Nouplo

QR code on a transparent background

The white tile goes, the quiet zone stays. Nothing is uploaded.

Drop files here

or click to choose from your deviceAccepted: JPG, JPEG, PNG, WEBP, AVIF, GIF, BMP, HEIC, HEIF

Up to 3 files per runUp to 20 MB per file10 runs per dayRemove limits with Pro✓ Works offline

Your files stay on your device

This tool runs entirely in your browser. Nothing is uploaded, nothing is stored, and you can even turn off your internet connection before you start.

How it works

  1. Drop the QR code image. A screenshot or a scan of a printed one both work.
  2. The white becomes transparent and the black modules stay. Ink is set to black so a slightly grey scan comes out solid.
  3. Trimming is on, but it stops at the quiet zone rather than at the modules — see below for why that matters.
  4. Download the PNG and place it on your design. Then scan it from the finished artwork before printing anything.

Frequently asked questions

What is the quiet zone and why keep it?
The empty margin around a QR code is part of the code, not decoration. Readers use it to find where the code begins; the specification asks for four modules of clear space. Trimming tight to the black makes a code that looks right and fails on half the phones that try it, which is the worst kind of failure because you find out after printing.
It is transparent, so what sits behind it?
Whatever you put it on — and that is the risk. A QR code needs contrast between its dark modules and the space around them. On a dark or busy background the code disappears to a camera even though it looks fine to you. Place it on a light, plain area, or keep a light panel behind it.
Can I invert it to a white code on dark?
Some readers cope and some do not, so it is not something to do on a printed poster you cannot change. Test with several phones before committing. This tool keeps the code dark, which is the reliable direction.
Will you read what the code says?
No. This only changes pixels. If you want to know what a code contains, the QR reader does that — also in the browser, with no upload.

Made for a specific use

Related tools