Image Tools
EN

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Local
Your images stay here

Processing happens in this browser. No upload, account or tracking.

Learn more

Add a background and margins

Expand the canvas with transparent or colored margins without uploading the image.

  1. Add images
  2. Adjust
  3. Download

Drop images here

or choose files from this device

JPEG, PNG, WebP, AVIF, HEIC/HEIF · batch size adapts to your device
Try a sample:
  • ✓ No upload
  • ✓ No account
  • ✓ Works locally
01Private by design

Your pixels stay in this tab.

02A real result

Weight, dimensions and format are verified.

03No detour

No account, queue or upload.

HOW IT WORKS

From image to download in three steps

  1. 1
    Add

    Choose one or more images.

  2. 2
    Adjust

    Adjust only the settings for this tool.

  3. 3
    Download

    Get the validated result.

Guide · EN

How it works

Add an image.

Open the pre-enabled settings.

Adjust, then download the validated output.

01

Formats and settings

  • Expand the canvas with transparent or colored margins without uploading the image.
02

A concrete example

Expand the canvas with transparent or colored margins without uploading the image.

03

Know before you start

  • Text watermarking depends on Worker Canvas support.
  • Margins increase final dimensions.

FAQ · 3

Frequently asked questions

Does processing stay local?

Yes. Every step runs in the browser.

Can I combine several adjustments?

Yes. Crop, rotation, size, margins, watermark, and compression form one pipeline.

Is the result verified?

Yes. Its signature, format, and dimensions are checked before download.