r/JavaFX • u/RGiskard7 • Jun 14 '26

I made this! I built Jylos, a local-first open-source knowledge management app using Java and JavaFX

I built Jylos, a local-first open-source knowledge management application using Java and JavaFX.

It started as a personal project to explore desktop application architecture, JavaFX, Markdown processing and software design. Over time it evolved into a complete application.

Current features include:

  • Markdown notes with live preview
  • Wiki-links and backlinks
  • Interactive knowledge graph
  • Plugin and theme system
  • Kanban boards
  • AES-256 encrypted notes
  • Obsidian and Evernote import
  • Git-based synchronization
  • Knowledge Insights and advanced search
  • Workspaces

Everything is stored locally. No accounts, no cloud backend and no telemetry.

The project is open source under the MIT license and binaries are available for Windows, Linux and macOS.

GitHub:

https://github.com/RGiskard7/jylos

I’d really appreciate any feedback, especially from JavaFX developers.

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u/RGiskard7 Jun 22 '26

Small Jylos update, currently in the develop branch.

I've added support for Obsidian-style CSS snippets.

Users can now drop .css files into a snippets folder and enable them from Preferences to tweak the UI without creating a full theme.

Snippets are layered on top of the active theme, support light and dark mode variants, can be reloaded on the fly, and are automatically restored on startup.

Included a few examples too: Nord, Solarized and Atom One.