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Photo to Pencil Sketch

Turn a photo into line art or a pencil-shaded drawing. Tune the Sobel edge detection, switch to hatching, and compare the result with the original — all offline, in your browser.

Drag & drop an image here, or use the button below

PNG, JPG, GIF, WebP, AVIF — nothing is uploaded

Render mode

Raise it to keep only the strongest contours.

Your sketch will appear here.

About this tool

Photo to Pencil Sketch converts your image to greyscale, blurs away sensor noise, and measures the local gradient with the Sobel operator — anything above your threshold is inked as a contour. Pencil mode lays a rotated dot screen whose density follows luminance, so it reads like graphite shading rather than hard lines. Every step runs in your browser; nothing is uploaded.

  • 100% free — no account needed
  • Runs in your browser
  • Nothing is uploaded

Frequently asked questions

Is Photo to Pencil Sketch really free?

Yes. Photo to Pencil Sketch is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.

Does Photo to Pencil Sketch upload my data?

No. Photo to Pencil Sketch runs entirely inside your browser, so anything you type, paste, or open stays on your own device.

Do I need to sign up or install anything?

Neither. There is no account and nothing to download — open the page and Photo to Pencil Sketch is ready to use on desktop or mobile.

Does Photo to Pencil Sketch work offline?

Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.