How do I use the QR code generator?

Type or paste the URL or text you want to encode, choose a size and error-correction level, optionally adjust colors or upload a logo, and the QR code updates live. Click 'Download PNG' or 'Download SVG' to save the result.

Is the QR code generator free?

Yes. WebGenAI's QR code generator is 100% free, with no signup, watermarks, or scan limits. Generated codes are yours to use commercially or personally.

Will the QR code expire?

No — static QR codes never expire. They encode the data directly into the pattern itself, so as long as the destination (for URLs) is online, the code will keep working forever. Only 'dynamic' QR codes (which redirect through a third-party server) can expire if that service shuts down. This generator creates static codes.

How accurate is the QR code?

Codes are generated using the standard ISO/IEC 18004 specification and tested against the four error-correction levels (L, M, Q, H). Higher levels add redundancy so the code remains scannable even if up to 30% is damaged or covered by a logo.

Can I use the QR code generator on mobile?

Yes. The interface is fully responsive and works on iOS, Android, and tablets. The generated PNG and SVG files download directly to your device's storage.

Does the generator save my data?

No. The QR code is created entirely in your browser using JavaScript. The text, URL, or logo you upload is never sent to any server.

What's the difference between this and a UUID generator?

A QR code encodes existing data (a URL, text, contact card) into a scannable image. A UUID generator creates new unique identifiers (long random strings) typically used inside databases or APIs. They solve different problems.

QR Code Generator — Free Custom QR Codes

How QR codes work

A QR (Quick Response) code is a 2D matrix barcode invented by Denso Wave in 1994 to track auto parts. Today it encodes anything from URLs to Wi-Fi credentials in a pattern of black-and-white modules that smartphones can read instantly.

Encoding. The text you type is first encoded into one of four data modes: numeric (digits only — most compact), alphanumeric (uppercase + symbols), byte (UTF-8 — used for URLs), or kanji. The encoded bytes are then split into codeword blocks.

Error correction. Every QR code adds Reed-Solomon error-correction bytes so it stays scannable even if part of it is dirty, scratched, or covered by a logo. The four levels — L (7%), M (15%), Q (25%), H (30%) — control how much damage the code can tolerate. Use Q or H if you plan to add a logo.

Static vs dynamic. This generator creates static QR codes — the destination is encoded directly into the pattern, so the code works forever and cannot be tracked or expire. Dynamic QR codes (offered by some paid services) redirect through a third-party server, which lets the owner change the destination but means the code can stop working if that service shuts down.

Examples

Example 1 — Restaurant menu

Encoded value	https://example-cafe.com/menu
Error correction	Q (25%)
Logo	Café icon, 20% size
Format	PNG, 512×512px, printed at 1.5 inches

Example 2 — Wi-Fi credentials

Encoded value	WIFI:T:WPA;S:GuestNet;P:welcome2026;;
Error correction	M (15%)
Logo	None
Format	SVG (scales to any size)

Example 3 — Business card (vCard)

Encoded value	BEGIN:VCARD\nVERSION:3.0\nFN:Jane Doe…
Error correction	H (30%)
Logo	Company logo, 18% size
Format	PNG, 1024×1024px

Frequently asked questions

A QR code generator is a tool that converts text, URLs, or other data into a two-dimensional barcode that smartphones can scan. The generated code is an image — typically PNG or SVG — that can be printed, embedded on a website, or shared digitally for instant access.

Why use a QR code generator?

QR codes bridge offline and online experiences in one scan. The most common use cases:

Restaurant menus — touchless menus became mainstream after 2020 and stayed.
Wi-Fi sharing — guests scan once and connect, no typing passwords.
Marketing collateral — posters, flyers, packaging that link to landing pages. Pair with our SEO tools to make sure those landing pages actually rank.
Payments — UPI, WeChat Pay, and Alipay are QR-driven globally.
Event tickets — boarding passes, concert tickets, conference badges.
App downloads — point users straight to the App Store or Play Store listing.

Building a print campaign? Draft your copy first with the word counter to nail your character limits, then size everything up for print using the generators hub for matching UUIDs, color codes and more.

Choosing the right error-correction level

Error correction trades data capacity for damage tolerance. Higher levels mean the code can survive more damage but the pattern becomes denser and the code physically larger for the same content.

Level	Recovery	Recommended use
L	~7%	Clean digital use only (e.g. embedded on a website)
M	~15%	Most general-purpose printing — default choice
Q	~25%	Print + small logo, outdoor signage
H	~30%	Large logo overlay, harsh environments, restaurant menus

Common mistakes & tips

Too small to scan. Print at minimum 2 cm (0.8 in) per side. For mounted signage, 5+ cm.
Insufficient quiet zone. Always leave a white margin of 4 modules around the code.
Low contrast. Dark on light works best. Inverted (light on dark) often fails.
Logo too large. Cap the logo at ~20% of the QR area and pair with level Q or H.
Using a dynamic redirect for permanent print. If the redirect service dies, every printed code dies with it. Use static codes for anything physical.
Always test the printed code before mass production — scan from realistic distances and angles.