Alternatives

Products that do what Sandbox – instantly mock REST and SOAP web services does

1. 1MM
   Mockoon – mock REST APIs in seconds▲68

   2017 · mockoon.com

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

   2019 · mockit.netlify.com

3. 3MF
   Mockingjay – Fake servers and consumer-driven contracts▲39

   2015 · github.com

4. 4SA
   Sandy – A tiny Sandbox to run untrusted code ️▲64

   2020 · github.com

5. 5HA
   HTTPretty, an easy way to mock http requests in python▲97

   2012 · falcao.it

6. 6CO
   Codebox - Open-source cloud and desktop IDE▲136

   2014 · github.com

7. 7
   Mockable▲114

   For rapid API prototyping: create REST/SOAP mocks in 3 sec

   2015

8. 8DA
   Devilbox – all-purpose dockerized l[ae]m[ph]p stack for web development▲41

   2017 · github.com

9. 9
   runnable▲86

   A sandbox service that replaces Staging, QA, & Test servers

   2015

10. 10SB
    Stubby – better client side mocking of HTTP Requests▲5

    2015 · gocardless.com

11. 11DA
    Decoy – A native Mac app for mocking HTTP endpoints locally▲7

    Feb 2026 · decoy-app.com

12. 12AS
    Azure-sandbox▲10

    2016 · github.com

13. 13TR
    Testing RESTful services▲13

    2018 · medium.com

14. 14AM
    A minimalist toolkit for building scalable REST microservices▲19

    2019 · github.com

15. 15AF
    A free, open-source, collaborative, mock API▲5

    2021 · mockachino.com

16. 16CA
    Chameleon – a caching reverse proxy for testing/dev written in Go▲23

    2015 · github.com

17. 17VA
    Veris – Agent sandboxes with simulated external services▲9

    May 2026 · veris.ai

18. 18UL
    Userland local agent sandbox with real-time network control dashboard▲7

    Mar 2026 · greywall.io

19. 19FI
    Flems.io – A Single File, Embeddable Web Sandbox▲10

    2017 · flems.io

20. 20HW
    HTTPiper – Web tool to create mock HTTP dynamic endpoints▲5

    2021 · httpiper.com

21. 21AA
    APIMock – API Mock server with domain support and proxy to record mocks▲6

    2020 · github.com

22. 22BA
    Bernoulli – An A/B testing service that supports full stack development▲10

    2014 · bernoulli.io

23. 23VP
    Vulcand – Proxy for microservices and API▲11

    2014 · github.com

24. 24AO
    AIMock – One Mock Server for Your AI Stack▲7

    Apr 2026 · github.com

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