API Mock Server Generator

Generate an Express mock server scaffold from endpoint JSON.

Mock Config JSON

Generated Mock Server

import express from 'express'

const app = express()
app.use(express.json())

app.get('/users', (_req, res) => res.status(200).json([
  {
    "id": 1,
    "name": "QA"
  }
]))

app.listen(4000, () => console.log("Mock server running on 4000"))

About

Draft mock endpoint shapes from schemas so teams can stand up test doubles faster.

Accepted input

Accepts API endpoints, request payloads, headers, schemas, or captured responses depending on the tool. Large bodies stay in your browser unless the tool explicitly sends a request to the endpoint you provide.

How to use

Open API Mock Server Generator and paste, type, or upload the input it expects.
Adjust the available options until the preview or output reflects the workflow you need.
Use copy, download, or related follow-up tools once the result looks correct.

Tips

Pair it with other api tools from the same category when you need a broader workflow.
Pinned tools and recent history make it faster to return to repeated workflows.

About

Draft mock endpoint shapes from schemas so teams can stand up test doubles faster.

Accepted input

How to use

Open API Mock Server Generator and paste, type, or upload the input it expects.
Adjust the available options until the preview or output reflects the workflow you need.
Use copy, download, or related follow-up tools once the result looks correct.

Tips

Pair it with other api tools from the same category when you need a broader workflow.
Pinned tools and recent history make it faster to return to repeated workflows.