Open-source alternatives to AFFiNE

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

Leanote is a collaborative Markdown editor, hierarchical note manager, and self-hosted blogging platform. It functions as a knowledge base that uses a document store to organize structured notebooks and rich-text documents. The system enables real-time co-authoring, allowing multiple users to simultaneously edit documents and brainstorm ideas. It also includes a publishing engine that transforms private notes into public-facing blogs using customizable themes and multi-contributor management. The platform provides tools for knowledge management through notebooks and tags, supporting both ric

This project is a virtual whiteboard component and vector graphics editor designed for creating diagrams with a hand-drawn aesthetic. It provides a canvas-based drawing engine that can be embedded directly into web applications, allowing users to manipulate shapes, upload images, and export visual data into standard formats like PNG, SVG, or JSON. The platform distinguishes itself through a real-time synchronization layer that supports multi-user collaboration across distributed environments. This engine utilizes end-to-end encryption to secure shared sessions and employs a local-first data p

This project is a community-curated directory of open-source software designed for deployment in private server environments and home labs. It serves as a comprehensive resource for discovering independent, self-hosted alternatives to mainstream cloud services, enabling users to maintain full data ownership and control over their digital infrastructure. The directory is structured through a hierarchical taxonomy that organizes a vast collection of applications into logical categories, ranging from media management and data analytics to private communication and team productivity tools. It dis

Memos is a self-hosted, container-native knowledge management platform designed for capturing and organizing personal notes. It functions as a private workspace where users can create content using markdown, tags, and media embeds to streamline daily productivity. The system is built to be deployed as a portable service, allowing individuals to maintain full control over their data and hosting environment. Beyond its core note-taking capabilities, the platform operates as a headless content service that exposes a structured RESTful API. This interface allows for programmatic interaction, enab

Stirling-PDF is a self-hosted document processing suite designed for secure, private file management. It functions as a comprehensive transformation engine that executes complex operations—such as merging, splitting, converting, and redacting documents—directly on the host machine. The platform provides both a browser-based interface for interactive editing and a programmatic, API-first architecture that allows for the automation of document workflows through standard HTTP requests. The project distinguishes itself through its focus on private, infrastructure-agnostic deployment and granular

Focalboard is an open-source project management tool and collaborative task organizer. It functions as a kanban board system where users define, track, and update project tasks within a shared digital workspace. The platform is designed for self-hosted team collaboration, allowing organizations to manage project goals and workflows on their own private infrastructure. It provides a visual environment for mapping out complex projects and coordinating team efforts without the use of proprietary software. The software covers project task management and visual workflow organization through the u

Yjs is a CRDT framework and real-time state synchronization engine providing shared data types for collaborative software. It functions as a shared data type library of collaborative maps, arrays, and text structures that converge automatically across distributed clients, serving as a local-first data store and a collaborative editor backend. The system distinguishes itself through a synchronization engine that encodes document changes into commutative binary updates. It employs state-vector based differencing to transmit only missing incremental updates between peers and uses relative-positi

This project is a self-hosted documentation platform designed for collaborative knowledge base management. It provides a block-based editor that structures content as a tree of independent nodes, allowing for flexible layout composition and the creation of complex, nested document hierarchies. The platform distinguishes itself through an offline-first architecture that utilizes conflict-free replicated data types to maintain synchronization across multiple clients. This ensures that teams can continue editing content during network disconnections, with all changes merging automatically once c

Automatisch is an open-source, self-hosted automation platform designed to orchestrate multi-stage workflows across various third-party web services. It functions as a no-code integration engine that allows users to connect disparate applications, enabling the automated movement of data and the execution of tasks without manual intervention. By running the platform on private infrastructure, users maintain full control over their data and ensure compliance with internal security policies. The platform distinguishes itself through a focus on secure, local credential management and flexible int

BlockNote is a block-based rich text editor and a real-time collaborative workspace. It uses a JSON-based data model to organize content into draggable, nestable blocks rather than a single flat document. The system functions as a high-level interface built on ProseMirror that abstracts document state into discrete, manipulatable content blocks. The project serves as a framework for integrating large language models into document editors, enabling context-aware text generation and AI-driven workflows. It also acts as a document export engine capable of converting structured block data into fo

Jaaz is a self-hosted AI design suite and multimodal workspace used for generating and editing images and videos. It functions as a design workspace where users can produce visual content and assets through a combination of local and cloud-based AI models. The project features a hybrid model orchestrator that routes requests between local model runners and remote APIs to balance data privacy with processing performance. It utilizes an infinite canvas collaborative tool for organizing storyboards and assets, and includes an image prompt optimizer to translate rough ideas into detailed generati

Electric is a Postgres data synchronization engine and replication proxy designed to enable local-first software. It replicates data from Postgres databases to client-side stores in real time using logical replication, allowing applications to maintain a local embedded database for offline access and low-latency updates. The system distinguishes itself by using shapes to filter and authorize specific subsets of database rows and columns before streaming them to clients or edge workers. It further supports multi-user collaboration by integrating a conflict-free replicated data type framework t

Illa-builder is a low-code internal tool builder and API integration platform used to create business applications and admin panels. It functions as a database GUI dashboard and visual workflow automator, allowing users to connect to databases and external APIs to manage data and automate business processes. The platform provides a self-hosted app framework that can be deployed on private infrastructure via Docker. It enables the creation of custom dashboards and CRMs while maintaining full control over data and hosting. The system includes a visual drag-and-drop canvas for designing user in

Maybe is a self-hosted financial platform designed for private deployment, providing a centralized interface to track investments, budgets, and net worth. By running the application on your own infrastructure, you maintain full control over your sensitive financial data and privacy. The platform is delivered as a containerized application suite, utilizing a declarative configuration framework to manage service lifecycles. It distinguishes itself through a structured approach to version control, allowing users to pin specific release tags to ensure environment consistency and perform controlle

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

This project is a self-hosted RSS feed aggregator and reader designed to collect and organize content from RSS, Atom, and JSON feeds. It functions as a privacy-focused client that blocks pixel trackers and strips URL parameters to prevent third-party tracking and referrer leakage. The system is built as a REST API feed reader, exposing its data and user accounts through a programmable interface for third-party clients. It maintains compatibility with the OPML standard for importing and exporting subscriptions and provides tools for web content extraction using readability parsers and custom r

Blinko is a personal knowledge management system and an LLM-powered knowledge base that enables users to capture and organize thoughts through a bi-directional knowledge graph. It functions as a RAG-enabled note-taking application and a self-hosted Markdown editor, allowing for the creation of permanent documentation and fleeting notes. The project distinguishes itself by integrating retrieval-augmented generation to provide conversational querying and AI-powered analysis of private document libraries. It supports both cloud-based and local AI model integration, enabling users to perform sema

Docmost is an open-source knowledge management system designed as a collaborative documentation platform for teams. It functions as an enterprise wiki that centralizes organizational information into structured, searchable workspaces, enabling users to create, organize, and share content through a hierarchical system of spaces and pages. The platform distinguishes itself by integrating artificial intelligence directly into the documentation lifecycle. It utilizes vector-based semantic search to allow for natural language queries across stored content and provides AI-assisted tools for draftin

This project is an enterprise-grade Java framework designed for building scalable, full-stack e-commerce applications. It provides a comprehensive foundation for microservice-based distributed architectures, enabling the development of complex retail platforms that include product management, order processing, and secure user authentication. By leveraging modular service patterns and centralized API gateways, the framework supports the construction of resilient systems that decompose monolithic business logic into independent, manageable services. The platform distinguishes itself through a r

Notesnook is a cross-platform note-taking application designed for private knowledge management. It functions as a secure personal information manager that prioritizes user data confidentiality by employing client-side end-to-end encryption for all stored notes, attachments, and metadata. By utilizing a local-first synchronization model, the application ensures that information remains accessible offline while maintaining a consistent state across desktop and mobile devices. The platform distinguishes itself through a focus on privacy-centric organization and secure information handling. User

Fast and beautiful note-taking app written in C++. Write down your thoughts.

Paperless-ngx is a self-hosted document management server designed to transform physical paperwork into a searchable, organized digital archive. It functions as a private platform for storing, indexing, and retrieving documents, providing users with full control over their data on local infrastructure or private cloud servers. The system distinguishes itself through an automated workflow engine that categorizes, tags, and routes incoming files using content analysis and metadata extraction. To maintain responsiveness during resource-intensive tasks like optical character recognition, it utili

QOwnNotes is a desktop note editor that stores each note as a plain-text Markdown file on the local filesystem, avoiding proprietary formats and enabling direct file access. It functions as a Nextcloud Notes client, syncing notes and metadata with Nextcloud or ownCloud servers through a companion API service for versioning and sharing. The application also integrates with AI providers and exposes a local MCP server for external agents to search and fetch notes, and includes a companion browser extension for capturing web content, bookmarks, and screenshots. The editor distinguishes itself thr

This project is an artificial intelligence-powered frontend generator that translates visual design inputs into functional source code. It functions as a workflow engine that interprets graphical user interfaces, mapping layout structures and styling rules to structured markup and programming language syntax. The tool distinguishes itself by supporting both static design mockups and dynamic video recordings. It processes temporal and spatial information from screen captures to reconstruct interaction flows and state transitions, enabling the creation of functional software prototypes from vis

RustDesk is a cross-platform remote desktop client that enables users to initiate and receive remote sessions. It provides a complete infrastructure for self-hosted remote access, utilizing a signaling and relay server architecture to maintain connectivity when direct peer-to-peer links are unavailable. The software is designed to function across desktop and mobile environments, offering native remote control, screen sharing, and file management capabilities. What distinguishes the platform is its centralized administrative control plane, which allows for granular management of security polic