Brush, Eraser, Fill & Eyedropper — Free Paint Tools Online

Sometimes you don’t need a full filter — you need a stroke, a clean fill, or the exact color from a pixel. Photo Editor Studio ships a paint toolkit: Brush, Eraser, Fill, and Eyedropper, with size and hardness controls that behave like a lightweight desktop editor.

Brush

Draw freehand strokes as their own layers. Soft hardness lowers stroke opacity for smoother blends; hard brushes stay crisp for markup and signatures.

Eraser

The eraser uses destination-out compositing — it removes pixels from content below instead of painting white over them. That matters when your canvas background is transparent or you need clean cutouts.

Fill

Fill sets the canvas background color in one click (or from the Fill canvas button). You can also switch the background to transparent for PNG exports with a checkerboard preview.

Eyedropper

Click anywhere on the canvas to sample a color. Studio switches back to the brush with that color loaded — perfect for matching brand hues or cloning tones from a photo.

Quick workflow

1. Open Studio and load an image.
2. Use Eyedropper to pick a color from the photo.
3. Switch to Brush, set size/hardness, and paint accents or highlights.
4. Use Eraser to clean edges on overlays or frames.
5. Fill the canvas background before exporting a solid JPG, or keep transparent for PNG.