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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SiYuan appears to have several advantages over OpenNotas, particularly in popularity, maturity, licensing and features. Consider your specific needs regarding popularity, activity, technology, maturity, licensing and features when making your decision.
SiYuan significantly outpaces OpenNotas in community adoption with 42,949 stars compared to 171 stars on GitHub. This 251.2x difference suggests SiYuan has a much larger and more active community. In terms of developer contributions, SiYuan has 2,720 forks, indicating strong developer engagement.
Both projects show recent activity, with OpenNotas last updated 19 days ago and SiYuan 13 hours ago.
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 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 is licensed under AGPL-3.0, while OpenNotas's license terms are not publicly specified.
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 provides self-hosting options for complete data control and customization, while OpenNotas may be primarily cloud-based or require different deployment approaches.
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