Stop Building APIs from Scratch for Prototypes — Use This Instead

Every time I start a new frontend project, the same problem hits: the backend isn't ready yet. I used to build minimal Express/Flask servers just to have something to fetch from. That's at least 30 minutes of boilerplate before writing any frontend code. Then I built a tool that creates a full REST API from a JSON file in 10 seconds. The Problem You're building a React dashboard. You need: GET /users — list of users GET /users/1 — single user POST /users — create user PUT /users/1 — update user DELETE /users/1 — delete user Plus filtering, pagination, and sorting. Setting this up with Express: 30-60 minutes . Setting this up with json-api-mocker: 10 seconds . How It Works Create a JSON file with your data: { "users" : [ { "id" : 1 , "name" : "Alice" , "email" : "alice@test.com" , "role" : "admin" }, { "id" : 2 , "name" : "Bob" , "email" : "bob@test.com" , "role" : "user" } ], "posts" : [ { "id" : 1 , "userId" : 1 , "title" : "Hello World" }, { "id" : 2 , "userId" : 2 , "title" : "Pytho