What are the benefits of Image Edge Map Maker?

Quickly create Canny-style contour references in the browser for generative AI preparation and composition checks.. Switch between black-background white-line output and white-background black-line output for AI input or document use.. The processed sample appears immediately, making the adjustment controls easy to understand visually..

Is Image Edge Map Maker free?

Yes, it is completely free to use, and no registration is required. Tool processing happens entirely in your browser, and your input content and uploaded files are not sent to a server. Our first-party improvement metrics use no cookies, visitor IDs, or session IDs and store only normalized page paths and daily counts for fixed event IDs.

Image Edge Map Maker

Create edge maps for ControlNet references and composition checks

🖼️

画像エッジマップ作成

画像をドラッグ＆ドロップ

About Image Edge Map Maker

Image Edge Map Maker detects contours from brightness differences in photos and illustrations, then saves the result as a white-line or black-line edge PNG. Compared with line-art extraction, this tool focuses more directly on edge detection, making it useful for windows, building boundaries, road markings, object outlines, and other structural details.

Sharp mode keeps only edges above the threshold, producing a clear binary map. Soft mode preserves edge strength as grayscale, which is useful when the result will be adjusted in another tool. White lines on a black background are close to a Canny-style ControlNet input, while black lines on white are convenient for documents and printing.

A processed anime-style town sample loads automatically on first view, so users can try threshold and strength changes before uploading their own image. Processing is done locally in the browser, and images are not uploaded to any external server.

How to use Image Edge Map Maker

A processed sample edge map appears on first load. To use your own image, drag and drop an image or click the upload area.
Adjust the preset, output type, background, strength, and threshold while checking the preview.
Click Download edge map to save the result as a PNG file.

Benefits of Image Edge Map Maker

Quickly create Canny-style contour references in the browser for generative AI preparation and composition checks.
Switch between black-background white-line output and white-background black-line output for AI input or document use.
The processed sample appears immediately, making the adjustment controls easy to understand visually.