CDNJS vs Image-Charts
Same instrument, two spec sheets — measured, not claimed.
CDNJS vs Image-Charts: common questions
Which is more reliable, CDNJS or Image-Charts?
On our scheduled checks, CDNJS leads on measured uptime — CDNJS at 100% versus Image-Charts at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, CDNJS or Image-Charts?
Image-Charts has the lower median latency in our checks — CDNJS responds in 281 ms versus Image-Charts at 80 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do CDNJS and Image-Charts need an API key?
Neither needs a paid key — CDNJS is callable with no signup, and Image-Charts is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call CDNJS and Image-Charts from the browser?
Only CDNJS is browser-friendly — it returns CORS headers over HTTPS. Image-Charts needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are CDNJS and Image-Charts free for commercial use?
CDNJS has unclear commercial terms, and Image-Charts 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.