Turn a Photo into a Pencil Sketch Online
Apply grayscale, sepia, invert and pencil sketch effects to photos with an intensity slider — locally in your browser.
Processed entirely in your browser — nothing you enter here is ever uploaded.
Result
About this tool
This page opens the photo filter tool with the sketch effect already selected — drop in your picture, adjust the intensity and download a pencil-style drawing.
The effect is honest image processing, not AI: the photo is converted to grayscale, lightly smoothed, run through Sobel edge detection and inverted, so outlines appear as dark strokes on paper-white. Photos with clear contours and good contrast produce the most convincing sketches; the intensity slider lets the original show through for a half-drawn look.
The full tool also offers grayscale, sepia and color inversion. Everything is processed locally in your browser, so your photos never leave your device.
Example. Grayscale at full intensity rewrites each pixel from its red, green, and blue channels into a single gray level, and the slider blends that result back toward the original.
Limit. The effect list is grayscale, sepia, invert, and pencil sketch only.