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Mock Service Worker

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The industry standard for API mocking in JavaScript.

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Mock Service Worker is all of us

Our contributors 35

Thank you for supporting Mock Service Worker.

Marco Moretti

Core Contributor

Tim Deschryver

Core Contributor

Matt Sutkowski

Core Contributor

Artem Zakharc...

Admin

Sentry

$5,000 USD

GitHub Sponsors

$2,804 USD

Chromatic

Silver sponsor

$2,000 USD

Toss

Bronze sponsor

$1,300 USD

Shogun Labs, ...

$1,290 USD

Michael Landis

Sponsor

$1,275 USD

Principal Fin...

$630 USD

FundOSS

$547 USD

commercetools...

$500 USD

Incognito

Bronze sponsor

$500 USD

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Financial contribution to Mock Service Worker

Credit from Sentry to Mock Service Worker •

+$5,000.00USD
Completed
Contribution #988261

Design, development, and maintenance of MSW v3.0.

Category
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from Artem Zakharchenko to Mock Service Worker •
-$600.00 USD
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+$200.00USD
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Contribution #986579
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Total raised

$17,111.86 USD

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Estimated annual budget

$8,980.00 USD

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News from Mock Service Worker

Updates on our activities and progress.

Announcing data modeling solution

We're thrilled to announce "Data"—data modeling and querying solution for testing and developing JavaScript applications (read the official announcement:...
Read more
Published on April 21, 2021 by Artem Zakharchenko

Node.js interception revamped

We are excited to have rewritten the Node.js request interception, improving its internal logic and public API (no breaking changes for MSW users). This rewrite allowed us to introduce browser-oriented interceptors to catch requests done vi...
Read more
Published on April 21, 2021 by Artem Zakharchenko

Announcing iframe support

With the 0.27.0 release, MSW now supports the interception of requests issued in an iframe. That includes nested iframes as well. We are excited to ship this fe...
Read more
Published on April 21, 2021 by Artem Zakharchenko

About

Mock Service Worker (MSW) is an API mocking library that has long become an industry standard. It is praised for its clever usage of Service Workers to achieve seamless network interception in the browser and its ground-breaking work on the interception algorithms in Node.js.

MSW promotes standard-first API mocking and offers the biggest feature set in the entire ecosystem, supporting HTTP, GraphQL, SSE, and WebSocket mocks for uncompromised testing and smooth API-first development.

Our team

Marco Moretti

Core Contributor

Tim Deschryver

Core Contributor

Matt Sutkowski

Core Contributor

Artem Zakharc...

Admin