Apps to Open Source

andOTP is a free and open-source Two-Factor Authentication (2FA) application for Android devices. It enables users to generate time-based (TOTP) and HMAC-based (HOTP) one-time passwords securely, enhancing the security of their online accounts.

FreeOTP is a free and open-source two-factor authentication application for generating one-time passwords, supporting both HOTP and TOTP standards. It enhances online security by providing an extra layer of protection beyond just passwords.

Electrum is a free and open-source Bitcoin wallet renowned for its speed, low resource usage, and strong security features. It runs on various operating systems and supports hardware wallets for enhanced protection.

Blokada is a free and open-source application for Android and iOS, designed to block advertisements, trackers, malware, and other unwanted content across your entire device. It offers system-wide protection without requiring root access and provides advanced features like custom DNS configuration and VPN functionality for enhanced privacy.

Ubuntu Touch is a mobile operating system based on Ubuntu, offering a privacy-focused experience with a unique gesture-driven interface and convergence capabilities, allowing your phone to act as a PC when connected to an external display.

GNU ddrescue is a powerful command-line tool for recovering data from faulty storage devices like hard drives, CD-ROMs, and USB drives. It excels at retrieving data even with read errors, making it an essential utility for disaster recovery and data forensics.

Terasology is an open-source, voxel-based sandbox game inspired by similar titles but with a strong focus on modularity, extensibility, and community-driven content. It offers a rich and evolving world for exploration, crafting, and construction.

Brimir is an open-source, self-hosted helpdesk ticketing system designed to streamline customer support operations. It provides a centralized platform for managing customer inquiries, tracking support tickets, and collaborating with team members. Brimir aims to be a flexible and customizable solution for businesses of all sizes.

Virtual Router Plus transforms your Windows computer into a wireless hotspot, enabling you to share your internet connection with other devices like smartphones, tablets, and laptops wirelessly. It's a free and portable solution for creating a virtual Wi-Fi network.

Habari is a free, open-source blog engine built on PHP, offering a flexible platform for publishing content. It supports multiple database backends like MySQL, SQLite, and PostgreSQL, providing versatility for users.

Apple Lossless Audio Codec (ALAC) is an audio coding format developed by Apple that provides lossless compression of digital audio. It's designed to reduce file size without sacrificing audio quality, offering a high-fidelity listening experience.

Alien Arena is a fast-paced, free-to-play deathmatch style first-person shooter set in a futuristic, science-fiction universe. It emphasizes classic arena combat with a variety of weapons, maps, and game modes, offering both online multiplayer and single-player bot matches for intense action.

Tahoe-LAFS is a free and open-source distributed storage system. It focuses on security, privacy, and fault tolerance by encrypting, encoding, and distributing your data across multiple nodes.

Silence.im is an encrypted text messaging application for Android that prioritizes user privacy and security. It allows for secure communication via SMS/MMS, offering end-to-end encryption when communicating with other Silence users. The app is open-source and ad-free, providing a simple yet powerful platform for private mobile messaging.

GPGTools is a comprehensive suite of open-source software for macOS that empowers users with the ability to encrypt, decrypt, sign, and verify emails and files using the OpenPGP standard. It seamlessly integrates with Apple Mail and provides a secure gateway for sensitive communications and data handling.

QuteCom, formerly WengoPhone, was a free and open-source VoIP client supporting the SIP protocol. It enabled users to make voice and video calls, send instant messages, and connect with contacts across various networks, including Google Talk.

Window Detective is a powerful open-source developer tool that allows users to inspect, analyze, and modify properties of windows belonging to any running application. It provides in-depth information about window handles, classes, styles, and relationships, making it an essential utility for debugging and understanding the Windows GUI structure.

Bit Chat is a secure, open-source, peer-to-peer instant messenger platform that prioritizes user privacy and security through robust end-to-end encryption and a decentralized network architecture. It empowers users with direct, encrypted communication, bypassing central servers and enhancing resistance to surveillance and censorship.

Kadu is a free, open-source, multi-platform instant messaging client supporting Gadu-Gadu, XMPP, and related services like Google Talk, providing users with a versatile and extensible communication tool.

Sentrifugo HRMS is an open-source Human Resources Management System designed to streamline various HR functions. It offers a comprehensive suite of modules including employee management, attendance and time tracking, performance reviews, expense and asset handling, and powerful HR analytics. This on-premises solution provides businesses with a robust and flexible platform to manage their workforce effectively.

PWGen is a robust and open-source random password generator designed for strong cryptographic security. It leverages user input and system parameters to generate highly unpredictable passwords, essential for safeguarding your online identity and sensitive information. This utility focuses purely on creating secure passwords without storing or managing them.

Tint Browser is a discontinued open-source web browser for Android 4+ focusing on customization, privacy, and a lightweight design. It offered a tabbed interface, bookmark management, and built-in ad blocking, catering to users seeking an alternative to mainstream browsers with more control.

BookStack is a free and open-source platform designed for creating and managing documentation and wiki content. Built with PHP and Laravel, it provides a straightforward and user-friendly interface for structuring information effectively for teams and individuals.

xCHM is a free and open-source cross-platform GUI application designed for viewing compiled HTML Help (CHM) files. It acts as a front-end to the CHMLIB library, providing a user-friendly interface to navigate and read the content within these archive files, commonly used for software documentation and ebooks.

FreeDOS is a free and open-source operating system providing a complete MS-DOS compatible environment for running classic software, playing retro games, and supporting embedded systems on IBM PC compatible computers.

Mautic is a powerful, open-source marketing automation platform designed to empower businesses of all sizes with the tools they need to manage customer relationships, automate campaigns, generate leads, and analyze marketing performance.

OpenRA is a free and open-source real-time strategy game engine that breathes new life into classic Westwood Studios titles like Command & Conquer and Red Alert. It allows players to experience these beloved games with modern enhancements and features.

Librevault is an open-source, zero-knowledge peer-to-peer file synchronization tool emphasizing privacy and security. It allows users to sync files directly between their devices without reliance on a central cloud server, ensuring data remains under user control and is protected by end-to-end encryption.

Apertium is a free, open-source machine translation platform utilizing rule-based methods. It provides versatile translation capabilities, including online translation, browser integration, and potential for localized content.

Shadowsocks is an open-source, lightweight SOCKS5 proxy designed to bypass internet censorship. It provides a secure tunnel between your device and the internet, helping users access blocked content and surf anonymously by encrypting traffic and making it appear as regular HTTPS traffic.