum-harbor Codeberg page: https://codeberg.org/Northstrix/plum-harbor
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    SecuXabber

    SecuXabber

    A secure Jabber-client for Android using strong encryption

    SecuXabber is a secure Jabber-client for Android that bases on Xabber and uses a strong, asymmetric enryption that works on top of the XMPP protocol. A key pair is generated on application start-up. Users can send their public key to other SecuXabber users via Bluetooth. This ensures the origin of the public key because people do a face-to-face check during key exchange. After the keys are imported by both users, all communication between them is done fully encrpyted using a strong 4096 bit end-to-end encryption.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12

    SilverTunnel-NG

    Java library for easy accessing Tor network.

    SilverTunnel-NG is a Java library that implements and encapsulates all the complex network protocol stuff needed for anonymous communication over the Tor anonymity network. SilverTunnel-NG Netlib can be easily integrated in almost every existing and new Java application. The library requires Java 1.6/Java SE 6 or a newer version. This is a fork of silvertunnel (https://silvertunnel.org) Version (0.0.4) is deployed to maven. Since Version 0.0.4 SilverTunnel-NG also runs on Android. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: http://www.yourkit.com/ . Automatic Builds and Tests are done with DEV@CloudBees : https://silvertunnel-ng.ci.cloudbees.com/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Smoke Crypto Chat Messenger for Android

    Smoke Crypto Chat Messenger for Android

    Smoke: Android Crypto Chat Messenger

    Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html
    Downloads: 0 This Week
    Last Update:
    See Project
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