Inkwell is unclaimed —

Inkwell

the sovereign markdown editor·inkwell.4worlds.dev

Free plan · Not open source See pricing ↓

Inkwell is a lightweight, offline-first Markdown editor built with Tauri and Rust that works entirely without an internet connection. It has no cloud sync, no telemetry, and no accounts, storing all files locally via SQLite. The free editor includes themes, a workspace file tree, Mermaid diagrams, and LaTeX math, while a one-time Pro purchase unlocks PDF and HTML export.

What it's for

Writing and editing Markdown documents offlineRendering Mermaid flowcharts, sequence diagrams, and Gantt charts in live previewWriting inline and block LaTeX math equationsExporting documents to PDF with professional typography (Pro)Exporting documents to standalone offline-capable HTML (Pro)Browsing and organizing .md files via a workspace file treeTracking document history and restoring prior versions

Features 20

10 built-in templates plus custom templates
4 hand-tuned themes (Editorial, Midnight, Mono, Sepia)
40 MB or less binary, launches in under 1 second
Auto-save to local SQLite store
Command palette (Ctrl+K) with fuzzy search
Custom theme creator with 6 color pickers
Custom title bar
File association handling (double-click .md to open)
Find and replace
Focus mode
HTML export with standalone offline-capable files (Pro)
LaTeX math via KaTeX (inline and block)
Mermaid diagram rendering (flowcharts, sequence diagrams, Gantt charts)
PDF export via Typst engine (Pro)
Recent files (last 8)
Split-view markdown editor with live preview
Table of contents auto-generated from headings
Typewriter mode
Version history with diffs, auto-snapshots every 5 minutes
Workspace file tree

At a glance

free tier

TypeDesktop app

DeploymentInstalled (local)

PlatformsWindows, macOS, Linux

Fororganizations with 5 or more employees

Company4Worlds

Integrations

MermaidTypstKaTeX

Pricing

Pro is a $19 one-time purchase (not a monthly subscription), so no monthly-equivalent price is stated. Business tier is quote-based for teams of 5+.

FreeFree

Free forever, no account required.

No PDF or HTML export

ProQuote

$19 one-time purchase via Gumroad. No subscription, no recurring fees, license never expires.

One-time purchase per individual license

BusinessQuote

Quote-based team licensing; contact studio@4worlds.dev.

For organizations with 5 or more employees