ItsThisForThat vs QuickChart
Same instrument, two spec sheets — measured, not claimed.
ItsThisForThat vs QuickChart: common questions
Which is more reliable, ItsThisForThat or QuickChart?
Both are neck-and-neck — ItsThisForThat and QuickChart each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, ItsThisForThat or QuickChart?
ItsThisForThat has the lower median latency in our checks — ItsThisForThat responds in 242 ms versus QuickChart at 318 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 ItsThisForThat and QuickChart need an API key?
Neither needs a paid key — ItsThisForThat is callable with no signup, and QuickChart is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ItsThisForThat and QuickChart from the browser?
Neither sends browser-friendly CORS headers reliably, so call ItsThisForThat and QuickChart from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are ItsThisForThat and QuickChart free for commercial use?
ItsThisForThat has unclear commercial terms, and QuickChart 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.