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Convert images to Base64 encoded strings for embedding in CSS, HTML, or JavaScript. Multiple output formats available.
Compare two images pixel-by-pixel. Multiple comparison modes: side-by-side, overlay, difference highlighting, onion skin, and slider. Perfect for visual regression testing.
Crop and trim images with precision visual selection. Features aspect ratio presets (1:1, 16:9, 4:3), free-form cropping, grid overlays, and pixel-perfect adjustments for professional results.
Detect and highlight edges in images using algorithms like Sobel and Canny. Edge detection isolates boundaries and contours, which is useful for computer vision tasks, artistic line-drawing effects, or analyzing structural details in photographs.
Extract clean line drawings from photographs for tracing, coloring, or artistic use.
Prepare images for object detection pipelines by isolating structural edges.
Highlight structural lines in building or engineering photographs.
Sobel is simpler and faster, detecting edges by computing intensity gradients. Canny is more sophisticated — it uses non-maximum suppression and hysteresis thresholding to produce cleaner, thinner edges with fewer false positives.
Yes. The threshold slider controls sensitivity. Lower thresholds detect more edges (including subtle ones), while higher thresholds only capture strong boundaries.
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.