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QR & Barcode vs Rendex

Same instrument, two spec sheets — measured, not claimed.

APIQR & BarcodeHEALTHY91RendexDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms722—
P95 · ms1344—
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

QR & Barcode vs Rendex: common questions

Which is more reliable, QR & Barcode or Rendex?

On our scheduled checks, QR & Barcode leads on measured uptime — QR & Barcode at 100% versus Rendex at 0.0% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do QR & Barcode and Rendex need an API key?

QR & Barcode needs no key, while Rendex requires a free API key. If you want to start calling without signup, reach for QR & Barcode first.

Can I call QR & Barcode and Rendex from the browser?

Yes — both QR & Barcode and Rendex send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are QR & Barcode and Rendex free for commercial use?

QR & Barcode has unclear commercial terms, and Rendex has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.