Filters

The filter button opens a panel with a live histogram and sliders grouped by purpose — brightness, contrast, saturation, hue, blur, grayscale, sepia — plus named presets (B&W, sepia, vintage, warm, cool). Double-click a slider to reset it. Filters are non-destructive (a CSS filter, stored as a filter="…" block) and exported into the pixels on Export.

Original

Grayscale

Sepia (the "sepia" preset)

Brighter + more saturated

Hue-rotated (the blue sky shifts)

Blur

Filter + transform together

Grayscale on a 90°-rotated image — content filter and orientation are independent.