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QR Code Generator (Text / WiFi / vCard)

Generate QR codes for URLs, WiFi credentials, and vCard contacts. Custom colors, download PNG or copy straight to clipboard.

All tools Browser-only

Text or URL

QR color

Background

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Enter content on the left to generate a QR code

3 most useful QR types

📝 Text/URL: landing page, Google Maps location, social link
📶 WiFi: guests scan and connect — no need to type the password
👤 vCard: print on a business card / email signature — scan saves to Contacts

Print at least 2cm × 2cm. Longer content → denser QR → needs to be printed bigger.
Contrast matters: red-on-cream is OK; yellow-on-white may fail older scanners.
Always test scan before printing/posting.

Content creators, designers, devs handling images/media — compress before upload, base64 for vision LLMs, QR generation.

Are images uploaded to TopDev?

Never. All image processing uses the browser Canvas API. Disconnect from the internet to verify — the tool still works.

Is there image history?

No. After download, images leave the tab when you navigate away. No account, no cloud storage.

Generate placeholder image URLs (Lorem Picsum) for mockups and prototypes. 6 ratios + 5 common sizes + grayscale + blur.

Compress JPG/PNG/WebP, resize, change format — runs in-browser via Canvas API. Image is NOT uploaded anywhere.

Visual builder for linear/radial/conic gradients. 8 beautiful presets, multi-color stops, ready-to-copy CSS.

Convert between px / rem / em / pt / % / vw / vh. Adjustable base font-size and viewport.