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How to customize a QR code (without breaking it)

Colors, logos, sizes — what QR Code Generator lets you change, and what you should leave alone. Browser-based, free, no signup, runs entirely on your device.

Tool:QR Code Generator

Generating a QR code sounds like it should require an app — and historically it did. QR Code Generator runs the same thing in your browser tab, with one tap and no signup.

Use the tool: QR Code Generator — Runs entirely on your device using open web standards.

What you can customize in QR Code Generator

QR Code Generator exposes the options that matter without overwhelming you with the ones that don't:

  • Size — pick the smallest size that still scans reliably for your use case
  • Color — foreground and background. Keep contrast high; aesthetics shouldn't fight readability
  • Margin / "quiet zone" — the empty border around the QR code. Don't skip this; scanners need it
  • Logo overlay — embed a brand image in the middle. Works because of built-in redundancy in the encoding

What you shouldn't change

  • The error-correction level (raise it, don't lower it)
  • The encoding format (let QR Code Generator pick the best one for your input)
  • The aspect ratio (always square — non-square QR codes are unreadable)

Open the tool

QR Code Generator →

No upload, no signup, no daily limit.

Frequently asked questions

Will my QR code work after QR Code Generator shuts down?

Yes — once generated, a QR code is a standalone artefact. It doesn't depend on QR Code Generator continuing to exist.

Is QR Code Generator truly free?

Yes. No signup, no daily cap, no watermark. The site is supported by ads, not subscriptions.

Can I customize the QR code's appearance?

Yes — size, color, error-correction, margin, and optional logo overlay are all supported.

Can I generate QR codes in bulk?

Yes — drop a list of inputs and QR Code Generator runs them all in sequence, packaged into a ZIP for download.

Related guides

Ready to try it?

Open the tool: QR Code Generator. No upload, no signup, no daily limit.

Last reviewed May 2026. File-size limits, portal requirements, and software defaults change over time — always verify with the destination platform before uploading time-sensitive documents. References to third-party services and products are for descriptive purposes only and do not imply any partnership or endorsement.