Best Test Data APIs in 2026

The top 15 of 37 free Test Data APIs, ranked by how easy they are to start with (API key, HTTPS, CORS), how reliable they are in our daily health checks, and what developers rate them. AddressMock API takes the top spot.

Last tested Oct 24, 2026 · Rankings update daily

1
AddressMock API
Online · 784 ms
Random US, Hong Kong and Cape Verde addresses with matched city, state and ZIP.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
2
DummyJSON API
Online · 789 ms
Fake REST API with products, users, posts, comments, todos and more.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
3
flaky API
Online · 1050 ms
Fake REST API with chaos controls: force any status code, add latency, or a failure rate.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
4
loremfile API
Online · 924 ms
Hotlinkable CC0 sample files in 78 formats, each with a SHA-256 in a JSON manifest.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
5
Supercrontab Mock Endpoints API
Online · 822 ms
Mock endpoints in 8 formats, each returning any of 14 HTTP status codes.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
6
TestingAPIs API
Online · 642 ms
Free fake REST API with products, posts, todos, any HTTP status code and request echo.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
7
Waldrand Avatar API
Online · 804 ms
Deterministic SVG/PNG/WebP avatars from any string, four styles.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
8N
NovaFortix Dev API
Online · 561 ms
Zero-auth REST endpoints for mock user profiles, UUIDs and HTTP status codes.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
9
Bacon Ipsum API
Online · 1117 ms
A Meatier Lorem Ipsum Generator.
- No API key needed
- HTTPS
No authHTTPSCORS ?
10
FakeStoreAPI
Online · 861 ms
Fake store rest API for your e-commerce or shopping website prototype.
- No API key needed
- HTTPS
No authHTTPSCORS ?
11
RandomUser API
Online · 701 ms
Generates and list user data.
- No API key needed
- HTTPS
No authHTTPSCORS ?
12
RoboHash API
Online · 667 ms
Generate random robot/alien avatars. A free test data API by RoboHash.
- No API key needed
- HTTPS
No authHTTPSCORS ?
13
This Person Does not Exist API
Online · 786 ms
Generates real-life faces of people who do not exist.
- No API key needed
- HTTPS
No authHTTPSCORS ?
14T
TotalShiftLeft Sandbox API
Online · 1352 ms
Free multi-protocol sandbox: REST, GraphQL & SOAP with OAuth2/JWT auth and OpenAPI 3.0 spec.
- No API key needed
- Callable from the browser (CORS)
- HTTPS
No authHTTPSCORS
15
Yes No API
Online · 923 ms
Generate yes or no randomly.
- No API key needed
- Returns JSON at its URL
- HTTPS
No authHTTPSCORS ?

Test Data APIs compared

Top Test Data APIs compared
API	API key	HTTPS	CORS	Uptime	Response	Rating
AddressMock	No	Yes	Yes	Up	784 ms	Not rated
DummyJSON	No	Yes	Yes	Up	789 ms	Not rated
flaky	No	Yes	Yes	Up	1050 ms	Not rated
loremfile	No	Yes	Yes	Up	924 ms	Not rated
Supercrontab Mock Endpoints	No	Yes	Yes	Up	822 ms	Not rated
TestingAPIs	No	Yes	Yes	Up	642 ms	Not rated
Waldrand Avatar	No	Yes	Yes	Up	804 ms	Not rated
NovaFortix Dev	No	Yes	Yes	Up	561 ms	Not rated
Bacon Ipsum	No	Yes	Unknown	Up	1117 ms	Not rated
FakeStoreAPI	No	Yes	Unknown	Up	861 ms	Not rated

More Test Data APIs

Best Test Data API FAQ

What is the best free Test Data API in 2026?

Based on access, reliability and developer ratings, the top free Test Data APIs right now are AddressMock API, DummyJSON API and flaky API. AddressMock API ranks first. Rankings update daily from health checks of all 37 Test Data APIs in the directory.

What is the best Test Data API without an API key?

AddressMock API, DummyJSON API and flaky API need no API key, so you can call them without signing up. 31 of the 37 ranked Test Data APIs are keyless.

Which Test Data API works from the browser?

AddressMock API, DummyJSON API and flaky API support CORS over HTTPS, so front-end JavaScript can call them directly without a proxy.

How are these APIs ranked?

Each API gets a score from: no API key (+), HTTPS (+), CORS support (+), 30-day uptime and response time from our daily health checks, and ratings from developers on this site. APIs that failed three checks in a row are left out until they recover.