Top 8 TypeScript mock-server Projects

mockoon

48 5,864 9.2 TypeScript

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

Project mention: Handling Firebase Notifications in Flutter: Practical Tips | dev.to | 2024-01-14

Mockoon - Used as a logging server instead of using print in the console.

prism

25 4,006 8.5 TypeScript

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations. (by stoplightio)

Project mention: How to Automatically Consume RESTful APIs in Your Frontend | dev.to | 2024-01-25

Since the OpenAPI can effectively describe our resources, we can reuse it to generate a dummy server that can be later used for development and testing purposes without bootstrapping any actual services. There some tools available that can help us with this task, such as Prism, OpenAPI Mock, OpenAPI Backend and the MSW library we have already seen.

SurveyJS

surveyjs.io sponsored

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
smocker

1 1,113 7.2 TypeScript

Smocker is a simple and efficient HTTP mock server and proxy

Project mention: Smocker: Smocker is a simple and efficient HTTP mock server and proxy | news.ycombinator.com | 2024-02-21

atmo

1 818 0.0 TypeScript

:heavy_check_mark: Mock data for your prototypes and demos. Remote deployments to Zeit now.
mockttp

18 736 8.1 TypeScript

Powerful friendly HTTP mock server & proxy library

Project mention: Client-side proxies – a better way to individualise the Internet? (2000) | news.ycombinator.com | 2023-07-23

Interesting how the world has changed since the 2000s here - nowadays the ecosystem is far better, so it's much easier to set up tools to mess around with this, but the use of HTTPS everywhere makes it more difficult in more advanced cases (e.g. you'll often need to fight certificate configuration in individual clients).
In part because of that, browser extensions have become the main way to go for this kind of local web modification, but now there's new restrictions slowly coming in there too.
If you want to mess around with HTTP-level rewriting for yourself though, I maintain a Node.js library for easily writing tiny custom HTTP & HTTPS-intercepting proxies that makes it very easy: https://github.com/httptoolkit/mockttp/. Others have built more specific tooling on top too, like this web page modification proxy: https://github.com/OnkelTem/wmod-proxy
There's a walkthrough for setting up a quick local proxy & rewriting your own browser traffic here: https://httptoolkit.com/blog/javascript-mitm-proxy-mockttp/

mockoon.com

1 18 9.2 TypeScript

Mockoon application official website repository and documentation
fake-api-middleware

1 10 4.6 TypeScript

Express/Connect middleware for returning dummy reponses
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
ts-openapi-generator

1 8 0.0 TypeScript

:hammer_and_pick: Generate API, Model, and Mocks files from Swagger/OpenAPI to use in any project (java, ts, js, PHP, angular...)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).