// file vault

Your notes, interconnected.

Open any folder of Markdown files as a vault. Wikilinks, backlinks, tags, callouts, image embeds, and a live knowledge graph - all built in. Works alongside Obsidian on the same vault.

Knowledge Graph

See the big picture

Every link between your notes is visualized in a force-directed graph. Hover to explore, click to navigate, drag to rearrange. Pop it out into a floating window with Tour Mode to cycle through nodes automatically.

• [[wikilinks]] with auto-resolution and hover preview
• Backlinks panel shows all files that link here
• Tags as styled pills - extracted from body text and YAML frontmatter
• Image embeds with ![[image.png]] syntax
• 12+ callout block types: note, tip, warning, danger, info, success, question, quote
• Quick Switcher - search and jump between vault files instantly
• Drag .md files from sidebar to insert [[wikilinks]], drag images to embed
• Dataview query blocks rendered as styled info boxes

// rendering engine

LaTeX, Mermaid, HTML - all native.

Write math equations, create diagrams, embed styled HTML - and see it all render live in the preview. What you see is exactly what exports.

Zero Dependencies

No Pandoc. No LaTeX install. No plugins.

KaTeX renders math natively. Mermaid renders diagrams to SVG. Inline HTML and CSS render exactly as written. All in a sandboxed macOS app with nothing to install.

• KaTeX math - inline $...$ and display $$...$$
• 16 Mermaid diagram types - flowchart, sequence, class, state, gantt, pie, ER, mindmap, timeline, git graph, XY chart, C4, sankey, quadrant, kanban, tree map
• Inline HTML/CSS - text colors, alignment, sizes, backgrounds, borders, underlines
• Footnotes with automatic bottom-of-page placement
• YAML frontmatter - parsed and hidden from preview
• Diagrams render as SVG in PDF, PNG in DOCX, interactive in HTML export

Expanded Graph

Explore your connections

Pop the graph into a floating window for a panoramic view of your entire vault. Nodes scale by connection count, edges light up on hover, and the whole thing orbits gently in a slow, satisfying drift.

• Force-directed physics simulation
• Pinch to zoom, scroll to pan
• Click nodes to open files
• Double-click to reset layout

// ai workspace

AI that writes with you.

Apple Intelligence works out of the box on macOS 26+ — no API keys, no setup. Or connect any local or cloud model. Your choice.

Apple Intelligence + Bring Your Own Model

On-device AI, or any model you want.

On supported hardware, Apple Intelligence runs entirely on-device with zero configuration. For heavier tasks, connect Ollama, LM Studio, Claude, OpenRouter, or any OpenAI-compatible endpoint.

• Apple Intelligence - on-device, no API keys, no downloads, works immediately (macOS 26+)
• Stream-to-editor mode - AI types directly at your cursor in real-time
• Quick Actions (⌘J) - summarize, rewrite, explain, change tone on selected text
• Attach files as context - .md, .txt, .csv, .json, .pdf, and more
• Context badge - view and edit scraped content, add persistent Notes
• Auto-detects local services: Ollama, LM Studio, MLX, vLLM
• Cloud: OpenRouter (free + paid models), Claude (native Anthropic API)
• ⌘Z undoes entire AI insertion as a single undo group

// the editor

Your writing environment, your way.

Three view modes, 15+ syntax themes, scroll sync, an outline sidebar, and a comprehensive insert menu - all tuned for Markdown.

Editor

Write, preview, or both

Switch instantly between Editor Only (⌘1), Split View (⌘2), and Preview Only (⌘3). The editor adapts to how you work.

• 15+ syntax themes - Nabu Dark/Light, Atom One, Monokai, Dracula, Nord, Solarized, and more
• System mode auto-switches between Nabu Light and Nabu Dark
• Scroll Sync - line-based (accurate) or percentage-based (smooth)
• Outline Sidebar (⌘⇧O) - navigable heading list, color-coded by level
• Insert Menu (+ button) - headings, lists, code blocks, tables, 16 Mermaid diagram types, CSS styles
• Line numbers toggle, resizable sidebar (drag to resize)

// hex color picker

See your colors. Change them live.

Every hex code in your document gets an inline color swatch. Option-click to open the system color picker and edit colors in place.

Color Tools

Inline swatches. One-click editing.

The # symbol renders as a colored block matching the hex value. Option-click to open the system color picker, or Option-click anywhere to insert a new color at the cursor.

• Option-click any hex code - opens system color picker
• Option-click elsewhere - inserts a new hex color at cursor
• Picker stays open for multiple inserts - move cursor and pick again
• Works with 3, 4, 6, and 8 character hex codes
• Tags like #a9c7ff render as colored pills in preview

// document map

Every page at a glance.

A zoomable grid of your entire document. Navigate large PDFs instantly, spot formatting issues across pages, and fine-tune your export settings.

PDF Power

Live PDF preview. Full export control.

Edit and see your PDF update in real-time (⌘P). Click the grid icon to see all pages at once. Zoom with ⌘+/⌘-.

• Zoomable page grid - click any page to jump to it
• Live PDF preview updates as you type
• [pagebreak] - force clean page breaks before headings, tables, or images
• Paper size - Letter, A4, Legal, A3, A5, and custom dimensions
• Orientation - portrait or landscape for wide tables
• Margins, font size scale, page numbers (Arabic, Roman, or letters)

// voice notes & media

Record, transcribe, embed anything.

Voice notes with on-device transcription, plus inline embeds for audio, video, PDFs, and YouTube — all from a single ![[file]] syntax.

Voice & Media

Speak it. Embed it. Play it back.

Click the mic button in the editor toolbar for three recording modes. Media files embed inline with full playback controls.

• Record Voice Note - saves .m4a to vault, inserts audio player
• Record & Transcribe - records audio, then auto-transcribes with on-device speech recognition
• Live Dictation - speak and text appears in real time, no audio file saved
• ![[recording.m4a]] - inline audio player
• ![[clip.mp4]] - inline video player
• ![[document.pdf]] - scrollable PDF viewer
• ![[data.csv]] - rendered HTML table
• ![[doc.rtf]] - formatted rich text
• ![[notes.md]] - rendered Markdown with full formatting
• YouTube links auto-embed as click-to-browser cards
• All media encodes into portable HTML exports

// slides & flash cards

Present it. Study it.

Turn any document into a slideshow or a flash card deck. Spaced repetition tracks what you know. Ask AI to format your notes for you.

Slides & Flash Cards

Play your document. Study your notes.

Click the play button and choose Play as Slides or Flash Cards. Documents split by --- dividers or headings. Flash cards use ??? to separate question from answer.

• Slides - auto-play, shuffle, three layout modes (Standard / Wide / Card)
• Flash Cards - click or Space to reveal answer, rate with 1-4 keys
• Spaced repetition (SM-2) - cards you struggle with come back sooner
• Mermaid diagrams and KaTeX math render on slides
• Auto-generated title slide from YAML frontmatter
• Zoom in/out (50%-200%), fullscreen, keyboard navigation
• Progress saved per-document, persists between sessions
• Format with AI - one click restructures your doc into slides or flash cards

// focus & templates

Distraction-free. Instant start.

Strip away everything but your words, or jump-start a new document from a built-in or custom template. cyberWriter adapts to how you write.

Writing Flow

Just you and your words

Press ⌘⇧F and all toolbars and chrome vanish. Your content centers on screen. Move your mouse to reveal controls when needed.

• Focus Mode (⌘⇧F) - all UI disappears, centered content
• Toggle preview visibility while in focus mode
• 5 built-in templates + save your own with File > Save as Template
• Custom templates appear in the template picker on new documents
• Smart filename suggestion from your first heading
• Drag & drop .md files onto the window or dock icon to open

// preview themes

Five built-in looks. Infinite custom ones.

Choose a preview theme for how your document looks in the preview and in exports. Or build your own with full control over colors, fonts, and typography.

Themes

Your document, your style

Switch between five built-in themes or create unlimited custom ones. Every theme applies to both preview and exported documents.

• Academic - white, formal. Papers, theses, reports.
• Modern - white, clean. Tech docs, READMEs.
• Sepia - warm cream. Long-form reading, books.
• Night - dark gray. Dark-mode PDFs, reduced eye strain.
• Synthetic Editorial - deep navy. Modern dark aesthetic.
• Custom - full control: colors, fonts, font size. System color picker with palettes, sliders, and color wheel.
• Right-click any theme to duplicate as a custom starting point

// find & replace

Find anything. Replace everything.

Quick inline search or a full results panel with line numbers, context preview, and one-click navigation.

Search

Two modes. Zero friction.

Press ⌘F for quick inline search with highlighted matches. Press ⌘⌥F for Enhanced Find with a scrollable results list.

• Quick Find (⌘F) - inline search bar, highlighted matches, arrow navigation
• Enhanced Find (⌘⌥F) - results list with line numbers and context preview
• Click any result to jump directly to that location
• Replace mode - replace one or replace all with confirmation

// all features

Everything, built in.

No plugins to install, no extensions to manage. Every feature ships in the app.

// export

Your words, any format.

Export to PDF, Word, or HTML with customizable margins, fonts, and page settings. All generated natively - no external tools required.

// keyboard shortcuts

Built for keyboard-first workflows.

Every major action has a shortcut. No mouse required.

// pricing

Simple. Honest.

// contact

Get in touch.

Bug reports, feature requests, or just want to say hi - drop a message.