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Limn

github.com

WebmacOSBrowser extension
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Spec score 7.7 #54 of 72 in Mind Mapping Software

Spec sheet

Product
Limn is a keyboard-first, offline-capable mind-mapping progressive web app.Read 12 Oct 2026 · github.com
Supported platforms
web,macosRead 20 Sep 2026 · github.com
Free plan
YesRead 20 Sep 2026 · github.com
Support
The repository provides a contributing guide and GitHub Issues for project feedback; it does not state a support service or response commitment.Read 11 Oct 2026 · github.com
License
The repository provides the software under the MIT License.Read 12 Oct 2026 · github.com
Canvas
The app renders maps as SVG and supports panning, zooming, node positioning, and layout reflow.Read 12 Oct 2026 · github.com
Cross-tab sync
Browser tabs opened on the same local document URL stay in sync through BroadcastChannel.Read 12 Oct 2026 · github.com
Data-loss limitation
Clearing browser data, including IndexedDB, deletes locally stored documents.Read 12 Oct 2026 · github.com
Desktop platform
The repository documents a native macOS app built with Swift and SwiftUI that wraps a WKWebView and is distributed as a DMG through GitHub Releases.Read 11 Oct 2026 · github.com
Desktop signing
The desktop app's release can be unsigned if signing secrets are not configured, in which case users must right-click and Open to bypass Gatekeeper.Read 11 Oct 2026 · github.com
Editing
Keyboard shortcuts create child and sibling nodes, edit text, delete nodes, collapse branches, and reorder or reparent nodes.Read 12 Oct 2026 · github.com
Export
The README lists a keyboard shortcut to export mind maps as SVG.Read 11 Oct 2026 · github.com
Export formats
SVG,.limnRead 20 Sep 2026 · github.com
File format
A .limn file is a ZIP bundle containing data.json and an assets directory for images.Read 12 Oct 2026 · github.com
Formatting and links
Node text supports bold, italic, code, strikethrough, and clickable Markdown links.Read 12 Oct 2026 · github.com
Keyboard navigation
Arrow keys or hjkl navigate between nodes, and semicolon opens EasyMotion labels for jumping to a visible node.Read 12 Oct 2026 · github.com
Local storage
Browser documents are stored in IndexedDB, and the README states that nothing is sent to a server.Read 12 Oct 2026 · github.com
macOS app
Limn has a native macOS app built with Swift and SwiftUI around WKWebView, distributed as a DMG through GitHub Releases.Read 12 Oct 2026 · github.com
macOS distribution
The desktop documentation says signed distribution requires an Apple Developer account and that an unsigned DMG can still be downloaded.Read 12 Oct 2026 · github.com
Obsidian installation
The README says users can install Limn from Obsidian's Community Plugins directory or use BRAT for the latest unreleased build.Read 11 Oct 2026 · github.com
Obsidian integration
The Obsidian plugin uses Obsidian's vault API for persistence and stores legacy image assets in a sidecar .limn-assets folder.Read 12 Oct 2026 · github.com
Obsidian plugin
Limn is also available as an Obsidian community plugin that opens .limn files as interactive mind map views.Read 12 Oct 2026 · github.com
Offline mode
YesRead 20 Sep 2026 · github.com
Persistence
The web app stores data locally in browser IndexedDB, autosaves, syncs matching documents across tabs, and sends nothing to a server, according to the README.Read 11 Oct 2026 · github.com
Saving and export
Users can save and open .limn files and export maps as SVG.Read 12 Oct 2026 · github.com
Text formatting
Node text supports inline Markdown for bold, italic, code, strikethrough, and clickable links.Read 11 Oct 2026 · github.com

Where Specifiction places it

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