Dev tools · alternatives · 2026

24 alternatives to Request API builder

Build API for your API with live tester, Test and debug tool

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Request API builder launched in 2021; newer entries below may have overtaken it.

1. 1
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

2. 2
   Apidog▲570

   Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

   2024 · apidog.com · its alternatives →

3. 3
   ApiHome▲73

   Home of API testing

   2022 · apihome.io · its alternatives →

4. 4
   WrapAPI▲283

   Build an API on top of any website

   2016 · wrapapi.com · its alternatives →

5. 5
   ReadMe Build▲367

   Build, deploy and share APIs & microservices easily 🚀

   2017 · its alternatives →

6. 6
   apiJuice▲223

   Create a hosted API for anything in seconds

   2025 · apijuice.com · its alternatives →

7. 7GJ
   Generate JSON mock data for testing/initial app development▲103

   Easily create complex JSON data structures using intuitive templates.

   2023 · jsongenerator.io · its alternatives →

8. 8
   JSON Api▲175

   Hosted API's to develop your app for free 🙌

   2020 · jsonapi.co · its alternatives →

9. 9
   Data Populator▲149

   Sketch and XD plugin to populate mockups with real data.

   2019 · datapopulator.com · its alternatives →

10. 10
    API Tester▲209

    The easiest way to test APIs

    2017 · its alternatives →

11. 11
    API_TESTER▲249

    Test your APIs right from the macOS menu bar

    2025 · apps.apple.com · its alternatives →

12. 12
    Akto's Test Editor▲143

    Your playground for writing custom API security tests

    2023 · akto.io · its alternatives →

13. 13
    Fabloq▲119

    Low Code API Builder

    2024 · its alternatives →

14. 14
    Nacapi▲174

    Turn your JSON into a restful API

    2021 · nacapi.com · its alternatives →

15. 15
    MockThis▲80

    Generate mock data using AI

    2023 · its alternatives →

16. 16WV
    WrapAPI v2 – Build APIs, scrapers, bots on any website▲166

    Build an API on top of any existing website or find an API for a site that you need

    2017 · wrapapi.com · its alternatives →

17. 17
    Fabloq▲102

    Low-code API builder

    2023 · its alternatives →

18. 18
    InstaAPI▲104

    Low-code API builder

    2023 · its alternatives →

19. 19
    Build API▲54

    A boilerplate about API building

    2024 · its alternatives →

20. 20
    create-api.dev by Kong▲150

    Generate and share OpenAPI specs with AI

    2025 · api.dev · its alternatives →

21. 21
    Reffresh▲91

    Simple, no code, mock APIs

    2024 · reffresh.com · its alternatives →

22. 22
    HTTP Response API▲102

    Test how your code reacts to varying HTTP responses

    2023 · http.codes · its alternatives →

23. 23
    Building APIs with Node.js▲130

    Build scalable APIs in Node.js platform

    2016 · leanpub.com · its alternatives →

24. 24
    InterimAPI▲68

    Custom API endpoints with realistic fake data in seconds

    2022 · interimapi.com · 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 →