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OpenNotas vs SiYuan

Learn how OpenNotas and SiYuan differ in their key features, development activity, technology stack and community adoption, so you can decide which of these note-taking tools is best for you.

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Favicon of OpenNotas

OpenNotas

OpenNotas is a multi-platform, end-to-end encrypted note-taking app that offers simplicity, synchronization, and offline functionality.
178stars+3(+1.7%)

Last 30 days

Sponsor OpenNotas ongithub.com
Screenshot of OpenNotas
Favicon of SiYuan

SiYuan

Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
45,943stars+552(+1.2%)

Last 30 days

Sponsor SiYuan onld246.com
Screenshot of SiYuan

Detailed Comparison

SiYuan appears to have several advantages over OpenNotas, particularly in popularity, maturity, licensing and features. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

SiYuan wins
Community & Popularity

SiYuan significantly outpaces OpenNotas in community adoption with 45,943 stars compared to 178 stars on GitHub. This 258.1x difference suggests SiYuan has a much larger and more active community. In terms of developer contributions, SiYuan has 2,960 forks, indicating strong developer engagement.

OpenNotas wins
Growth Momentum

OpenNotas is growing faster, adding 3 stars in the last 30 days (+1.7%) against adding 552 stars for SiYuan (+1.2%). OpenNotas is the smaller project of the two, so it is closing the gap rather than extending a lead.

Comparable
Development Activity

Both projects show recent activity, with OpenNotas last updated 18 days ago and SiYuan 9 hours ago.

Comparable
Technology Stack

Both tools share common technology foundations, being built with JavaScript, CSS, Typescript. However, they differ in their additional technology choices: OpenNotas uses Vue, Nuxt.js while SiYuan leverages Bash, Python, SCSS, Golang.

SiYuan wins
Project Maturity

SiYuan has been in development longer, starting 6 years ago, compared to OpenNotas which began 2 years ago. This 3.7-year head start suggests SiYuan may have more mature features and established processes.

SiYuan wins
Licensing

SiYuan is licensed under AGPL-3.0, while OpenNotas's license terms are not publicly specified.

Comparable
Use Cases & Features

Both tools serve similar use cases in Note-Taking, Personal Knowledge Management (PKM). However, they also have distinct specializations: OpenNotas also focuses on Secure & Encrypted Notes.

SiYuan wins
Hosting & Deployment

SiYuan provides self-hosting options for complete data control and customization, while OpenNotas may be primarily cloud-based or require different deployment approaches.