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title: WireMock

description: WireMock is a flexible API mocking tool for fast, robust and comprehensive testing.

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<h1 class="page__title homepage__title">WireMock</h1>

<h2 class="homepage__subtitle">Mock your APIs for fast, robust and comprehensive testing</h2>

<p>WireMock is a simulator for HTTP-based APIs. Some might consider it a <strong>service virtualization</strong> tool or a <strong>mock server</strong>.<br><br>

It enables you to <strong>stay productive</strong> when an API you depend on <strong>doesn't exist</strong> or isn't complete.

It supports testing of <strong>edge cases and failure modes</strong> that the real API won't reliably produce.

And because it's fast it can <strong>reduce your build time</strong> from hours down to minutes.<p>

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<p class="mocklab-section__copy-paragraph">In a hurry? MockLab is a <strong>hosted API mocking service</strong> built on WireMock.</p>

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Get immediate access to all of WireMock's features, without the hassle of configuring servers, DNS or SSL certificates.

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<a id="mocklab-callout-try-it-now" href="https://app.mocklab.io/login?for=signup&utm_source=wiremock.org&utm_medium=homepage-callout_try-it-now&utm_campaign=homepage_baseline" class="mocklab-cta mocklab-cta--primary">Try it now</a>

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<div class="archive__item-body"><h2 class="archive__item-title">Flexible Deployment</h2>

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<p>Run WireMock from within your Java application, JUnit test, Servlet container or as a standalone process.</p>

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<p><a href="/docs/getting-started/" class="btn">Learn More</a></p></div>

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<div class="archive__item-body"><h2 class="archive__item-title">Powerful Request Matching</h2>

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<p>Match request URLs, methods, headers cookies and bodies using a wide variety of strategies. First class support for JSON and XML.</p>

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<p><a href="/docs/request-matching/" class="btn ">Learn More</a></p></div>

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<div class="archive__item-body"><h2 class="archive__item-title">Record and Playback</h2>

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<p>Get up and running quickly by capturing traffic to and from an existing API.<br><br></p>

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<p><a href="/docs/record-playback/" class="btn ">Learn More</a></p></div>

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<h2 class="homepage-section__heading homepage-section__heading--centred">Who uses WireMock?</h2>

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