Dev tools · alternatives · 2026

24 alternatives to StubBin

Intelligent, ephemeral API mocking with dynamic logic.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

1. 1
   Mocklets▲82

   A HTTP-based API simulator to assist parallel development 🛠️

   2018 · mocklets.com · its alternatives →

2. 2
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

3. 3
   Mockoon – mock REST APIs in seconds▲68

   Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

   2017 · mockoon.com · its alternatives →

4. 4
   FetchSandboxfree tier, from $5/mo▲348

   API integration testing that remembers what breaks

   Jul 2026 · fetchsandbox.com · its alternatives →

5. 5
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

6. 6
   Mockoon▲89

   Mock servers in seconds

   2017 · mockoon.com · its alternatives →

7. 7MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

8. 8
   Mockadillo▲115

   Mock your entire API in minutes.

   2019 · mockadillo.com · its alternatives →

9. 9
   Stubby – better client side mocking of HTTP Requests▲5

   Stubby is a small library for stubbing client-side AJAX requests, primarily designed for use in front end tests.

   2015 · gocardless.com · its alternatives →

10. 10
    Mockphine▲87

    Mock blocked APIs, passthrough ready routes, see live source

    Mar 2026 · mockphine.com · its alternatives →

11. 11
    Declarative Testing Framework for REST, GraphQL APIs▲45

    :boom: Test REST, GraphQL APIs. Contribute to kiranz/just-api development by creating an account on GitHub.

    2018 · github.com · its alternatives →

12. 12
    APIEval-20▲121

    An open benchmark for AI agents that test APIs

    May 2026 · resources.kusho.ai · its alternatives →

13. 13
    ezyMock▲81

    Mocking API endpoints has never been easier

    2017 · its alternatives →

14. 14MS
    Mocktastic – Simple, Offline mock REST APIs for your entire team▲43

    2018 · mocktastic.com · its alternatives →

15. 15
    Mockswitch▲67

    Stateful mock services, 10x faster

    2021 · its alternatives →

16. 16
    MockingBot▲82

    A rapid prototyping, design collaboration and handoff tool

    2018 · its alternatives →

17. 17SS
    StubOnWeb – Stub HTTP server to test API integrations▲25

    2015 · stubonweb.herokuapp.com · its alternatives →

18. 18
    Mockingjay – Fake servers and consumer-driven contracts▲39

    Fake server, Consumer Driven Contracts and help with testing performance from one configuration file with zero system dependencies and no coding whatsoever - quii/mockingjay-server

    2015 · github.com · its alternatives →

19. 19
    Mock Maker▲93

    Effortless mock APIs for seamless testing & prototyping

    2024 · its alternatives →

20. 20
    Prism▲79

    Accelerate API development with realistic mock servers

    2023 · stoplight.io · its alternatives →

21. 21
    Mockend▲6

    Effortless hosted fake REST and GraphQL API for teams/makers

    2023 · mockend.com · its alternatives →

22. 22
    Mocklets v2.0▲7

    Api management and testing platform for remote teams.

    2020 · mocklets.com · its alternatives →

23. 23
    Mock N' Roll▲4

    Mock api service for unparalleled dev!

    2025 · mocknroll.me · its alternatives →

24. 24
    Mockline▲5

    Instant Mock APIs from OpenAPI Specs

    Mar 2026 · mockline.xyz · 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 →