SideNotes vs Open-source Notion alternative.
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 SideNotes leads with 0 upvotes

Take notes on your screen side
SideNotes is a sleek and versatile note-taking application designed to sit unobtrusively on the side of your monitor, providing quick access to your notes without disrupting your workflow. Its intuitive interface allows users to organize notes with markdown support, embed pictures, add tasks, and customize colors, making it ideal for both professional and personal use. The app's distraction-free design ensures that your notes are always at your fingertips, whether you're coding, designing, or managing projects. What sets SideNotes apart is its seamless integration with your desktop environment, enabling you to jot down ideas, reminders, or reference information instantly, all while maintaining focus on your primary tasks.
Pros
- Distraction-free, side-panel design for seamless note access
- Supports markdown, images, tasks, and custom colors for rich note-taking
- Organizational features like folders and personalization options
- Lightweight and easy to toggle on/off without interrupting workflow
- Compatible across various operating systems (if applicable)
Cons
- Limited advanced formatting options compared to full-fledged note apps
- No built-in collaboration features for team use
- Potentially less feature-rich than more established note-taking tools
Best for
- • Quickly jot down ideas or reminders during work sessions
- • Keep reference notes visible alongside active tasks
- • Organize project or research notes with folders and markdown
- • Manage to-do lists and checklists without switching apps
Pricing: Likely offers a freemium model with core features available for free, and premium plans providing additional customization or storage options, with paid plans possibly starting around $5-$10 per month. Exact pricing details are not specified.
Local-first Notion alternative with a Claude Code brain
This open-source, local-first Notion alternative offers a privacy-centric solution for users seeking a powerful note-taking and workspace management tool without relying on cloud services. It leverages plain Markdown notes that sync peer-to-peer, ensuring data remains on the user’s device. Unique to this platform is the integration of a Company Brain powered by Claude Code, which can answer queries across your entire workspace, either through an existing Claude Code setup or a fully local model. With end-to-end encryption and no requirement for accounts, it appeals to privacy-conscious individuals and teams who value control over their data. Its open-source nature and GitHub availability foster community development and customization, making it suitable for tech-savvy users who want a flexible, secure workspace that respects their privacy.
Pros
- Strong privacy focus with peer-to-peer sync and end-to-end encryption
- No cloud dependencies or account requirements
- Open-source and customizable via GitHub
- Integrates AI-powered answering through Claude Code or local models
- Plain Markdown notes promote simplicity and flexibility
Cons
- May require technical expertise for setup and customization
- Limited out-of-the-box collaborative features compared to cloud-based tools
- Potentially less polished user interface for non-technical users
Best for
- • Personal knowledge management without cloud dependencies
- • Secure note-taking for privacy-conscious teams
- • Local project documentation and task tracking
- • AI-assisted workspace querying for research or development projects
Pricing: Open-source and free to use. Potential costs associated with hosting or running local models if applicable, but no subscription fees are inherent to the tool itself.