Turn any text or URL into a QR code, instantly.
One API call returns a scannable QR code as a raw PNG or base64 JSON — configurable size and error-correction level.
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What the QR Code Generator API Does
One endpoint. Any text or URL becomes a scannable QR code — as a raw PNG for direct embedding, or base64 JSON for inline use.
Two response formats
GET /v1/technology/qr returns a raw PNG image, ideal for direct download or embedding with an <img> tag pointing at the API. GET /v1/technology/qr/base64 returns a JSON envelope with the image already base64-encoded, ready to inline into HTML or store in a database.
GET /v1/technology/qr?data=https://example.com
Host: requiems.xyz
requiems-api-key: YOUR_API_KEY
GET /v1/technology/qr/base64?data=https://example.com
Host: requiems.xyz
requiems-api-key: YOUR_API_KEY
Simplicity
Pass the text or URL to encode and get a QR code back. Configurable size (50–1000px) and error-correction level (low/medium/high/highest) let you tune for screen or print use without any extra libraries.
{
"data": {
"image": "iVBORw0KGgoAAAANS...",
"width": 256,
"height": 256
}
}
Use QR Codes in Any Workflow
From invoices to event check-in — if it needs a scannable code, the QR Code API has you covered.
QR codes on invoices and receipts
Embed a QR code linking to a digital receipt or payment page directly on printed or PDF invoices.
Trackable campaign links
Generate QR codes for print ads and packaging that link to trackable URLs, measuring offline campaign performance.
Ticketing and check-in
Generate a unique QR code per attendee for fast check-in scanning at the door.
App deep-link distribution
Turn app store or deep-link URLs into QR codes for posters, cards, and in-app sharing.
Share contact info via scan
Encode vCard data or contact URLs into a QR code for business cards and email signatures.
Product and inventory labels
Generate scannable codes linking to product pages, manuals, or inventory records.
Use together with complementary APIs.
QR Code Generator works even better when paired with other Requiems APIs.
Benefit: Validate a URL's domain before encoding it.
Outcome: Avoid generating QR codes that point to broken or unregistered domains.
Benefit: Validate a phone number, then encode it as a scannable QR code.
Outcome: Generate reliable 'tap to call' QR codes for business cards and ads.
Benefit: Validate an email address before embedding a mailto: link.
Outcome: Avoid printing QR codes that lead to invalid or bouncing email addresses.
Frequently Asked Questions
Still have questions? Contact support
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