JSONPlaceholder vs Mockaroo
Same instrument, two spec sheets — measured, not claimed.
JSONPlaceholder vs Mockaroo: common questions
Which is more reliable, JSONPlaceholder or Mockaroo?
Both are neck-and-neck — JSONPlaceholder and Mockaroo 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, JSONPlaceholder or Mockaroo?
JSONPlaceholder has the lower median latency in our checks — JSONPlaceholder responds in 401 ms versus Mockaroo at 529 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 JSONPlaceholder and Mockaroo need an API key?
JSONPlaceholder needs no key, while Mockaroo requires a free API key. If you want to start calling without signup, reach for JSONPlaceholder first.
Can I call JSONPlaceholder and Mockaroo from the browser?
Yes — both JSONPlaceholder and Mockaroo 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 JSONPlaceholder and Mockaroo free for commercial use?
JSONPlaceholder has unclear commercial terms, and Mockaroo 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.