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Controls
Radim Brnka edited this page Jan 10, 2026
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21 revisions
| Mandelbrot | Julia |
|---|---|
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Each of these buttons also has a respective hotkey.
| Button | Action |
|---|---|
Mandelbrot/Julia |
Switches between Mandelbrot and Julia fractals. When pressed with Ctrl, the fractal variables are persisted so you can see the equivalent sets. (Z) |
Presets |
Pre-programmed interesting zooms for you to explore (Num 0-9) |
Dives |
Pre-programmed animated loops for you to explore (Julia only) (Shift+Num 0-9) |
cx/cy |
Sliders to adjust the C value (Julia only) (Alt+Arrows) |
Reset |
Resets current fractal to default view (Shift+R) |
Recolor |
Randomizes color palette (Mandelbrot mode) / Switches color palette to the next predefined theme (Julia only) (T) |
Screenshot |
Takes a screenshot of the canvas without the controls. Includes watermark of the current coordinates. (Shift+S) |
Demo/Stop |
Enables demo mode / Stops current animation (D) |
Bottom bar click |
Copy full current coordinates to clipboard |
| Mouse Button | Action |
|---|---|
Left Button Drag |
Pan |
Right Button Drag |
Rotate |
Wheel |
Zoom |
Left Button Single Click |
Center & Generate URL link |
Left/Right Button Double click |
Zoom-in/out & Center |
Middle Click |
Toggle guiding lines |
| Key | Action |
|---|---|
F11 |
Toggle fullscreen |
Enter |
Toggle controls |
Q / W |
Rotate counter-clockwise/clockwise (Shift: Slower speed) |
E |
Toggle guiding lines |
Shift + R |
Reset |
T |
Randomize color palette, (Shift: Cyclic color change, Alt: Reset colors) |
Shift + S |
Take screenshot |
Space |
Zoom-in (Option/Ctrl: Zoom-out, Shift: Smoother step) |
A |
Force resize |
Z |
Switch fractals with persisting params (Shows respective fractal counterpart). Julia C translates to Mandelbrot P and vice versa. (Ctrl + Switch Fractal Mode Button has the same effect) |
Left / Right |
Horizontal pan (Shift: Smoother step) |
Up / Down |
Vertical pan (Shift: Smoother step) |
Alt + Left / Right |
Real part (cx) stepping (Julia only) (Shift: Smoother step) |
Alt + Up / Down |
Imaginary part (cy) stepping (Julia only) (Shift: Smoother step) |
Num 1-9 |
Load Preset (Shift: Start dive in Julia mode) |
| Key | Action |
|---|---|
One Finger Pan |
Pan |
One Finger Tap |
Center & Generate URL link |
One Finger Double-tap |
Zoom-in/out & Center |
Pinch / Spread |
Pan & Zoom & Rotate |
By Radim Brnka © 2025-2026

