Live Preview editor
Your knowledge, local and yours.
A local-first desktop app for Markdown notes, wiki-links, backlinks, knowledge graphs, Kanban, Canvas, plugins and Git sync.
MIT LicenseJava 21JavaFX 23Local-firstOfflineSQLite or Markdown vaultWindows · macOS · Linux
Free and MIT-licensed — no account, no cloud, no telemetry
Download
Get Jylos
Packages for the current release for Windows, macOS and Linux — plus a JBang launcher if you prefer to run it without installing.
Run instantly with JBang
jbang jylos@RGiskard7/jylosJBang downloads Java 21 and JavaFX automatically if needed. No build required.
Features
More than a notes app
Notes, wiki-links, a knowledge graph, Kanban, Canvas, plugins and Git — all offline.
Markdown Editor
WYSIWYG: type Markdown and it renders as you type — GFM tables, KaTeX math and emoji.
Wiki-links
Wiki-link autocomplete, backlinks panel and click-to-open navigation between notes.
Knowledge Graph
Interactive force-directed graph. Zoom, pan, drag nodes, local neighbourhood views.
Canvas & Kanban
Obsidian-compatible Canvas boards and Kanban workflows for projects and planning.
Git Sync
Stage, commit, push and pull from a unified panel. Full Git integration in vault mode.
AES-256 Encryption
Encrypt note bodies with AES-256-GCM behind a master password, with delete protection.
Storage Freedom
SQLite database or plain Markdown vault. Switch anytime, your choice.
Plugins & Themes
Plugin JARs, Mermaid diagrams, CSS themes, snippets and a plugin manager.
Advanced Search
Operators, date shorthands, command palette and quick switcher.
Workspaces
Save and restore open tabs, view state and layout per context.
Editor
Write in Markdown, read it rendered
Built on CodeMirror 6, it renders as you type — true WYSIWYG. You see GFM tables, KaTeX math, emoji and `![[embeds]]` live, while the Markdown source stays available when you want it.
Knowledge graph
A map of every link in your notes
A force-directed graph built from your wiki-links. Zoom, pan and drag, open any note with a click, and switch between the whole vault and the local neighbourhood of the note you are reading. Knowledge Insights also reports orphan notes, broken links and a graph health score.
Organize
Kanban and Canvas, in plain notes
A board is just a note whose headings are columns and its list items are cards — drag cards across columns, set WIP limits and colors. The Canvas editor opens Obsidian-compatible `.canvas` files on an infinite surface.
Extensible
Plugins, themes and snippets
Dataview, MCP Server and Publish ship built-in; drop external JARs into the plugin folder to add commands, side panels, preview enhancers and toolbar buttons. CSS themes and snippets restyle the app.
Power features
Ask your notes, connect your AI, publish your vault
Three built-in tools that go beyond note-taking — on by default.
Dataview
Query your notes' metadata like a database. A dataview block renders live in the preview.
- TABLE / LIST / TASK queries, with FROM, WHERE, SORT, GROUP BY, FLATTEN and LIMIT
- Reads frontmatter, inline key:: value fields, tags and the implicit file.* attributes
- Inline = expression results anywhere in a note's text
MCP Server
Exposes your vault to Claude Desktop, Claude Code and any Streamable HTTP MCP client over a local server.
- Search notes, read full content, create notes and replace a note's body
- Runs entirely on your machine — no cloud round-trip, no vault upload
- Read-mostly by design: no irreversible delete exposed to clients
Publish
Exports the whole vault to a self-contained static site — ready for GitHub Pages or any static host.
- Wiki-links become real relative links; an interactive graph, full and per-note
- Folder tree, live search and a picker to choose exactly what gets included
- Publish just one changed note to update an already-live site
Documentation
Learn the app, then make it yours
Guides and technical docs live with the code, so behaviour and guidance evolve together.
Install and get started
Download Jylos, run it for the first time and create your first notes.
Notes, links and the graph
How notes, wiki-links, backlinks, Kanban, Canvas and Git work together.
Capture, plan, publish
Write and link notes, organize with Kanban, and publish your vault as a static site.
Technical reference
Architecture, plugins, storage and event contracts for contributors.
Principles
Local-first by design
Everything stays on your machine — plain files, open formats, no cloud, no tracking.
Stored locally
SQLite or plain Markdown files on your disk. Your notes never leave your computer.
No account, no telemetry
No sign-up, no login, no analytics.
No cloud backend
There is no server to call. Ever.
Open source (MIT)
Audit the code, modify it, contribute back.
Markdown-native
Plain text with YAML frontmatter, no proprietary lock-in.
Cross-platform
Windows, macOS and Linux.
Open source and actively maintained
Jylos is released under MIT and built with Java 21 and JavaFX 23. Issues, feedback and pull requests are welcome.
Contribute on GitHub© 2025–2026 Eduardo Díaz Sánchez (RGiskard7)