Manual HDR / Layer Mixer

Upload 3–10 images, crop, reposition, rotate, snap-align, zoom, and export.

Create one flattened image from all uploaded source images with manual layer control, project JSON save/load, and PNG/JPG export.

1. Upload images

2. Layer controls

Canvas

Canvas width Canvas height

Editor zoom

60%

Snapping & resize options

Snap to canvas center Snap distance Lock aspect ratio while resizing

When a layer is near the canvas center, it locks to the horizontal/vertical center guide. Ratio lock keeps images proportional when resizing.

Export

Format JPG quality 90%

History & project JSON

Load project JSON

The JSON stores canvas size, export settings, layer positions, crop, rotation and order. Load it after uploading the same images. Keyboard shortcuts: Ctrl/Cmd + Z for undo, Ctrl/Cmd + Shift + Z or Ctrl/Cmd + Y for redo.

3. Live preview

Drag a layer to move it. Use the bottom-right handle to resize it and the top handle to rotate it. Center guide lines appear while snapping.