Think out loud.

A macOS scratchpad for the thoughts that don’t have a home yet. Jot down tasks, questions, ideas, or code — start a line with one character and everything organizes itself.

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One character. Instant structure.

Start any line with a symbol to say what it is. No menus, no formatting buttons, no extra steps.

You type

# Project Notes

You see

Project Notes

These are the basics. When you’re ready, unlock more.

Everything you need. Nothing extra.

Fast, focused, and designed to get out of your way.

Start Simple

Mudlark starts you with 8 intuitive symbols. When you’re ready for more, long-press the lock icon to unlock the full set — numbered lists, code, math, timers, and more.

Quick Capture

Jot something down from anywhere with a keyboard shortcut, or automate it with the mudlark:// URL scheme. Your thought goes straight to your note without switching windows.

Dual-Pane View

Write freely on the left. See your notes cleaned up and organized on the right. Two sides, one document.

15 Themes

From Paper to Tokyo Night, Solarized to Catppuccin. Pick from seven light and eight dark themes, each with its own color palette.

Math & Timers

Do quick math right in your notes. Convert between units like km to miles. Set countdown or looping timers to stay on track.

Export Everywhere

Auto-export to Obsidian, Logseq, iA Writer, Bear, Drafts, or Apple Notes. Or just copy to the clipboard.

Ephemeral by Design

Mudlark is where thoughts start, not where they live forever. Capture fast, organize later, move on when ready. Auto-cleanup is built in.

Choose your canvas.

15 themes with hand-picked colors. Each one gives your notes a different look and feel.

System Light
Paper
Solarized Light
Rosé Pine Dawn
Nord Light
Catppuccin Latte
Verdant
System Dark
Tokyo Night
Solarized Dark
Dracula
Catppuccin Mocha
Rosé Pine
Midnight
Ember

The starting point, not the destination.

When your notes are ready to live somewhere permanent, send them to your favorite app.

O
Obsidian
B
Bear
D
Drafts
N
Apple Notes
C
Clipboard

Ready to think out loud?

Available for macOS. Free to try.