Open-source alternatives to Keepass2android

MacPass is a native macOS password manager and encrypted database client designed to manage credentials using the KeePass standard. It serves as a secure credential vault for storing usernames and passwords within a hierarchical structure. The application integrates a TOTP authenticator to generate time-based and hash-based one-time passwords for multi-factor authentication. It utilizes a KeePass-compatible database engine to ensure data portability and supports keyfile-based authentication to increase decryption entropy. The project covers broader capabilities including automated credential

This project is an Android password manager application that provides an end-to-end encrypted vault for storing and synchronizing login credentials, secure notes, and identities. It functions as a secure storage system using zero-knowledge encryption to ensure that only the user can decrypt their stored data. The application integrates directly with the Android system to provide an autofill service that populates usernames and passwords into mobile apps and browser login fields. It also serves as a passkey management wallet for FIDO2 cryptographic passkeys and a time-based one-time password a

Buttercup is a cross-platform password manager and encrypted credential store designed to protect passwords and secrets across multiple operating systems. It functions as a secure vault for storing sensitive credentials, utilizing encryption for all data stored on local or remote devices. The application distinguishes itself through a provider-agnostic cloud synchronization model, which allows encrypted vault files to be synchronized between a local filesystem and various external cloud storage providers. The system maintains data security via client-side encryption and ensures data integrit

KeePassX is a cross-platform password vault application and database manager that stores usernames and passwords in an encrypted file. It utilizes the KeePass database format to secure records using a master password or an optional key file. The application includes an automatic form filler that populates login fields in external applications and a secure password generator for creating high-entropy randomized passwords. The system provides tools for organizing credentials through custom metadata and grouping, alongside utilities for searching records and importing or exporting data.

KeychainAccess is a Swift library used for storing and retrieving encrypted data within the Apple system keychain across iOS and macOS. It provides a type-safe interface for managing sensitive information and user credentials on iOS, macOS, tvOS, and watchOS. The library includes a biometric authentication interface that requires FaceID or TouchID verification with custom prompts before accessing specific secure items. It also enables the synchronization of credentials across Apple devices via a cloud keychain and provides a manager for sharing login credentials between native applications an

WildfireChat’s im-server is an open-source instant messaging backend that handles message routing, user management, and group chat for private deployments. It provides a self-hosted messaging platform that can run on private infrastructure without third-party cloud dependencies, supporting enterprise messaging with group management, user directories, and external system integration. The server synchronizes messages and state across mobile, desktop, web, and mini-program clients simultaneously, and supports real-time audio/video calls with group conferencing and live streaming. It includes enc

FingerprintPay is an Android biometric payment bridge and credential manager that replaces manual password entry with biometric verification for checkout processes in compatible mobile applications. It functions as a tool to authorize payment transactions and automate credential entry through fingerprint verification. The system utilizes hardware-backed security to decrypt stored payment credentials and map biometric identities to encrypted data blobs stored within the device hardware security module. The project covers mobile payment security and automated credential entry by combining hard

This project is a knowledge base and collection of static resources for password manager development. It provides a centralized repository of data and rules used to identify website credential behaviors and password complexity requirements. The resource set includes a mapping of native application identifiers to web domains to facilitate credential sharing and a registry of website quirks to handle non-standard authentication flows. It also contains a system for grouping affiliated domains that share credentials to improve the accuracy of account suggestions. The project covers a broad range

This project is a premium account management system and encrypted credential vault. It functions as an authentication secret manager designed to organize and retrieve high-priority credentials and tokens required for maintaining access to specialized service tiers. The system operates as a symmetric secret store, using encryption to prevent the plaintext exposure of sensitive login details. It features a layered credential vault that separates authentication secrets by service provider and access level, while utilizing permission-based filtering to restrict the retrieval of premium credential

Secretive is an SSH key manager that utilizes hardware-backed security modules to generate and store non-exportable private keys. It integrates with secure enclaves to ensure that sensitive cryptographic material remains within the hardware and cannot be exported from the device. The system implements a biometric authentication workflow, requiring fingerprint or wearable verification before a private key is released for signing operations. It also provides the ability to bridge signing requests to external hardware tokens for systems that lack a built-in secure enclave. The project includes

CookieCloud is a system for synchronizing encrypted browser cookies and local storage across multiple devices using a self-hosted server. Its primary purpose is to maintain authenticated session states across different browser installations without the need for repeated manual authentication. The project employs a client-side end-to-end encryption model, ensuring that sensitive data is encrypted and decrypted locally on the device so the synchronization server only handles ciphertext. It distinguishes itself by providing automated session maintenance, which periodically refreshes specific web

Passbolt is an open-source, self-hosted password manager designed for teams. It provides a centralized, encrypted vault where organizations can store, share, and manage credentials securely. The server exposes a JSON REST API that authenticates requests using either GPGAuth or JWT tokens, and all secrets are protected with OpenPGP end-to-end encryption, ensuring the server never has access to plaintext passwords. The platform distinguishes itself through a comprehensive role-based access control system that governs resource sharing and administrative actions. Teams can organize users into gro

NetNewsWire is an RSS feed aggregator and cloud-synced news reader. It provides a centralized interface for collecting, organizing, and consuming articles from multiple web feed formats using an XML feed parser. The application features a local database feed cache to ensure fast retrieval and offline access to content. It includes a customizable theme engine that decouples visual styling from logic, allowing the user interface appearance to be adjusted via configurable parameters. The platform supports cross-device reading synchronization for subscription lists and read markers through remot

Realm Kotlin is a local, object-oriented NoSQL database engine designed for Kotlin Multiplatform applications. It enables developers to persist structured application data directly as objects, eliminating the need for traditional relational table structures while ensuring information remains accessible during offline periods. The library distinguishes itself through a compiler-plugin-based architecture that maps standard language classes to database models at compile time. It utilizes zero-copy memory mapping and a lazy-loading query engine to manage data efficiently, while a shared C++ core

LunaTV is an IPTV streaming web application and progressive web app media aggregator. It functions as a dockerized media server that aggregates video sources and metadata from multiple external content management systems into a single searchable interface for streaming live television and on-demand video. The project distinguishes itself with a video stream ad-skipper that identifies and removes sliced advertisements from video feeds. It also features a remote configuration distribution system that delivers application settings through encoded links to automate the setup of clients. The appl

Feeder is an RSS and Atom feed reader that aggregates content into a single interface. It functions as a full-text content extractor that removes website clutter to isolate the main body of articles, and a self-hosted feed synchronizer that maintains subscription lists and read statuses across devices via a private backend server. The application integrates AI services and external API keys to translate and generate concise summaries of long-form articles. It also features a text-to-speech reader that uses system engines with automatic language detection to convert written content into spoken

Saber is a cross-platform handwriting application and digital ink organizer designed for creating, storing, and managing handwritten notes. It functions as an encrypted note synchronization tool that keeps private content consistent across phones, tablets, and computers. The application features a handwriting interface framework that supports digital document annotation and a hierarchical file system for arranging notes into nested folders. It utilizes client-side end-to-end encryption to secure data before transmission and synchronizes state across devices via a cloud relay. The system incl

This repository is a collection of technical knowledge and solutions focused on mobile application development, particularly for Android and iOS platforms. It covers a wide range of practical engineering challenges, including hotfix and patching techniques, database management and repair, network communication, logging, and video processing. The content is presented as shared knowledge, documenting real-world problems and their implementations. The project provides detailed guidance on applying hotfixes to running Android applications through multiple methods, such as class replacement, full

Feedbin is an RSS feed aggregator that collects and organizes updates from websites, video channels, and playlists into a chronological list. It functions as a centralized content manager, providing tools for feed aggregation and the organization of web-based information. The service distinguishes itself by converting email newsletters into feed entries via unique email aliases and offering a dedicated podcast manager that tracks playback progress across devices. It also includes a full-text extractor to retrieve complete articles when source feeds only provide snippets and a system to track

node-sqlite3 is a relational database client and a set of native bindings that allow Node.js applications to interact with SQLite databases. It functions as a C++ native addon, linking JavaScript to the SQLite C library to manage data stored in local files or in-memory stores. The project includes optional support for SQLCipher, enabling page-level encryption to secure local database files. The driver covers a wide range of database management capabilities, including executing SQL queries with parameter binding, managing connections to database files, and preparing statements for repeated ex

Readest is a cross-platform digital book reader and library management system designed to render multi-format ebook files across different devices. It provides a consistent interface for viewing digital content while coordinating reading progress, bookmarks, and notes through synchronization services. The application includes specialized tools for technical and academic reading, such as code syntax highlighting, a virtual split-screen viewport for comparing documents, and full-text search for rapid information retrieval. It further extends the reading experience with integrated dictionary loo

Yattee is a privacy-focused video player and multi-backend video aggregator designed for streaming online content without tracking, ads, or account requirements. It functions as a cross-platform application that collects video content from self-hosted servers, third-party APIs, and decentralized platforms into a single interface. The project features SponsorBlock integration to automatically skip sponsored or promotional segments using a community-sourced timestamp database. It also includes an Invidious-compatible API server that can replace standard endpoints to facilitate private playback.

NetNewsWire is a news aggregation tool and RSS feed reader designed for the macOS and iOS platforms. It serves as a client for subscribing to and reading syndicated web content and news feeds from various publishers. The application enables personal news curation and digital publication following by collecting content from multiple sources into a single unified interface. It supports cross-device content syncing to maintain consistent read and unread states across Apple devices. The system utilizes local-first database storage for offline access and periodic background fetching to check for

DoKit is a frontend development debugging toolset designed for web and mobile applications. It provides a suite of utilities for intercepting network traffic, mocking API responses, inspecting UI hierarchies, and monitoring mobile app performance. The project is distinguished by its focus on hybrid app inspection, allowing developers to execute scripts within web views and browse internal application sandboxes. It includes a visual UI audit tool with alignment rulers and color pickers to verify that interfaces match design specifications, as well as a diagnostic system that tracks CPU usage a

Karing is a multi-protocol proxy client and network traffic router designed to manage and direct internet traffic through various proxy protocols. It functions as a proxy subscription manager that imports and converts server lists from multiple external formats and providers into a unified configuration. The project features a cross-device synchronization system that keeps network routing settings and server lists consistent across multiple devices via cloud or local sharing. It includes a latency-based server selector that measures real-time response times to automatically connect to the fas

PicList is a cloud image upload manager and storage file browser designed to facilitate image hosting for Markdown documents. It serves as a bridge between document editors and cloud providers, providing a local server that accepts image uploads and returns formatted Markdown or HTML links. The tool features an image preprocessing pipeline that applies watermarks, compression, and custom renaming patterns before files are uploaded. It supports synchronization of application settings, image albums, and plugins across multiple devices using WebDAV and Git. The system manages files across vario

Legend-State is a reactive state management library for JavaScript applications that provides a centralized container for application data. It utilizes a fine-grained reactivity engine to track state access automatically, allowing developers to update and retrieve data without the need for boilerplate patterns like reducers, actions, or dispatchers. The library distinguishes itself through its hierarchical, path-based state addressing and proxy-based dependency tracking. By isolating state dependencies, it ensures that user interface updates are triggered only for the specific components that