Turn your Swagger or OpenAPI spec into a fully working mock API without running a single server. Paste your spec, get a live endpoint with realistic fake data, and start testing your frontend immediately.
Tools like Prism or WireMock require Node.js, Docker, or Java — adding friction before you write a single line of frontend code.
Static fixture files mean every developer on the team works with different stale data that doesn't reflect the real spec.
Hand-writing mocks for every Swagger path means some endpoints are always missing or returning incorrect shapes.
Rest Faker reads your Swagger spec, maps field names to realistic Faker.js data types, and serves a live API from our hosted infrastructure.
Upload or paste your Swagger YAML/JSON in the import dialog. We support both Swagger 2.0 and OpenAPI 3.0.
Preview all the resolved paths and field types. Override any Faker.js mapping — or accept the auto-detected defaults.
Your Swagger mock API is live at a unique URL. Share it with your team and hit real HTTP endpoints immediately.
This Swagger 2.0 definition generates a fully functional CRUD endpoint with realistic data.
swagger.yaml (input)
swagger: "2.0"
info:
title: Petstore API
version: "1.0"
paths:
/pets:
get:
summary: List all pets
produces:
- application/json
responses:
200:
description: Successful response
schema:
type: array
items:
$ref: "#/definitions/Pet"
definitions:
Pet:
type: object
properties:
id:
type: integer
name:
type: string
status:
type: stringMock response (output)
GET https://api.restfaker.dev/api/schema/pets
apiToken: YOUR_API_TOKEN
{
"data": [
{
"id": 1,
"name": "Max",
"status": "available"
},
{
"id": 2,
"name": "Bella",
"status": "pending"
},
{
"id": 3,
"name": "Charlie",
"status": "sold"
}
],
"meta": { "total": 25, "page": 1, "perPage": 25, "pages": 1 }
}Full support for both spec versions. Paste YAML or JSON — we handle the parsing.
Resolves $ref schemas, allOf, oneOf, and nested definitions automatically.
Every path in your Swagger spec becomes GET, POST, PATCH, and DELETE endpoints.
When your Swagger spec changes, re-import it to sync the mock in one click.
Export a Postman collection with all your mocked endpoints pre-configured.
Simulate slow responses, HTTP errors, and rate limit scenarios to test your client code.
Zero install — no Node.js, Docker, or Java required on any machine
Hosted — your entire team accesses the same live mock URL, no local servers
Realistic data — field names drive smart Faker.js inference, not static examples
Re-import on spec change — sync your mock when the Swagger spec evolves
TypeScript types export — download interfaces generated from your Swagger schemas
Scenario testing — toggle errors, slow responses, and rate limits in one click
Free to start. No credit card. Live endpoint in under 30 seconds.
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