PlaceIMG might be a bit more popular than FakeJSON. We know about 1 link to it since March 2021 and only 1 link to FakeJSON. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Fakejson.com — FakeJSON helps you quickly generate fake data using its API. Make an API request describing what you want and how you want it. The API returns it all in JSON. Speed up the go to market process for ideas and fake it till you make it. - Source: dev.to / almost 3 years ago
Https://placeimg.com/ has some good flexibility. Source: almost 2 years ago
Backbone.js - Give your JS App some Backbone with Models, Views, Collections, and Events
Lorem Picsum - Lorem Ipsum... but for photos
RANDOM.ORG - RANDOM.ORG offers true random numbers to anyone on the Internet.
PlaceKitten - Dead-easy placeholder images. Of kittens.
RandomPicker.com - RandomPicker.com helps you draw winners for your contests, giveaways or raffles.
LoremFlickr - LoremFlickr is a service that provides free placeholder images for web and print.