DummyJSON vs RandomUser

DummyJSON is a free hosted REST API that supplies fake JSON data for frontend development, building, and testing without backend setup. Its listed resources include products, carts, users, posts, comments, quotes, todos, recipes, images, and authentication. Requests can use limit, skip, and select parameters; a limit of zero returns all items. A delay parameter simulates responses from 0 to 5000 milliseconds. Developers can create a hosted mock endpoint with their own JSON response and select GET, POST, PUT, PATCH, or DELETE. These endpoints last 90 days and accept response bodies up to 300 KB. The webhook inspector captures incoming requests for debugging and supports all HTTP methods; endpoints remain live for 24 hours, store up to 100 requests, and accept payloads up to 300 KB. Authorization, cookie, and x-api-key headers are removed before storage. Additional tools include a TOTP generator for base32 secrets and otpauth URIs, plus authentication examples for login, access and refresh tokens, and authenticated resource access. Product changes simulate requests but do not alter stored server data.

RandomUser is a free, open-source API that generates synthetic user records for application testing. Results are available as JSON, PrettyJSON, CSV, YAML, or XML, with fields including names, locations, emails, login details, birth and registration information, phone numbers, photos, and nationality. Requests can filter by gender or nationality, set a seed, paginate results, and include or exclude fields. Password generation supports selectable character sets and configurable length, with a default range of 8–64 characters. The API uses its latest version by default, while callers can request a specific version such as 1.4. Documentation demonstrates browser requests with AJAX and jQuery. The service is available through both web and API access, with up to 5,000 generated users per request. A free Photoshop extension has a CC 2017 limitation, and the Sketch extension remains in development.