Photo to Pencil Sketch

Turn any photo into a pencil sketch drawing. Adjust sketch detail and line darkness live. Free, private, and instant: your image stays in your browser and is never uploaded.

Upload a photo

Sketch Options

10
30%

Classic pencil-sketch algorithm

Uses the grayscale → invert → blur → color-dodge pipeline — the same technique professional editors use to simulate pencil drawings from photos.

Adjustable detail and line weight

The Sketch detail slider controls how fine or coarse the pencil lines are. The Line darkness slider adds weight to the strokes, from a light sketch to bold lines.

100% private

Your photo is processed entirely in your browser using the Canvas API — nothing is ever uploaded to a server.

How to convert a photo to a pencil sketch

1

Upload your photo

Drag and drop or click to select a JPG, PNG, or WebP image.

2

Adjust sketch detail

Move the Sketch detail slider left for finer lines, right for a bolder, looser stroke.

3

Set line darkness

Increase Line darkness to make the pencil strokes heavier and more visible.

4

Download

Click Download Sketch to save your pencil drawing as PNG or JPG.

Frequently asked questions

How does the photo-to-sketch effect work?

The tool converts your photo to grayscale, inverts it, applies a gaussian blur, then blends the blurred layer back using a color-dodge composite mode. The result looks like a pencil drawing on white paper.

What does the Sketch detail slider do?

It controls the blur radius in the pipeline. A low value (left) produces fine, detailed lines. A high value (right) produces a looser, broader sketch style with fewer visible strokes.

Are my photos uploaded to a server?

No. Everything runs entirely in your browser on your device. Your photo never leaves your computer, so it stays completely private.

Is this tool free?

Yes — completely free and unlimited. No signup, no account, no watermark, no daily limit.

What image formats can I upload?

You can upload JPG, PNG, and WebP images. Download the result as PNG (to keep transparency) or JPG for a smaller file size.

Sketch another photo

Drop in a new photo to create another pencil sketch — free and unlimited, no signup required.

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Why this page exists

Convert any photo to a pencil-sketch drawing with adjustable detail and line darkness. Runs entirely in your browser — nothing is uploaded.

Best for

  • Turning portraits into pencil-style illustrations
  • Creating hand-drawn-looking art from photographs
  • Stylizing photos for social media, prints, or gifts