Open Source Evernote Alternatives

Affine is a powerful, open-source platform that revolutionizes the way teams and individuals create, organize, and share knowledge. With its innovative approach to collaborative work, Affine combines the best features of note-taking, whiteboarding, and task management into a seamless, intuitive interface.

Key benefits of Affine include:

• Versatile workspace: Effortlessly switch between structured note-taking and freeform whiteboarding, adapting to your workflow needs.
• Real-time collaboration: Work together with your team in real-time, seeing changes instantly and fostering creativity.
• Local-first architecture: Enjoy the security and privacy of local storage while still benefiting from cloud synchronization when needed.
• Cross-platform compatibility: Access your work from anywhere with support for web, desktop, and mobile devices.
• Customizable and extensible: Tailor Affine to your needs with themes, plugins, and integrations.
• Open-source foundation: Benefit from a transparent, community-driven development process and the ability to self-host.

Affine's unique blend of features makes it an ideal choice for researchers, project managers, designers, and anyone looking to enhance their productivity and creativity. Experience the future of collaborative knowledge work with Affine.

AppFlowy is a versatile, open-source productivity tool that combines the best features of note-taking apps and project management software. It provides a flexible workspace where you can organize your thoughts, tasks, and projects with ease.

Key benefits of AppFlowy include:

• Customizable workspace: Tailor your digital environment to fit your unique workflow and preferences.
• Rich text editing: Create beautiful, formatted notes with support for Markdown and various media types.
• Powerful databases: Organize and visualize your data with customizable views, including tables, boards, and calendars.
• Task management: Keep track of your to-dos and projects with built-in task lists and Kanban boards.
• Open-source and privacy-focused: Your data remains under your control, with the option for self-hosting.
• Cross-platform compatibility: Access your workspace on Windows, macOS, Linux, and mobile devices.
• Regular updates: Benefit from continuous improvements and new features driven by an active community.
• Extensibility: Enhance functionality with plugins and integrations.

AppFlowy combines the flexibility of a note-taking app with the structure of a project management tool, allowing you to capture ideas, plan projects, and organize information all in one place. Whether you're a student, professional, or creative, AppFlowy adapts to your needs, helping you stay organized and productive.

Memos is a powerful, privacy-focused note-taking solution that puts you in control of your data. This lightweight, open-source tool offers a seamless experience for capturing and organizing your thoughts.

Key features:

• Privacy First: All your data is securely stored in your local database, ensuring complete control over your information.
• Lightning-Fast Creation: Save content as plain text for quick access, with Markdown support for easy formatting and sharing.
• Lightweight yet Powerful: Built with Go and React.js, Memos delivers robust performance without unnecessary bloat.
• Customizable: Easily personalize your server name, icon, description, system style, and execution scripts.
• Open Source: Embrace transparency and collaboration with full access to the source code on GitHub.
• Free to Use: Enjoy all features at no cost, with no hidden charges or limitations.

Why choose Memos?

1. Effortless Note-Taking: Quickly jot down ideas, create to-do lists, or draft longer content with an intuitive interface.
2. Secure Self-Hosting: Keep your data under your control by hosting Memos on your own server or device.
3. Markdown Support: Format your notes with ease using Markdown syntax for clean, structured content.
4. Cross-Platform Sync: Access your notes from any device with seamless synchronization.
5. Active Community: Benefit from regular updates and improvements driven by a passionate open-source community.

Whether you're a student, professional, or creative thinker, Memos provides a streamlined, secure environment for capturing and organizing your ideas. Experience the freedom of open-source, privacy-focused note-taking today!

Joplin is a powerful, open-source note-taking and to-do application that puts your privacy and productivity first. With its intuitive interface and robust features, Joplin makes it easy to capture, organize, and access your thoughts, ideas, and tasks across all your devices.

Key benefits of Joplin include:

• End-to-end encryption: Keep your notes secure with military-grade encryption, ensuring your data remains private and protected.
• Cross-platform synchronization: Seamlessly access your notes on Windows, macOS, Linux, Android, and iOS, with real-time syncing across devices.
• Markdown support: Create beautifully formatted notes using Markdown, with a live preview to see your changes instantly.
• Rich media integration: Easily embed images, audio, and other file types directly into your notes for comprehensive documentation.
• Customizable organization: Use notebooks, sub-notebooks, and tags to create a structure that fits your unique workflow.
• Web clipper: Save web pages and screenshots directly to Joplin with the browser extension for effortless research and reference.
• Search and filter: Quickly find the information you need with powerful search capabilities and customizable filters.
• Import and export: Seamlessly transition from other note-taking apps by importing your existing notes, and export your data in various formats.
• Plugin system: Extend Joplin's functionality with a growing ecosystem of community-developed plugins.

Experience the freedom of open-source note-taking with Joplin, where your ideas flow freely, and your data remains yours.

SiYuan is a robust personal knowledge management system designed with privacy at its core. It offers a unique blend of features that cater to users who value data security and efficient information organization.

Key features of SiYuan include:

• Complete offline usage: Work on your knowledge base without an internet connection, ensuring your data remains under your control.
• End-to-end encrypted sync: Securely synchronize your data across devices without compromising privacy.
• Block-level editing: Organize your thoughts and knowledge at a granular level, making it easier to reference and link information.
• Bidirectional linking: Create a web of interconnected knowledge, enhancing the discoverability and context of your notes.
• WYSIWYG editor: Enjoy a user-friendly interface that supports Markdown formatting.
• AI integration: Access OpenAI capabilities to assist with writing, translation, and idea generation.
• Database functionality: Create relational databases within your knowledge base for more structured data management.
• Spaced repetition: Improve memory retention with built-in review algorithms.

SiYuan stands out by combining the power of block-level referencing, bidirectional links, and a privacy-first approach. This makes it an ideal tool for users who need to manage complex information structures while maintaining control over their data. Whether you're a researcher, writer, or knowledge worker, SiYuan provides the tools to refactor your thinking and build a comprehensive personal knowledge base.

Notesnook is the ultimate solution for privacy-conscious individuals who want to keep their thoughts, ideas, and information secure. This powerful note-taking app combines robust security features with a user-friendly interface, making it the perfect choice for both personal and professional use.

Key benefits of Notesnook include:

• End-to-end encryption: Your notes are encrypted on your device before being synced, ensuring that only you can access your information.
• Cross-platform synchronization: Seamlessly access your notes across all your devices, including Windows, macOS, Linux, iOS, and Android.
• Rich text editing: Create beautifully formatted notes with support for Markdown, tables, and code blocks.
• Offline support: Work on your notes anytime, anywhere, even without an internet connection.
• Organization tools: Keep your notes organized with notebooks, tags, and powerful search capabilities.
• Import and export: Easily migrate your notes from other platforms or export them in various formats.
• Customizable themes: Personalize your note-taking experience with light and dark modes.
• Regular updates: Benefit from continuous improvements and new features added by the dedicated development team.

With Notesnook, you can focus on capturing your ideas and staying productive, knowing that your privacy is protected. Whether you're a student, professional, or creative individual, Notesnook provides the tools you need to manage your digital life securely and efficiently.

Blinko is a powerful self-hosted note-taking solution that puts you in control of your personal knowledge management. With its intuitive interface, you can:

• Create and organize notes with rich text formatting and markdown support
• Build connections between related notes to create a personal knowledge graph
• Keep your data private and secure by self-hosting on your own infrastructure
• Access your notes from anywhere through web and mobile interfaces
• Import and export notes in standard formats for data portability
• Customize the experience with themes and plugins

Perfect for students, researchers, writers, and anyone who wants to build a structured personal knowledge base while maintaining complete control over their data.

AnyType revolutionizes personal knowledge management by offering a flexible, open-source platform that adapts to your unique way of thinking. At its core, AnyType allows you to create and connect customizable objects, representing anything from notes and tasks to projects and contacts.

Key benefits of AnyType include:

• Infinite customization: Design your own object types and relations to match your specific needs and workflows.
• Powerful linking: Create meaningful connections between your ideas, tasks, and information for a truly interconnected knowledge base.
• Local-first approach: Your data stays on your device, ensuring privacy and control over your information.
• Cross-platform synchronization: Seamlessly access and update your knowledge across all your devices.
• Open-source foundation: Benefit from community-driven development and the ability to extend functionality.
• Markdown support: Write and format your content with ease using familiar Markdown syntax.
• Graph view: Visualize the connections between your objects for better insight and discovery.
• Customizable views: Organize and display your information in tables, boards, or galleries to suit your preferences.

AnyType empowers you to build a digital second brain that truly reflects your thought processes, making it an indispensable tool for researchers, writers, students, and anyone seeking to organize their digital life more effectively.

Standard Notes is a powerful, open-source note-taking application designed for those who value privacy and security in their digital lives. With a focus on simplicity and robust encryption, it offers a seamless experience across all your devices.

Key benefits of Standard Notes include:

• End-to-end encryption: Your notes are protected with AES-256 encryption, ensuring that only you can access your data.
• Cross-platform synchronization: Seamlessly access your notes on desktop, mobile, and web browsers.
• Offline access: Work on your notes anytime, anywhere, even without an internet connection.
• Markdown support: Write and format your notes efficiently using Markdown syntax.
• Customizable experience: Extend functionality with editors, themes, and components through the Extensions system.
• Long-term data integrity: With encrypted backups and data portability, your notes are safe and accessible for years to come.
• Open-source transparency: The codebase is open for review, fostering trust and community-driven improvements.
• No ads or tracking: Your privacy is respected with a clean, distraction-free interface.

Standard Notes offers both free and paid plans, allowing users to choose the level of features that best suits their needs. Whether you're jotting down quick thoughts, managing complex projects, or safeguarding sensitive information, Standard Notes provides a secure and versatile solution for all your note-taking requirements.

Beaver Notes is a powerful open-source note-taking application built with privacy and productivity in mind. Your notes are stored exclusively on your local device, ensuring complete data privacy and control.

Key features include:

• Privacy-First Design: All notes are saved locally on your computer
• Markdown Support: Create rich formatted content with simple text syntax
• Note Linking: Build a personal knowledge graph by connecting related notes
• Command Prompt: Quick access to search, settings, and theme switching
• Advanced Organization: Tag system and heading tree for easy navigation
• Rich Media Support: Embed documents, presentations, and create diagrams with Mermaid
• Export Options: Share notes as PDFs or sync across devices using your preferred cloud service
• Code & Math Support: Syntax highlighting for code blocks and LaTeX math expressions

The application combines modern design with powerful features while maintaining simplicity and ease of use. Whether you're taking personal notes, managing projects, or creating documentation, Beaver Notes provides the tools you need without compromising on privacy.

A clean, quiet space for your thoughts with zero vendor lock-in. Your notes live in standard Markdown within a local SQLite database, ensuring your content remains accessible forever.

Key Features:

• Lightweight & Fast: Single Go binary (~20MB memory) or Docker deployment
• Future-Proof Storage: Standard Markdown files in local SQLite - no proprietary formats
• Flexible Organization: Tag-based system with custom "Focus Modes" instead of rigid folders
• Instant Search: Full-text search with BM25 ranking across all content
• Rich Markdown Support: Tables, code blocks, task lists, highlights, and more

Smart Workflow:

• Multiple Views: Switch between list, card, and gallery layouts
• Image Support: Drag-and-drop images with automatic management
• Archive & Restore: Soft delete with cleanup automation
• Keyboard Shortcuts: Essential shortcuts for creating, searching, and formatting
• Mobile-Friendly: Responsive design with PWA installation option

Built for Longevity:

• Offline Access: Read and edit notes without internet connection
• Dark Mode: Comfortable reading in low-light environments
• Import Options: Migrate existing Markdown and text files seamlessly
• MCP Server: Connect AI apps to chat with your notes and discover connections
• Minimal Dependencies: Lean codebase reduces bit rot risk for long-term stability

Darkwrite is a feature-rich note-taking application designed for users who value both functionality and privacy. The editor supports essential formatting options like lists, text styling, and image embedding while maintaining a clean, distraction-free interface.

Key benefits:

• Truly offline experience: All your notes are stored locally, ensuring complete privacy and constant access
• Customizable interface: Choose from multiple themes and fonts to create your perfect writing environment
• Export flexibility: Save your work as HTML files for easy sharing and backup
• Cross-platform compatibility: Available for Windows, Linux, and macOS
• Open-source transparency: Full access to the source code ensures security and trust

Whether you're taking quick notes or working on longer documents, Darkwrite provides the perfect balance of features and simplicity while keeping your data private and secure.

OpenNotas is a versatile and user-friendly note-taking application designed for personal use across multiple platforms. Here are its key features and benefits:

1. Simplicity: OpenNotas boasts an intuitive interface, allowing users to start writing notes immediately without navigating complex settings.

2. Multi-platform support: Available on various devices and operating systems, including mobile phones, computers, Windows, Linux, and macOS.

3. Synchronization: Users can sync their notes across devices through Adapter configuration, ensuring access to their information from anywhere.

4. End-to-End Encryption (E2EE): Utilizes AES algorithm to encrypt note data before storing it on the server, guaranteeing data security and privacy.

5. Offline functionality: OpenNotas can be used without an internet connection, with data stored locally and synced when connectivity is restored.

6. Free and open-source: The application is completely free to use and has its source code openly available.

7. Customizable sync options: Users can set up note syncing across devices through Adapter configuration, providing flexibility in how data is managed.

8. Data control: OpenNotas does not store user note data on its servers, giving users full control over their information.

9. Multiple language support: The application is available in various languages, including English, Vietnamese, and Traditional Chinese.

OpenNotas strikes a balance between simplicity and functionality, making it an excellent choice for users who prioritize privacy, ease of use, and cross-platform availability in their note-taking solution.

Justnote is a privacy-focused note-taking app designed for simplicity, speed, and data ownership. Key features include:

• Simple and fast interface for quick note-taking on any device
• End-to-end encryption to keep your notes private and secure
• Cross-device syncing to access notes anywhere
• Web3 technology that gives you full control of your account and data
• No ads or data mining
• Rich text editor with formatting options
• Dark mode for comfortable night-time use
• Available on web, iOS, and Android

Justnote uses blockchain technology from Stacks to create a truly decentralized app where only you can access and control your account and notes. Your data is encrypted and stored on servers of your choice.

With Justnote, you can quickly jot down ideas, to-do lists, and other notes without worrying about privacy or losing access to your data. The clean, distraction-free interface lets you focus on your thoughts.

Whether you need a simple notepad for quick memos or a secure place to store sensitive information, Justnote provides an easy-to-use and private note-taking experience across all your devices.

Cloudmark transforms how you manage your web bookmarks with powerful cloud-based features. Save any webpage instantly with a simple drag-and-drop browser extension that works across all major browsers. The smart categorization system automatically organizes your bookmarks into logical groups, making it easy to find what you need.

Key benefits include:

• One-click saving from any browser or device
• Intelligent auto-categorization of bookmarks
• Cross-device sync and access
• Collaborative features for sharing collections
• Clean, intuitive interface for easy navigation
• Secure cloud storage of your bookmarks

Whether you're a professional managing research materials or a casual user keeping track of interesting content, Cloudmark provides a seamless way to organize and access your digital resources.