30 open-source projects similar to appflowy-io/appflowy, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
AFFiNE is a collaborative knowledge base and productivity suite designed as a private-first, local-first platform. It provides an integrated workspace that combines structured documents with an infinite digital canvas, allowing users to organize complex information through a block-based model. By prioritizing local data persistence, the platform ensures immediate responsiveness and data sovereignty while maintaining a distributed state for real-time synchronization across multiple devices. The platform distinguishes itself through a canvas-integrated database engine that enables transitions b
GitJournal is a mobile-first note-taking application and self-hosted manager for creating a structured markdown knowledge base. It functions as a git-synced notebook, allowing users to organize long-term information and notes as markdown files with metadata. The system ensures data portability and ownership by storing notes in a private version control repository. This approach enables cross-device synchronization and consistency through the use of git operations. The application supports digital note migration by importing data from third-party services into a local markdown format. It furt
Joplin is an open-source, cross-platform note-taking application designed for secure, private knowledge management. It functions as a local-first productivity platform, maintaining a complete relational database on the user's device to ensure offline availability and high-performance data retrieval. The application prioritizes data sovereignty by implementing an end-to-end encryption layer, which secures all information locally with a master key before any synchronization occurs. The platform distinguishes itself through a delta-based synchronization engine that transmits only specific file c
Siyuan is a self-hosted knowledge management platform designed for private note-taking and information organization. It functions as a local-first application that stores all user content as plain text files on the local file system, ensuring data ownership and offline availability. The platform utilizes a block-based document model, which structures information as a tree of independent content blocks to facilitate granular manipulation and bidirectional linking. Users can extend the core functionality through a sandboxed plugin architecture, allowing for the development of custom themes and
Logseq is a privacy-focused, local-first knowledge base designed for personal information management and networked thought mapping. It functions as a bi-directional graph editor that organizes content into hierarchical, outliner-based structures, allowing users to connect related concepts through automated backlinking and visual relationship mapping. The platform distinguishes itself by maintaining all user data in plain text markdown files stored directly on the local device, ensuring offline availability and long-term portability. It employs a logic-based query engine to perform complex rel
Teable is a self-hosted relational data management tool and no-code PostgreSQL database. It provides a spreadsheet-like interface for managing and querying structured data, allowing users to interact with a professional database backend without writing manual SQL for every operation. The platform is an extensible low-code system that allows for the integration of custom plugins and extensions through a dedicated application bridge and marketplace. It enables the creation of tailored internal tools by adding new features or modifying behavior via these external extensions. The system covers a
Hoppscotch is an open-source API development ecosystem designed for building, testing, and debugging REST, GraphQL, and real-time APIs. It provides a unified platform that functions across web browsers, desktop applications, and command-line interfaces, allowing developers to manage the entire API lifecycle from a single environment. The platform distinguishes itself through a highly interactive, command-driven interface that utilizes a global spotlight palette and keyboard shortcuts to streamline complex workflows. It supports advanced request manipulation and validation by executing JavaScr
NocoDB is a visual platform that transforms relational databases into collaborative, spreadsheet-style workspaces. By acting as a headless database backend, it provides a unified environment for designing database structures, managing record relationships, and interacting with data without requiring manual SQL queries. The platform normalizes interactions across various SQL and NoSQL data sources, allowing users to manage complex datasets through a centralized interface. The project distinguishes itself by automatically generating RESTful and GraphQL APIs from existing database schemas, enabl
Open-notebook is a collaborative workspace designed for knowledge management and structured data workflows. It functions as a centralized repository where users can document, refine, and retrieve information while interacting with artificial intelligence models to generate content and process complex data. The platform distinguishes itself through a local-first data persistence model that ensures offline availability and performance, paired with state-synchronized collaborative editing for real-time team sessions. It utilizes a virtualized rendering engine to maintain interface responsiveness
Supermemory is an artificial intelligence memory management platform designed to provide autonomous agents with persistent, long-term knowledge bases. It functions as a centralized repository that synchronizes multimodal data, enabling agents to maintain context and historical information across complex, multi-session workflows. By serving as a knowledge graph engine and vector database orchestrator, the platform ensures that information remains accessible and relevant for automated tasks. The system distinguishes itself through its hybrid indexing approach, which combines vector similarity s
Stash is a self-hosted platform designed for organizing, cataloging, and managing personal video collections. It functions as a local server that indexes media files from your file system and stores their relationships, tags, and metadata within a relational database. The platform distinguishes itself through a modular, plugin-driven scraper engine that automatically retrieves and normalizes metadata from community-maintained online sources. This system eliminates manual data entry by populating your library with detailed information about performers, studios, and content tags. Beyond basic
Timy - open source mobile app for groups to communicate and organize themselves. Built with flutter.
HistoryOfEverything is a Flutter timeline visualization and interactive event chronology. It serves as a visual demonstration of layout and animation capabilities, rendering historic events as a scalable graphical representation. The project focuses on interactive timeline visualization and the chronological display of data. It creates a visual experience where historical milestones are organized and presented in a way that dynamically scales to fit various screen dimensions. The implementation utilizes Flutter UI development practices, employing widget-based composition and animation contro
fsnotes is a markdown notes manager and cross-platform markdown editor for macOS and iOS. It functions as a personal knowledge base that organizes plain text and markdown files across folders using tags and bidirectional links. The system provides a secure environment through an encrypted plain text notebook that protects individual notes and folders. It implements Git-based note versioning to track document changes and maintain backups, while relying on external cloud storage services to synchronize files across devices. The application renders mathematical formulas, diagrams, and syntax-hi
A Simple Todo app design in Flutter to keep track of your task on daily basis. Its build on BLoC Pattern. You can add a project, labels, and due-date to your task also you can sort your task on the basis of project, label, and dates
BookStack is a self-hosted knowledge base platform designed for organizing, storing, and managing structured documentation. It utilizes a hierarchical content model that arranges information into nested trees of books, chapters, and pages, supported by a dedicated search index for rapid retrieval across the entire knowledge base. The platform distinguishes itself through deep integration with enterprise identity providers, allowing organizations to centralize authentication and access control via LDAP, SAML, or OIDC. It provides extensive administrative control over the content lifecycle, inc
This project is a Flutter UI component gallery and reference application. It serves as a visual catalog of reusable interface patterns and a library of interactive demonstrations for over 140 common Flutter user interface widgets. The application provides a way to explore widget implementations and browse live component demos. It functions as a reference for Flutter UI development and widget exploration, allowing for the testing of standard user interface elements.
Flutter Music Player - First Open Source Flutter based material design music player with audio plugin to play local music files.
A quick hack using image and transform widgets
This is a comprehensive library of code examples and reference implementations for building cross-platform user interfaces with Flutter. The project provides a collection of demo applications and guides designed to illustrate the implementation of design patterns, animation techniques, and testing workflows. The repository features specific demonstrations for native integration, including examples of embedding modules into existing native applications, using platform channels, and bridging native code with the framework. It also serves as an animation reference, providing implementations for
Minimalist Flutter Todo App, built using BLoC pattern