Dev tools · alternatives · 2026

24 alternatives to Mocker

Generate usable endpoints for testing

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Mock API Generator▲555

   Generate custom data & API to build apps in less than 30s

   2021 · retool.com · its alternatives →

2. 2MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

3. 3
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

4. 4ST
   Simple tool to generate mock APIs for testing▲25

   2024 · endpts.io · its alternatives →

5. 5
   Loremapis.com▲8

   Get mock APIs from your schema

   2025 · its alternatives →

6. 6
   Pollux▲82

   Fake json data & json server mock API generator with JWT

   2021 · mohammedal-rowad.github.io · its alternatives →

7. 7
   Rest Faker▲13

   Generate complete REST APIs with CRUD in matter of seconds

   Jun 2026 · its alternatives →

8. 8
   Mock API Generator▲17

   API Mocks Prototyping

   2020 · mock-api-builder.vercel.app · its alternatives →

9. 9
   Faker – Struct Data Fake Generator in Go▲34

   Go (Golang) Fake Data Generator for Struct. [Notes]This repository is archived, moved to the new repository https://github.com/go-faker/faker - bxcodec/faker

   2019 · github.com · its alternatives →

10. 10
    Faker.js UI▲74

    Simple and intuitive UI for Faker.js

    2023 · fakerjsui.com · its alternatives →

11. 11
    AI-Powered Mock API Generator▲86

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

12. 12
    Fake API for Devs▲8

    Free mock api generator for developers | instant test data

    Nov 2025 · fakeapifordevs.vercel.app · its alternatives →

13. 13GJ
    Generate JSON mock data for testing/initial app development▲103

    Easily create complex JSON data structures using intuitive templates.

    2023 · jsongenerator.io · its alternatives →

14. 14
    Mockphine▲87

    Mock blocked APIs, passthrough ready routes, see live source

    Mar 2026 · mockphine.com · its alternatives →

15. 15
    Mock Turtle▲72

    GUI approach to generating realistic mock JSON data

    2022 · mockturtle.net · its alternatives →

16. 16
    Generate React forms from JSON form schemas▲107

    Generate, validate, and parse React forms using Mongoose-inspired JSON schemas - SteveVitali/react-form-generator

    2015 · github.com · its alternatives →

17. 17
    JSON Generator▲139

    Create mock and sample JSON using a powerful template syntax

    2014 · json-generator.com · its alternatives →

18. 18
    Simple API Generator (Rest + GraphQL)▲121

    Instantly generate openapi (OAS) 3.0.0 REST + GraphQL APIs

    2019 · github.com · its alternatives →

19. 19
    Mockbin▲25

    Generate endpoints to test, mock, and track HTTP requesta

    2015 · its alternatives →

20. 20
    Web App for generating mocked data from an OpenAPI specification▲19

    Progressive Web App for generating mocked data from an OpenAPI specification - Fredx87/openapi-mock-generator

    2020 · github.com · its alternatives →

21. 21
    Routebase▲106

    Design, mock, test, and document APIs from one living spec. Full test runner built in: suites, scenarios, ten auth schemes, CLI in CI. No OpenAPI needed.

    Jul 2026 · routebase.dev · its alternatives →

22. 22
    Mocktail – Free, open-source mock API server with a built-in dashboard▲25

    Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out. Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required. You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time. With v4, I also added MCP support, so coding…

    Aug 2026 · getmocktail.com · its alternatives →

23. 23
    FakeURL▲6

    Free online api mocking tool | mock api generator

    2025 · fakeurl.dev · its alternatives →

24. 24
    Mockden▲12

    Rapid api prototyping & mock data

    2025 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →