Sharpen & Blur

Global applies the effect to the entire image at once. Region mode lets you drag a rectangle over any part of the image — only that selected area is affected. This is ideal for blurring a face, license plate, or sensitive text while keeping the rest of the image sharp.

Yes — each time you click Apply Effect the result becomes the new working image. You can blur one region, then blur another, then sharpen globally — all in sequence. Use the Undo button to step back one operation at a time.

For privacy purposes — hiding faces, license plates, or personal details — a strength of 7 or higher is recommended. Lower settings create a soft aesthetic blur, but may not fully obscure readable text or recognisable features. Apply the effect multiple times at high strength for maximum obscuring.

Sharpening enhances edges and fine detail that already exist in the image, making slightly soft photos look crisper. However, it cannot recover detail from a heavily out-of-focus or motion-blurred photo — that information simply isn’t in the image data. For mildly soft images, strength 3–5 usually gives the best result without introducing noise or artefacts.

PNG files are downloaded as PNG to preserve lossless quality. All other formats (JPG, WebP, etc.) are downloaded as high-quality JPEG. This ensures the sharpening or blur effect is preserved exactly as shown in the preview without additional compression artefacts.