DummyJSON
Test Data
Fake REST API with products, users, posts, comments, todos and more
Mock endpoints, fake records and sandboxes for development and testing.
48 listed · 36 need no key · 16 work in the browser
Test Data
Fake REST API with products, users, posts, comments, todos and more
Test Data
Generate English Random Words with Pronunciation
Test Data
Fictional identities, addresses and names for tests
Test Data
API mocking tool to generate contextual, fake or random data
Test Data
API for generating random user data like names, emails, addresses, and more. Provides JSON, XML, CSV, or YAML objects.
Test Data
Generate random robot/alien avatars
Test Data
Format-true synthetic test data for 90 countries: IDs, IBANs, cards, addresses
Test Data
Deterministic SVG/PNG/WebP avatars from any string, four styles
Test Data
Random commit message generator
Test Data
This API generates a random 'Yes' or 'No' response.
Test Data
Random US, Hong Kong and Cape Verde addresses with matched city, state and ZIP
Test Data
The Bacon Ipsum JSON API is a REST interface for generating meaty lorem ipsum text that can be utilized by any application. Users can specify parameters such as type of text, number of paragraphs, and format to get tailored responses.
Test Data
Free stateful CRUD APIs
Test Data
Generate random pixel-art avatars
Test Data
APIs collection to get fake data
Test Data
Fake store rest API for your e-commerce or shopping website prototype
Test Data
Fake REST API with chaos controls: force any status code, add latency, or a failure rate
Test Data
Generate Random startup ideas
Test Data
This API allows users to create a customizable mock API for testing and prototyping. Users can define resources and rules to specify how the API handles requests and responses. It is free and open-source, enabling easy setup for local installations.
Test Data
The Ultimate Lorem Ipsum Generator
Test Data
The "lorem ipsum" generator that doesn't suck
Test Data
Generate demo paragraphs giving number of words and sentences
Test Data
Tiny API mocking microservice for generating fake JSON data
Test Data
Mockae API allows you to create mock REST APIs with Lua code execution, enabling customization of headers, bodies, and HTTP status codes. It's ideal for testing and prototyping, providing a flexible way to generate API responses quickly and easily.
Counts and timings below come from our own scheduled checks of this category.
We track 48 in this category, of which 35 responded at our last check. 36 of them need no API key.
36 of the 48 entries here need no credential. Filter this page by "no key" to see them, or browse the no-key collection for every keyless API across all categories.
10 entries in this category need no key and return CORS headers, which is the combination that lets you call them straight from client-side JavaScript. The rest need a server or a proxy in between.
Of the keyless options that responded at our last check, AddressMock was quickest at a median 61 ms. Speed is only one factor — coverage and licensing usually matter more — but it is measured here rather than claimed.
We call every listing on a schedule and record the status code, response time and whether CORS headers came back. Those results drive the badges on this page. Across the whole catalogue, 487 of 2,712 entries were not responding at the last full run, which is the sort of thing an unchecked list never tells you.