The Best Open-Source Alternatives to OneNote
Are you looking for a free or self-hosted alternative to OneNote? In 2026, avoiding expensive proprietary software subscriptions is easier than ever. The open-source community has built excellent privacy-friendly tools within the Productivity & Notes ecosystem. Currently, there are 3 active replacements available, with Joplin being one of the most prominent selections.
Quick Comparison: OneNote vs. Open Source
Full comparison: OneNote vs. Joplin ā| Criteria | OneNote | OSS Replacements |
|---|---|---|
| Pricing model | Paid / Monthly Fees | 100% Free / Self-Hosted |
| Data Control | Third-party Servers | Full Ownership & Privacy |
| Customizability | Restricted by Vendor | Unlimited (Modify Codebase) |
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Joplin
Joplin is a free, open-source note-taking app that securely syncs across all your devices, providing a robust Microsoft OneNote alternative with robust data encryption and strict data sovereignty, ensuring your notes remain entirely private. With Joplin, users can create rich notes, organize with tags, and access their content on desktop, mobile, or web platforms.
TiddlyWiki is a self-contained, web-based note-taking application that empowers users to create, organize, and customize their notes in a flexible, offline-capable, and highly customizable environment. As a privacy-focused alternative to OneNote, TiddlyWiki offers users complete control over their data, no cloud syncing, and an open-source, transparent development process that values user autonomy and data ownership.
Simplenote is a free, open-source note-taking app that offers a seamless, distraction-free experience for taking and organizing notes, syncing them across all devices with end-to-end encryption for uncompromising privacy. As an alternative to Microsoft OneNote, Simplenote provides a lightweight, ad-free solution that prioritizes user autonomy, making it an excellent choice for those seeking a secure, note-taking experience.
Frequently Asked Questions
What is the best open source alternative to OneNote?
Based on GitHub community data (including star count and fork activity), Joplin stands out as one of the most reliable open-source replacements for OneNote today.
Why should I use an open-source replacement instead of OneNote?
Switching to an open-source solution ensures complete data sovereignty, protects your software environment from sudden vendor price hikes, and gives you full transparent control over your tech-stack metadata.