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4<script id=bw-fido2-page-script /></svg><h2>Free and Open Source</h2><p>RabbitMQ is a powerful, enterprise grade open source messaging and streaming broker that enables efficient, reliable and versatile communication for applications â perfect for distributed microservices, real-time data, and IoT.<p>Free under the <a href=https://www.tldrlegal.com/license/mozilla-public-license-2-0-mpl-2 target=_blank rel="noopener noreferrer">Mozilla Public License 2.0</a>, it has a vibrant global community. Dive in with our easy-to-use <a href=/docs>docs</a> or <a href=/github>contribute</a> to shape its future!</section><section><svg width=70.007996 height=70 viewBox="0 0 70.007996 70" fill=none id=svg1 xmlns=http://www.w3.org/2000/svg><defs id=defs1 /><rect style="font-variation-settings:'wght' 500" id=rect2 width=13.009497 height=23.676506 x=53.622555 y=43.173656 rx=0 ry=0 fill=#00c1d5 fill-opacity=1 fill-rule=evenodd stroke-width=4.6672 stroke-linecap=round stroke-linejoin=round /><rect style="font-variation-settings:'wght' 500" id=rect1 width=13.009497 height=23.676506 x=3.5535684 y=42.925335 rx=0 ry=0 fill=#00c1d5 fill-opacity=1 fill-rule=evenodd stroke-width=4.6672 stroke-linecap=round stroke-linejoin=round /><path fill-rule=evenodd clip-rule=evenodd d="M 35.003973,0 C 15.339908,0.36951477 -0.31563432,16.584182 0.00483341,36.249064 V 69.998261 H 13.004559 c 3.773779,0.08389 6.904301,-2.901246 6.999745,-6.674791 V 46.67383 C 19.90886,42.900286 16.778338,39.915147 13.004559,39.99904 H 5.0047047 V 36.249064 C 4.6837649,19.345296 18.101138,5.3688627 35.003973,4.9998741 51.906808,5.3688627 65.32418,19.345296 65.003194,36.249064 v 3.749976 h -7.999808 c -3.773778,-0.08389 -6.9043,2.901246 -6.999744,6.67479 v 16.67461 c 0.108979,3.763743 3.235417,6.73383 6.999744,6.649821 H 70.003161 V 36.249064 C 70.323565,16.584182 54.668038,0.36951477 35.003973,0 Z M 13.004559,44.999007 c 1.009398,-0.07304 1.894649,0.668343 1.999894,1.67494 v 16.674609 c -0.105245,1.006598 -0.990496,1.747865 -1.999894,1.67494 H 5.0047163 V 44.999007 Z m 41.998933,1.67494 V 63.32347 c 0.105362,1.006598 0.990496,1.747982 1.999894,1.675057 h 7.999808 v -19.99952 h -7.999808 c -1.009398,-0.07304 -1.894532,0.668343 -1.999894,1.67494 z" fill=#1d428a id=path1 fill-opacity=1 stroke-width=1.1668 /></svg><h2>Commercial offering</h2><p>If youâre running mission-critical apps, <a href=https://www.vmware.com/products/app-platform/tanzu-rabbitmq target=_blank rel="noopener noreferrer">Tanzu RabbitMQâs enterprise-grade version</a> is essential. It ensures your apps stay reliable and secure with <a href=/contact#tanzu-rabbitmq>24/7 expert support from the engineers who make the product</a>, longer lifecycle, disaster recovery, cloud cost savings, and industry compliance.<p><a href=/commercial-features>See our commercial features</a> and <a href=/commercial-features#support-timelines>support timelines</a>.<div><a href=https://go-vmware.broadcom.com/contact-us target=_blank rel="noopener noreferrer" class="button button--primary">Contact Us</a>Â <a class="button button--primary" href=/contact#consulting>Find a Partner</a></div></section></div></div></div><div class=why_pDBc><div class=container_bfhl><h1>Why RabbitMQ?</h1><p>RabbitMQ is a reliable and mature messaging and streaming broker, which is easy to deploy on cloud environments, on-premises, and on your local machine. It is currently used by millions worldwide.<div class=flex_columns_uS90><section><h2>Interoperable</h2><p>RabbitMQ <a href=/docs/protocols>supports several open standard protocols</a>, including AMQP 1.0 and MQTT 5.0. There are multiple client libraries available, which can be used with your programming language of choice, just pick one. No vendor lock-in!</section><section><h2>Flexible</h2><p>RabbitMQ provides many options you can combine to define how your messages go from the publisher to one or many consumers. <a href=/tutorials/tutorial-four-python>Routing</a>, <a href=/tutorials/amqp-concepts#exchange-topic>filtering</a>, <a href=/docs/streams>streaming</a>, <a href=/docs/federation>federation</a>, and so on, you name it.</section><section><h2>Reliable</h2><p>With the ability to <a href=/docs/reliability>acknowledge message delivery</a> and to <a href=/docs/quorum-queues>replicate messages across a cluster</a>, you can ensure your messages are safe with RabbitMQ.</section></div></div></div><div class=usecases_heading_XwYf><div class=container_bfhl><h1>Examples of common use cases</h1><p>Here are a few common use cases we hear about from the community or our customers. This should help you better understand what RabbitMQ is and how it can help.</div></div><div class=usecases_GD__><div class=container_bfhl><div class="theme-tabs-container tabs-container tabList__CuJ"><ul role=tablist aria-orientation=horizontal class=tabs><li role=tab tabindex=0 aria-selected=true class="tabs__item tabItem_LNqP tabs__item--active">Decoupling services<li role=tab tabindex=-1 aria-selected=false class="tabs__item tabItem_LNqP">RPC<li role=tab tabindex=-1 aria-selected=false class="tabs__item tabItem_LNqP">Streaming<li role=tab tabindex=-1 aria-selected=false class="tabs__item tabItem_LNqP">IoT</ul><div class=margin-top--md><div role=tabpanel class=tabItem_Ymn6><div class=flex_columns_uS90><section><h2>Decoupling interconnected services</h2><p>You have a backend service that needs to send notifications to end users. There are two notification channels: emails and push notifications for the mobile application.<p>The backend publishes the notification to two queues, one for each channel. Programs that manage emails and push notification subscribe to the queue they are interested in and handle notifications as soon as they arrive.<p><strong>â¡ Benefits</strong><ul><li>RabbitMQ absorbs the load spike.<li>You can do some maintenance on the notification managers without interrupting the whole service.</ul></section><section></section></div></div><div role=tabpanel class=tabItem_Ymn6 hidden><div class=flex_columns_uS90><section><h2>Remote Procedure Call</h2><p>You own a concert hall. Tickets for the shows are sold on multiple websites and physical kiosks. Orders from all channels must go through a complex process to determine if a customer effectively get their tickets, depending on availability. The website or kiosk expect to get an answer for the order in minimal time.<p>Orders are published to a queue in RabbitMQ with a correlation ID. The caller that pushed the order then subscribes to another queue and waits for an answer with that same correlation ID.<p>To achieve low latency, a <a href=/docs/classic-queues>classic queue</a> is a good fit here but it is at the expense of less safety â the caller can still retry. If the order
4cannot be lost, you might prefer to use a combination of <a href=/docs/confirms>acknowledgments</a> and <a href=/docs/quorum-queues>quorum queues</a> to ensure a message is safe once confirmed.<p>This topology allows the processing of orders to be serialized to serve them in a first come first served order. This avoids the need for transactions.<p><strong>â¡ Benefits</strong><ul><li>A RabbitMQ client can be a publisher and a consumer at the same time.<li>RabbitMQ can be used to <a href=/tutorials/tutorial-six-python>dispatch RPC calls</a>.</ul></section><section></section></div></div><div role=tabpanel class=tabItem_Ymn6 hidden><div class=flex_columns_uS90><section><h2>Streaming</h2><p>You run a video platform. When a user uploads a new video, you have multiple tasks to complete when the video is safely stored: run some post-upload analysis, transcode lower quality copies of the video, notify other users subscribed to the author's creations, and so on.<p>The upload service appends âNew videoâ events to a RabbitMQ stream. Multiple backend applications can subscribe to that stream and read new events independently of each other. Users must be notified right away, but the post-upload analysis can wait and run once a day.<p><strong>â¡ Benefits</strong><ul><li><a href=/docs/streams>Streams</a> are very efficient and avoids the need to duplicate messages.<li>A consumers can go back and forth in the stream even if there are concurrent consumers.</ul></section><section></section></div></div><div role=tabpanel class=tabItem_Ymn6 hidden><div class=flex_columns_uS90><section><h2>IoT</h2><p>You provide package delivery services across the entire galaxy. You have a swarm of space drones that need to report their status on a regular basis to a server hosted on exoplanet <em>Kepler-438 b</em>. Unfortunately, the network connectivity is not greatâ¦<p>Each space drone runs a local RabbitMQ standalone node that buffers their report until a connection is possible with the upstream RabbitMQ.<p>When planets are aligned, the drone's RabbitMQ shovels all reports to the upstream RabbitMQ.<p><strong>â¡ Benefits</strong><ul><li>RabbitMQ deployments can be chained to cater for different needs in your service, using features such as <a href=/docs/shovel>shovels</a> and <a href=/docs/federation>federation</a>.<li><a href=/docs/mqtt>MQTT</a> is well suited for millions of concurrent connections.</ul></section><section></section></div></div></div></div></div></div><div class=testimonies_gVVB><div class=container_bfhl><h1>What are users saying?</h1><p>RabbitMQ is used by millions around the world. Here is what some of our users are saying about it!<div class=flex_columns_uS90><section class=blockquote_Fq1N><blockquote>RabbitMQ is the one message broker that HASN'T given me grief in my career.</blockquote><p class=attribution_f_uN>â <a href="https://news.ycombinator.com/item?id=23269692" target=_blank rel="noopener noreferrer"><em>codeduck</em> on Hacker News</a></section><section class=blockquote_Fq1N><blockquote>I've been running RabbitMQ for >8 years in production, once even in a fleet of 180 buses where every bus had an instance of rabbitmq running locally. Never had a single issue in all those years.</blockquote><p class=attribution_f_uN>â <a href="https://news.ycombinator.com/item?id=23261707" target=_blank rel="noopener noreferrer"><em>gog</em> on Hacker News</a></section></div></div></div></main></div><footer class="theme-layout-footer footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class=footer__title>Learn about RabbitMQ</div><ul class="footer__items clean-list"><li class=footer__item><a class=footer__link-item href=/tutorials>Getting Started</a><li class=footer__item><a class=footer__link-item href=/docs>Documentation</a><li class=footer__item><a class=footer__link-item href=/blog>Blog</a><li class=footer__item><a class=footer__link-item href=/docs/compare>Compare with Other Brokers</a><li class=footer__item><a class=footer__link-item href=/security>Security</a></ul></div>
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