QR CODE GENERATOR

Free Online QR Code Generator

Paste a link or any text, generate a crisp QR code, and download it as a PNG in seconds. Clean UI, no sign-ups, and built to be fast.

QR Code Generator

Text or URL

Size (px)

Error correction

Margin (quiet zone)

PNG file name (optional)

Foreground color

Background color

Preview

Generate a QR code to see it here.

How this QR generator works

Paste text, tweak settings, download a PNG.

This is a free online QR code generator. Enter any text or URL, choose size/colors, click Generate, then download. The live counter in the header shows how many QR codes have been generated using this tool so far.

Fast preview

Generate a QR instantly and preview before you download.

Download PNG

Save the QR as a PNG file for print, WhatsApp, menus, posters, or labels.

Privacy note: QR content is generated in your browser. Only an anonymous counter increment is sent to update the header count.

Common use cases

Practical ways people use QR codes every day.

Business

Add a QR on business cards and flyers
Attach a QR to product packaging
Share payment links or signup pages
Make posters scannable in seconds

Operations

Label equipment with a documentation link
Add quick-access URLs on internal docs
Create QR labels for short instructions
Use QR tags for inventory workflows

Best-results checklist

Keep it scannable across phones and print.

Print & sizing

Use at least 320px for sharp, reliable scans
Keep a visible quiet zone (margin) around the QR
For posters, go bigger: 512px or more
Test scan from your intended distance

Contrast & styling

Prefer dark foreground on light background
Avoid low-contrast color combos
Use stronger error correction for harder conditions
Always scan-test after changing colors

If a QR fails to scan: increase size, increase margin, increase contrast, or switch error correction to Q or H.

Example payloads

Copy an example, paste it into the generator, and scan.

https://codesofhex.com

WIFI:T:WPA;S:MyNetworkName;P:MyPassword;;

mailto:hello@example.com?subject=Hello&body=Hi%20there

SMSTO:+15551234567:Hello%20from%20Codes%20of%20Hex

Tip: For Wi-Fi QR, replace SSID/password and keep the final ;;.

Troubleshooting & FAQ

Quick answers to common questions.

Is this a free online QR code generator?

Yes. Codes of Hex lets you generate QR codes online for free - no sign-ups or subscriptions.

Do you store my QR content?

The QR image is generated in your browser. The only server request is a simple counter increment to update the header number.

What format can I download?

This tool downloads a .png image. PNG is great for sharing and print.

My QR looks blurry. How do I fix it?

Increase the size (try 512px) and avoid resizing the QR image after download. For print, keep the image at its original dimensions.

What does “error correction” mean?

Higher levels help scanning work even if the QR is slightly damaged or low quality, but can make codes denser. For most uses, M is a good default. Try Q or H for stickers and posters.

Why won’t it scan?

Increase contrast (dark on light), increase margin, increase size, and scan-test on another phone. Also ensure the content is valid (for example, a URL should include https://).

Privacy & safe usage

Good habits for using online tools safely.

Avoid encoding secrets you would not share publicly.
For Wi-Fi QR codes, share only when you trust the audience.
Scan-test before printing large batches of QR codes.

Read the full workflow guide

Deeper context, common mistakes, and step-by-step best practices.

The companion guide covers payload design for reliable scanning, the contrast and size rules that matter most, how to test codes in real conditions across different devices, and best practices for menus, Wi-Fi sharing, and print use.

Read the full guide →