QR Code Generator
QR code downloaded.
Link Inspector
UTM Link Builder
QR Error Correction
- L: recovers up to 7%
- M: recovers up to 15% (default)
- Q: recovers up to 25%
- H: recovers up to 30%
Related Tools
UTM Parameters
- source: traffic origin
- medium: marketing channel
- campaign: campaign name
The QR & link page combines three utilities: generate QR codes from a URL or text, inspect the structure of any link, and assemble UTM campaign links. QR codes are customizable — size, color, error-correction level — and download as PNG.
The link inspector breaks a long URL into protocol, host, path and query parameters, which makes it easy to see exactly what tracking baggage a link carries.
How to use
- QR generator: enter content (URL, text, Wi-Fi info), adjust size, color and error-correction level, then save as PNG.
- Link inspector: paste a URL to see its protocol, host, path and each query parameter listed separately.
- UTM builder: enter a base URL plus source, medium and campaign values to get a finished campaign link.
Common use cases
- Print materials
- Create QR codes at print-appropriate resolution for menus, posters and business cards.
- Checking suspicious links
- Paste a link from an email into the inspector to see the real domain and attached parameters before clicking.
- Campaign tracking
- Give each channel its own UTM link so analytics tools can attribute traffic correctly.
Good to know
Error correction determines how much damage a QR code can survive: L ≈ 7%, M ≈ 15%, Q ≈ 25%, H ≈ 30%. Higher levels are more robust but denser — M is fine for screens; use Q or H for print that may get scuffed or when overlaying a logo.
These are static QR codes: the content is embedded in the pattern itself. They never expire, have no scan limits, and are free for commercial use — but the content cannot be changed after printing, so double-check the link before saving.
Frequently asked questions
Do generated QR codes expire?
No. They are static — the data lives inside the code, with no dependency on an external service. They only "break" if the page the embedded link points to disappears.
Will a colored QR code still scan?
Yes, as long as there is strong contrast: dark code on a light background. Low-contrast or inverted schemes can fail on some scanners.
What goes in each UTM parameter?
utm_source is where traffic comes from (google, instagram), utm_medium is the channel type (social, email, cpc), utm_campaign is your campaign name (spring_sale). Analytics tools group traffic by this combination.
Can I use the codes commercially?
Yes — use them freely on print, products and ads with no restrictions.