JNote

PUBLIC BETA · VERSION 0.14.0

Keep technical Markdown in the file where it belongs.

A local-first desktop Markdown editor for technical writers, developers, and keyboard-driven workflows.

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No account. No import step. Beta participation is optional.

JNote comparing an open Markdown document with changes made on disk
Review external file changes before choosing what to keep.

ONE LOCAL FILE, TWO EDITING MODES

Technical writing without a format detour

  • Switch between block editing and Markdown source editing over the same local file
  • Fall back to source mode when block editing cannot safely handle a document
  • Support tabs, Vim, task lists, tables, code blocks, and Mermaid/PlantUML previews
  • Provide multi-language syntax highlighting, keyword completion, and expandable templates in code blocks
A Mermaid diagram rendered beside its Markdown source in JNote
Write diagrams alongside the document they explain.

WATCH REAL RECORDINGS

Short clips from the desktop app

Short clips from the desktop app. To try JNote yourself, download it — your files stay on your machine.

Block editing over a real .md file

WYSIWYG, but the file is still Markdown

Edit headings, lists, and tasks on the page. What you save is still clean Markdown any other editor can read.

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Mermaid from an empty code block

Diagrams live in the document

Start from an empty Mermaid block, write syntax on the left, and watch the diagram update beside it.

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JavaScript template expansion in a code block

Code is a first-class citizen

Short triggers offer completions; one Tab expands a template you can keep editing as ordinary code.

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Multi-tab local workspace

Tabs over your own files

Open several local Markdown files at once. Paths stay on your disk — nothing is uploaded to try this out.

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Editor versus disk, side by side

External changes, your call

When a file changes outside JNote, you get a line-level diff and choose keep or reload — never a silent overwrite.

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Dark theme for long sessions

Fits the setup you already use

Themes follow light and dark environments so long writing sessions stay readable.

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Download for Windows All packages

Local files only. No account. No cloud import.

CAPTURED FROM THE REAL APPLICATION

A one-minute product tour

DOWNLOAD JNOTE 0.14.0

Use the package that fits your machine

Every package comes from the public JNote GitHub Release. Source archives are not installers.

UBUNTU / DEBIAN · AMD64

Deb package

For Debian-family package managers.

Download .deb
Verify with SHA256SUMS.txt

OPTIONAL, INVITE-ONLY SUPPORT

Apply for the private beta group

You do not need to be an existing customer. Tell us about a real Markdown workflow and your operating system. Approved applicants receive a private Discord invitation by email.

Email beta@jnote.app