Highlight only the edges and outlines of a photo, turning it into a sketch-like line drawing. Free, instant, no upload.
1. Upload Image
Upload an image to apply the Edge Detection effect
About the Edge Detection Tool
Using a Sobel edge-detection convolution, this tool isolates the contours of a photo and discards flat areas, producing a pencil-sketch or line-art style result.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Premium Features & Batch Processing
Get started with our free tier for single-file operations. Upgrade to DCPixel PRO to unlock high-speed batch processing, local AI background removal, and advanced PDF controls.
Frequently Asked Questions
Does this permanently change my original file?+
No. The effect is applied to a copy rendered in your browser. Your original image on disk is never touched — you download a new file with the effect applied.
Can I adjust the intensity before downloading?+
Yes. Every slider updates the preview in real time, so you can fine-tune the effect before exporting the final image.
What format is the downloaded file?+
PNG, to preserve full quality and, where relevant, transparency.
User Reviews
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