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<!doctype html>
<html lang="en-US">
<head>
<link rel="alternate" href="https://lsfusion.org/" hreflang="en" />
<link rel="alternate" href="https://lsfusion.org/ru/" hreflang="ru" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<meta name="description" content="lsFusion is the most declarative and low-code business / web application development platform ever. Language-based. Open-source." />
<meta name="keywords" content="business application, web application, development platform, DSL, low-code, ERP platform, reactive programming, function-level, RAD, rapid application development, modular, open source, free application development" />
<title>lsFusion | Business and Web Application Development Platform</title>
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<link href="/css/app.css" rel="stylesheet" type="text/css" />
<link rel="apple-touch-icon" sizes="180x180" href="/imgs/favicon/apple-touch-icon.png">
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<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-38678623-1');
</script>
</head>
<body>
<nav>
<div class="inner">
<h2><a href="/" title="Go to Homepage">lsFusion</a></h2>
<a class="menu-link" href="#menu">Menu</a>
<ul class="nav">
<li><a href="/features">Features</a></li>
<li><a href="/compare">Compare</a></li>
<li><a href="https://docs.lsfusion.org/Install/" target="_blank" title="Click to open in a new window">Install</a></li>
<li><a href="https://docs.lsfusion.org" target="_blank" title="Click to open in a new window">Learn</a></li>
<li><a href="/support">Support</a></li>
<li><a href="/solutions">Solutions</a></li>
<li id="languages">
<div class="language">
<strong>EN</strong>
<ul>
<li><span class="current">En</span></li>
<li><a href="/ru/">Ру</a></li>
</ul>
</div>
</li>
</ul>
</div>
</nav>
<header id="homeheader">
<div class="inner">
<h1>
The <em class="sp">most <span data-textswitcher="low-code">declarative</span></em><br />
<span data-textswitcher="web">business</span> application<br />
development <span data-textswitcher="language">platform</span> <em class="sp">ever</em>
</h1>
<p>Develop and customize your solutions a lot faster and simpler. Significantly increase their performance, modularity and integrity. Up to x10 for complex solutions. And it's open source.</p>
<nav>
<a href="try">Try Online</a>
<a href="https://demo.lsfusion.org/mycompany" target="_blank" title="Click to view it in a new window">Demo App</a>
<a href="https://github.com/lsfusion" target="_blank" title="Click to view it in a new window">GitHub</a>
</nav>
<div id="home-videos">
<ul>
<li><a href="https://www.youtube.com/watch?v=T4zX1gGNo-0" data-youtubeid="T4zX1gGNo-0" target="_blank" title="Click to watch the video" class="video">lsFusion - the most declarative web/business application development platform ever</a></li>
</ul>
</div>
</div>
</header>
<div class="inner">
<ul class="home-links1" id="blog">
<li>
<a href="https://habr.com/ru/company/lsfusion/blog/" target="_blank" class="inner" title="Click to read our blog">
<strong>Blog</strong>
<span>Here you can read various articles about the platform, find out about its new features and discuss all about lsFusion.</span>
</a>
</li>
<li>
<a href="https://docs.lsfusion.org/Learning_materials/" target="_blank" class="inner" title="Click to read our documentation">
<strong>How to use?</strong>
<span>Here you can find examples of simple ready-to-use applications in lsFusion, and learn how to use lsFusion to solve common issues.</span>
</a>
</li>
</ul>
<h2>Based on the <em class="sp">most advanced</em> programming paradigms</h2>
<ul class="home-links2">
<li>
<div class="inner">
<h4>Function-level</h4>
<p>Pure functions with no variables and side effects. Limited but large number of operators of their creation. Capability to iterate over all function values.</p>
</div>
</li>
<li>
<div class="inner">
<h4>Reactive</h4>
<p>Any data is automatically incrementally updated whenever any other data it uses is changed.</p>
</div>
</li>
<li>
<div class="inner">
<h4>Event-driven</h4>
<p>The control flow is split into a set of small events, whose execution order is automatically built by the platform. Extensive capabilities for getting what exactly has been changed between events.</p>
</div>
</li>
<li>
<div class="inner">
<h4>Object-oriented</h4>
<p>Inheritance and polymorphism, including multiple ones. Extensive encapsulation capabilities. Optional explicit typing.</p>
</div>
</li>
<li>
<div class="inner">
<h4>Constraint</h4>
<p>Declarative rules instead of imperative checks. This rules can never be broken and can be used to automatically build required UI.</p>
</div>
</li>
<li>
<div class="inner">
<h4>Meta</h4>
<p>Code templating and autogeneration. Both in IDE and in run-time.</p>
</div>
</li>
</ul>
<h2>
<em class="sp">Why</em> should
<span class="dropdown" data-apply-to="home-links3">
<em>you</em>
<ul>
<li class="active">you</li>
<li>developer</li>
<li>administrator</li>
<li>user</li>
<li>business</li>
</ul>
</span>
choose lsFusion?
</h2>
<ul class="home-links3 everyone" id="home-links3">
<li>
<h2 class="inner">
<strong>Develop fast</strong>
<span><span class="business">Developing and implementing new features takes hours instead of weeks. Faster than ever.</span> <span class="developer">Ready-to-use middle-tier ERP system with only 25K lines of code. Fully-featured IDE based on Intellij IDEA. Perfect for Agile development.</span></span>
<a href="/features#develop_rapidly">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Develop simple</strong>
<span><span class="developer">No need to learn dozens of paradigms and languages or constantly choose between procedures and queries, client and server, forms and reports, OLTP and OLAP. One paradigm. One language. Develop all at once</span> <span class="administrator">and install with a single action.</span> <span class="business">The entry threshold is lower than ever before.</span></span>
<a href="/features#develop_simply">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Any complexity</strong>
<span><span class="developer">From CRUD to ERP. Near-perfect modularity. Develop in parallel. Reuse code.</span> Deliver <span class="user">only what is actually needed.</span></span>
<a href="/features#any_complexity">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Any amount of data</strong>
<span>Billions of records. Terabytes of data. NoORM, YesSQL. <span class="business">Lots of optimizers at each level will get the most out of your existing infrastructure</span> and ensure <span class="user">minimum response time even with large amount of data.</span></span>
<a href="/features#any_amount_of_data">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Any number of users</strong>
<span><span class="user">Ultimate concurrency. </span><span class="administrator user business">High fault tolerance</span><span class="business"> and scalability.</span> Thousands of simultaneous users <span class="administrator">in a single database.</span></span>
<a href="/features#any_number_of_users">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Any infrastructure</strong>
<span><span class="administrator business">Any OS. Any relational DBMS. Web or desktop.</span> <span class="business">Any communication channels. Hundreds of concurrent users even at 1MB/s. Cloud-ready.</span></span>
<a href="/features#any_infrastructure">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Trust the system</strong>
<span><span class="developer"><a href="https://en.wikipedia.org/wiki/ACID" target="_blank">ACID</a> right out of the box. No manual locks or transaction management. All constraints and events are global. High declarativeness.</span> <span class="administrator user">Data is as consistent as possible regardless of <a href="https://en.wikipedia.org/wiki/Race_condition" target="_blank">race conditions</a>, hardware failures, or developer errors.</span></span>
<a href="/features#trust_the_system">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Manage the system</strong>
<span><span class="administrator">Interpreter. Process monitor. Profiler. Scheduler. Chat. Lots of logs. Always know what's going on and fix any problems as soon as possible.</span></span>
<a href="/features#manage_the_system">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Communicate with the system</strong>
<span><span class="developer">Open data-storage structure. Transparent integration interfaces. Open-source software. Built on the world's most popular technologies.</span></span>
<a href="/features#communicate_with_the_system">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Own the system</strong>
<span>LGPL v3 license. <span class="business">Free use and distribution.</span> <span class="administrator">No keys or DRM.</span> <span class="developer">Permission to modify the platform.</span> <span class="business">Protection against patents. Free.</span></span>
<a href="/features#own_the_system">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Extend the system</strong>
<span><span class="user">Get the most out of all user interfaces without involving a developer. Group, filter, sort, upload, log, configure, copy / paste, apply /cancel, change everything, everywhere and for everyone. Just like in Excel, and even more.</span></span>
<a href="/features#extend_the_system">Learn more</a>
</h2>
</li>
<li>
<h2 class="inner">
<strong>Scale the system</strong>
<span><span class="developer">Internationalize any line with a single click.</span> <span class="business">Flexible security policy at all levels.</span> <span class="administrator">Install the client with a single click for all logics at once.</span> <span class="business">Built-in encryption of transmitted data. Corporate-ready.</span></span>
<a href="/features#scale_the_system">Learn more</a>
</h2>
</li>
</ul>
<h2>Find out <em class="sp">more</em> about lsFusion</h2>
<ul class="home-links4">
<li>
<a href="/features" class="inner">
<strong>Features</strong>
<span>Learn what exactly makes lsFusion so powerful development platform.</span>
</a>
</li>
<li>
<a href="/compare" class="inner">
<strong>Compare</strong>
<span>Find out which of these features you can't get with other platforms.</span>
</a>
</li>
</ul>
<div id="home-footer">
<h3>Solutions</h3>
<ul>
<li>
<a href="https://mycompany.lsfusion.org" target="_blank" class="inner">
<strong>MyCompany</strong>
<span>Open-source solution for small businesses</span>
</a>
</li>
<li>
<a href="https://lsfusion-erp.com" target="_blank" class="inner">
<strong>lsFusion ERP</strong>
<span>ERP-solution for large retail and wholesale companies</span>
</a>
</li>
<li>
<a href="https://lsfusion-erp.com/modules.html#wms" class="inner" target="_blank">
<strong>lsFusion WMS</strong>
<span>Specialized solution for warehouse management.</span>
</a>
</li>
<li>
<a href="/solutions" class="inner" title="Click to view more solutions">
<strong>More solutions</strong>
<span>Check out the other solutions on lsFusion</span>
</a>
</li>
</ul>
</div>
</div>
<footer>
<div class="inner">
<nav>
<ul>
<li><h3>Try</h3></li>
<li><a href="/try">Online</a></li>
<li><a href="https://docs.lsfusion.org/Development_auto/" target="_blank" title="Click to open in a new window">Offline</a></li>
</ul>
<ul>
<li><h3>Learn</h3></li>
<li><a href="https://docs.lsfusion.org/Paradigm/" target="_blank" title="Click to open in a new window">Paradigm</a></li>
<li><a href="https://docs.lsfusion.org/Examples/" target="_blank" title="Click to open in a new window">Examples</a></li>
<li><a href="https://www.youtube.com/playlist?list=PL8FG-RmfUn1Oc30Vaw1Em3DeSzV5ElQ43" target="_blank" title="Click to open in a new window">Video Tutorials</a></li>
</ul>
<ul>
<li><h3>Install</h3></li>
<li><a href="https://docs.lsfusion.org/Execution_auto/" target="_blank" title="Click to open in a new window">Automatically</a></li>
<li><a href="https://docs.lsfusion.org/Execution_manual/" target="_blank" title="Click to open in a new window">Manually</a></li>
</ul>
<ul>
<li><h3>Solutions</h3></li>
<li><a href="https://mycompany.lsfusion.org" target="_blank" title="Click to open in a new window">MyCompany</a></li>
<li><a href="https://lsfusion-erp.com" target="_blank" title="Click to open in a new window">lsFusion ERP</a></li>
<li><a href="https://lsfusion-erp.com/modules.html#wms" target="_blank" title="Click to open in a new window">lsFusion WMS</a></li>
<li><a href="/solutions">More solutions</a></li>
</ul>
<ul class="social">
<li><h3>Social</h3></li>
<li class="git"><a href="https://github.com/lsfusion" target="_blank" title="Click to open in a new window">Github</a></li>
<!--li class="tw"><a href="https://twitter.com/lsfusion" target="_blank" title="Click to open in a new window">Twitter</a></li-->
<li class="blog"><a href="https://habr.com/en/company/lsfusion/blog/" target="_blank" title="Click to open in a new window">Blog</a></li>
<li class="ln"><a href="https://www.linkedin.com/company/lsfusion/" target="_blank" title="Click to open in a new window">LinkedIn</a></li>
<!--li class="fb"><a href="#" target="_blank">Facebook</a></li>-->
</ul>
<ul class="community">
<li><h3>Community</h3></li>
<li class="tel"><a href="https://t.me/lsfusion_official " target="_blank" title="Follow us on Telegram">Telegram</a></li>
<li class="git"><a href="https://github.com/lsfusion/platform/issues" target="_blank" title="Click to open in a new window">Github Issues</a></li>
<li class="sl"><a href="https://join.slack.com/t/lsfusion/shared_invite/zt-2klihpl2q-h6ol~nDRPky~O1uHC14Dwg" target="_blank" title="Click to open in a new window">Slack</a></li>
<li class="st"><a href="https://stackoverflow.com/questions/tagged/lsfusion" target="_blank" title="Click to open in a new window">StackOverflow</a></li>
<li class="em"><a href="mailto:[email protected]" target="_blank" title="Click to open in a new window">Email</a></li>
</ul>
</nav>
<div id="absfooter">
<p id="copyright">© <script>document.write((new Date()).getFullYear())</script> lsFusion Foundation</p>
<ul>
<li><a href="mailto:[email protected]">Report a bug</a></li>
</ul>
</div>
</div>
</footer>
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