Open sourceA local-first writing tool

Inkstone
A place for your thoughts

A quiet, local Markdown editor.
From a one-line note to equations, diagrams and the finished piece.

Build for Linux ↗ Windows / Linux · Local files · Core writing works offline
Platform
Windows x64 · Linux
Files
Local .md files, kept as written
Account
No sign-up, no cloud
Interface
English / 简体中文 · Light / Dark
License
Open source, AGPL-3.0
Actual interface · English · Light theme 1280 × 900
A quieter place.md — Inkstone
Inkstone writing view: file sidebar on the left, a document with an equation and a table on the right 1 2 3 4

1File sidebar

Files, outline and search, working directly on the folders on your computer.

2Typography

A comfortable measure and line height; mixed English and Chinese stay clear.

3Inline math

Equations sit inside the sentence. Click one to edit it in place.

4Tables

Edit tables right on the page, without a trip back to source.

Features

01 — 03
01Live preview · Source mode

Writing,
naturally.

Write Markdown directly on the page and watch headings, lists and equations take shape as you type. Click a rendered equation to edit its source in place. When you want every character in view, switch to source mode; your selection and undo history come with you.

Shortcut
Ctrl + /  Live preview ⇄ Source
Original
Kept as written, no silent reformatting
Live previewClick an equation to open its source
Ctrl+/switches the whole document
Source modeThe same passage, as plain Markdown
Code · Tables · Math blocksIn one document
Mermaid diagramsequenceDiagram
02Math · Tables · Code · Diagrams

Thinking,
with structure.

Inline math and LaTeX blocks, tables you edit in place, syntax-highlighted code and Mermaid diagrams all live in the same Markdown file, and all render clearly on the page.

Math
Inline $…$ and display $$…$$
Code
Syntax highlighting, language picker
Diagrams
Mermaid flowcharts, sequences and more
03Local files · Offline · Export

Your files,
close at hand.

Open any folder on your computer; your documents are ordinary .md files. No account, nothing uploaded, and writing keeps working offline. When you are done, export to HTML, PDF or PNG.

Files
Folders · search · autosave · recovery
Offline
Core writing needs no connection
More formats
Optional Pandoc for Word and more
The folder in Inkstone
The same folder on disk
Field notes/ ├── assets/ ├── Research/ │ └── Writing rituals.md ├── A quieter place.md └── Reading list.md
Plain .md files that open in any editor.
HTMLOffline export
PDFOffline export
PNGOffline export
DOCX …Via Pandoc

Your next piece starts here.

Open source, local and quiet. Get the Windows installer, or build for Linux from source.

Windows x64 installer · .exegithub.com/JhuoW/Inkstone