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DummyJSON
What it is
DummyJSON is a free hosted REST API for frontend projects that need sample JSON data without setting up a backend. Its resources include products, carts, users, posts, comments, quotes, todos, recipes, images, and authentication. Documentation describes it for any type of frontend project that needs dummy data. Requests support limit, skip, and select parameters, and a limit of zero returns all items. A delay parameter can simulate responses from 0 to 5000 milliseconds. Developers can create hosted mock endpoints with a custom JSON response and choose GET, POST, PUT, PATCH, or DELETE; those endpoints last 90 days and accept bodies up to 300 KB. A webhook inspector captures incoming requests for debugging and supports all HTTP methods, with endpoints live for 24 hours and storage for up to 100 requests. It also strips authorization, cookie, and x-api-key headers before storage. Other tools include TOTP code generation and authentication examples. Product changes are simulated and do not alter stored server data.
For and against
For
- Free plan for fake REST API data
- Broad range of listed JSON resources
- Query controls include limit, skip, and select
- Custom mock endpoints support five HTTP methods
- Webhook inspector captures requests for debugging
Against
- Custom response endpoints last 90 days
- Webhook endpoints remain live for 24 hours
- Webhook storage is limited to 100 requests
- Product updates do not change stored server data
The verdict
DummyJSON provides a range of hosted sample resources and mock tools for frontend development without backend setup. Keep the endpoint lifetime and webhook storage limits in mind when planning longer-running work.
Who it suits
DummyJSON suits frontend developers who need sample JSON resources or mock API responses without backend setup. Its pagination, delay simulation, webhook inspection, and authentication examples may also help when developing and debugging integrations.
Plans and prices
DummyJSON
Free fake REST API; no price stated
Read 4 Oct 2026 · dummyjson.com
On the record
- Authentication
- The auth endpoints demonstrate login, access and refresh tokens, and authenticated resource access.dummyjson.com · read 4 Oct 2026
- Custom API
- Users can create a hosted mock REST API endpoint with their own JSON response body and select GET, POST, PUT, PATCH, or DELETE.dummyjson.com · read 4 Oct 2026
- Custom API limits
- Custom response endpoints last 90 days and accept JSON response bodies up to 300 KB.dummyjson.com · read 4 Oct 2026
- Datasets
- The site lists products, carts, users, posts, comments, quotes, todos, recipes, images, and authentication resources.dummyjson.com · read 4 Oct 2026
- Mock data behavior
- Adding or updating products simulates the request and returns a result without changing the server’s stored data.dummyjson.com · read 4 Oct 2026
- Pagination
- Resources support limit, skip, and select query parameters, and limit=0 returns all items.dummyjson.com · read 4 Oct 2026
- Purpose
- DummyJSON provides fake REST API data for frontend development, building, and testing without backend setup.dummyjson.com · read 4 Oct 2026
- Response delay
- A delay query parameter can simulate responses from 0 to 5000 milliseconds.dummyjson.com · read 4 Oct 2026
- Scale
- The homepage states that DummyJSON serves over 500 million requests monthly.dummyjson.com · read 4 Oct 2026
- TOTP tool
- The TOTP tool generates real-time verification codes and supports base32 secrets and otpauth URIs.dummyjson.com · read 4 Oct 2026
- Usage
- The documentation says DummyJSON can be used with any type of frontend project needing dummy data in JSON format.dummyjson.com · read 4 Oct 2026
- Webhook limits
- Each webhook stores up to 100 requests, accepts payloads up to 300 KB, and strips authorization, cookie, and x-api-key headers before storage.dummyjson.com · read 4 Oct 2026
- Webhook tool
- The webhook inspector captures incoming requests for debugging, supports all HTTP methods, and keeps endpoints live for 24 hours.dummyjson.com · read 4 Oct 2026
