Online Batch Image Blur Border Generator

What Online Batch Image Blur Border Generator does

Batch process multiple images: extend image canvas with blurred background

Worked example

How the pixels are processed

A scaled copy fills the extended canvas, is blurred, and the original image is centered above it.

Useful workflows

• Prepare web graphics, product images, presentations or visual test fixtures.
• Compare the preview at 100% zoom before exporting the result.
• Keep consistent settings across related images while reviewing each batch item separately.

Quality, privacy and compatibility checks

• Repeated lossy export can reduce quality; retain an original and choose an appropriate output format.
• Very large dimensions or batches can exceed browser memory even when total file size appears small.
• Metadata, color profiles, animation and transparency may not be preserved by every canvas export format.

Frequently asked questions

Is the source image uploaded?

The normal editor decodes and processes supported images in this browser without uploading them to an application server.

Why can the downloaded image look different?

Check output format, compression, color profile, transparency, dimensions and whether the browser applied orientation metadata.

Can I adjust the blur for each image individually?

No, the tool applies one shared output width, output height and blur radius to every selected image. To use different settings, process each image in a separate batch.

What happens if my image is larger than the output canvas?

The sharp foreground is scaled to fit completely inside the canvas, so it is never cropped. The blurred background is scaled to cover the entire canvas, which may crop the edges of the scaled copy.