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1<a href="https://open.spotify.com/episode/6gRiIJSWN515tAvZuMAwRR" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/allegro-logo.svg" alt="https://open.spotify.com/episode/6gRiIJSWN515tAvZuMAwRR" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://open.spotify.com/episode/3XBlKY3x4vVojuay4oSh8g" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/carousel/olx.svg" alt="https://open.spotify.com/episode/3XBlKY3x4vVojuay4oSh8g" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://open.spotify.com/episode/6oZdJE7XU1GF6Dlir6tP50" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/carousel/shazam.svg" alt="https://open.spotify.com/episode/6oZdJE7XU1GF6Dlir6tP50" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://medium.com/insiden26/5-reasons-why-n26-is-moving-to-kotlin-f920b184ab58" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/carousel/n26.svg" alt="https://medium.com/insiden26/5-reasons-why-n26-is-moving-to-kotlin-f920b184ab58" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://medium.com/memobank/cuddling-with-kotlin-35f4f96931bb" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/carousel/memo-bank.svg" alt="https://medium.com/memobank/cuddling-with-kotlin-35f4f96931bb" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://open.spotify.com/episode/7rcwW7gNFIOrDqy6tgA1HU" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/carousel/ktor.svg" alt="https://open.spotify.com/episode/7rcwW7gNFIOrDqy6tgA1HU" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://youtu.be/QExksqeNWbY?si=KSy63mxDTh07DYPM" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/spring-logo.svg" alt="https://youtu.be/QExksqeNWbY?si=KSy63mxDTh07DYPM" class="customer-logo-marquee_logo__IahwP"/></a><a href="https://kotlin.link/articles/Corda-Kotlin.html" target="_blank" rel="noopener noreferrer" data-testid="customers-link"><img src="/images/case-studies/corda-logo.svg" alt="https://kotlin.link/articles/Corda-Kotlin.html" class="customer-logo-marquee_logo__IahwP"/></a></div></div></div><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset" id="safety"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Safety: fewer production bugs and crashes</h2><div class="features-switcher_slideshow__73UHh"><div class="features-switcher_slidesPanel__o7ZZk"><ul class="features-switcher_slidesSwitcher__wW26g"><li class=""><button type="button" tabindex="0" class="features-switcher_tab__UfD6_ features-switcher_tabActive__gnobR"><p class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 features-switcher_tabTitle__Q7_oK">Null-safety</p><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_hard_1owszn1_1 features-switcher_tabDescription__GA4wh">Switching backend development to Kotlin significantly reduces crashes at runtime.</p></button></li><li class="features-switcher_offsettop12__64E94"><button type="button" tabindex="0" class="features-switcher_tab__UfD6_"><p class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 features-switcher_tabTitle__Q7_oK">Immutability</p></button></li><li class="features-switcher_offsettop12__64E94"><button type="button" tabindex="0" class="features-switcher_tab__UfD6_"><p class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 features-switcher_tabTitle__Q7_oK">Type-safety</p></button></li></ul></div><div class="features-switcher_slides__5Z3bt"><div class="features-switcher_slide__yrbOm features-switcher_slideVisible__NHvvb"><div class="features-switcher_slide__yrbOm"><button data-test="button" type="button" class="_main_1dmt5cy_56 _modeRock_1dmt5cy_36 _sizeXs_1dmt5cy_20 _alignIconLeft_1dmt5cy_49 _dark_1dmt5cy_9 features-switcher_copyButton__0rJYL"><span class="_content_1dmt5cy_224" data-rs-internal="button__content" data-test="button__content">
1Copy Kotlin code</span></button><div class="code-hightlight_codeHighlight__eAyEL features-switcher_codeBlock__e2aiO"></div></div></div><div class="features-switcher_slide__yrbOm features-switcher_slideHidden__zNaMm"><div class="features-switcher_slide__yrbOm"><button data-test="button" type="button" class="_main_1dmt5cy_56 _modeRock_1dmt5cy_36 _sizeXs_1dmt5cy_20 _alignIconLeft_1dmt5cy_49 _dark_1dmt5cy_9 features-switcher_copyButton__0rJYL"><span class="_content_1dmt5cy_224" data-rs-internal="button__content" data-test="button__content">Copy Kotlin code</span></button><div class="code-hightlight_codeHighlight__eAyEL features-switcher_codeBlock__e2aiO"></div></div></div><div class="features-switcher_slide__yrbOm features-switcher_slideHidden__zNaMm"><div class="features-switcher_slide__yrbOm"><button data-test="button" type="button" class="_main_1dmt5cy_56 _modeRock_1dmt5cy_36 _sizeXs_1dmt5cy_20 _alignIconLeft_1dmt5cy_49 _dark_1dmt5cy_9 features-switcher_copyButton__0rJYL"><span class="_content_1dmt5cy_224" data-rs-internal="button__content" data-test="button__content">Copy Kotlin code</span></button><div class="code-hightlight_codeHighlight__eAyEL features-switcher_codeBlock__e2aiO"></div></div></div></div></div></div></section><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset" id="performance"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Performance: optimized for high-load</h2><div class="performance_cards__sjvjP"><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Kotlin coroutines</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Run 10,000+ lightweight tasks on just a few threads</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Inline functions</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Less overhead as the compiler copies function bodies at the call site</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Inline classes</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Wrap primitives without extra allocations or garbage collector pressure</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">The JVM</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Decades of fine-tuning for high throughput and low latency</p></div></div><div class="performance_videos__mYfNl ktl-offset-top-l"><div class="performance_videoCard__o7NmP"><div><div class="ktl-youtube-player-module_youtube-player_aSb0a"><div class="ktl-youtube-player-module_preview_SuIdr"><img src="https://img.youtube.com/vi/hQrFfwT1IMo/maxresdefault.jpg" alt="" class="ktl-youtube-player-module_image-preview_qXCFf"/><button type="button" aria-label="Play video" class="ktl-youtube-player-module_play-button_SNPG7 ktl-youtube-player-module_play-button_white_jsj-J"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M19 12 8 4v16l11-8z"></path></svg></button></div><div class="ktl-youtube-player-module_player_nH-tB"></div></div></div><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 performance_videoCardDescription__31cIT">Watch the full story on Kotlin coroutines from their creator, Roman Elizarov.</p></div><div class="performance_videoCard__o7NmP"><div><div class="ktl-youtube-player-module_youtube-player_aSb0a"><div class="ktl-youtube-player-module_preview_SuIdr"><img src="https://img.youtube.com/vi/TT62OL48Vl0/maxresdefault.jpg" alt="" class="ktl-youtube-player
1-module_image-preview_qXCFf"/><button type="button" aria-label="Play video" class="ktl-youtube-player-module_play-button_SNPG7 ktl-youtube-player-module_play-button_white_jsj-J"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M19 12 8 4v16l11-8z"></path></svg></button></div><div class="ktl-youtube-player-module_player_nH-tB"></div></div></div><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 performance_videoCardDescription__31cIT">Watch Adobeâs talk on using coroutines to scale under massive load.</p></div></div></div></section><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset" id="ecosystem"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Rich JVM ecosystem for backend development</h2><div class="ecosystem_cards__XWTwR"><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Seamless Java integration</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Full interop with Java allows using any JVM library or framework</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Enhanced Java frameworks with Kotlin</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Kotlin takes frameworks that were originally written in Java and enhances them with expressive features, making the API clearer and more intuitive</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Gradual Kotlin adoption</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">100% interoperability between Java and Kotlin allows you to adopt Kotlin incrementally and on your own terms</p></div><div class="card_card__yUQZ6"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardTitle__Rgfdb">Rich framework ecosystem</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 card_cardDescription__F4Jcz">Quickly develop backend solutions with the most popular frameworks, including Spring, Hibernate, Ktor, Koog, MCP Kotlin SDK, and others.</p></div></div><div class="ecosystem_bigCards__UZLAB ktl-offset-top-l"><a class="ecosystem_ecosystemCard__7rmk_" href="https://spring.io/guides/tutorials/spring-boot-kotlin/"><img src="/_next/static/media/spring.770eebcd.svg" alt="Spring Logo"/><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">With its versatile set of features, Spring is the worldâs most popular Java framework. When itâs paired with Kotlin, and its concise syntax, the two make the ultimate combo for application development.</p><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1"><span class="_rs-link_1owszn1_1 _rs-link_mode_standalone_1owszn1_1 _rs-link_external_1owszn1_1 _rs-typography_theme_dark_1owszn1_1">Read tutorial</span></p></a><a class="ecosystem_ecosystemCard__7rmk_" href="https://ktor.io/quickstart/"><img src="/_next/static/media/ktor.c670df18.svg" alt="Ktor Logo"/><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Ktor is a multiplatform toolkit built by JetBrains for creating Web applications in Kotlin. It makes use of coroutines for high scalability and offers an easy-to-use API.</p><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1"><span class="_rs-link_1owszn1_1 _rs-link_mode_standalone_1owszn1_1 _rs-link_external_1owszn1_1 _rs-typography_theme_dark_1owszn1_1">How to start</span></p></a></div><div class="ecosystem_grid__8_0J5 ktl-offset-top-m"><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://guides.micronaut.io/latest/creating-your-first-micronaut-app-maven-kotlin.html"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/micronaut-foundation.e2852254.svg" alt="Micronaut Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Build your next Kotlin microservice application with ease and test it, too.</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://quarkus.io/guides/kotlin"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/quarkus-dark.f51619f7.svg" alt="Quarkus Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Looking to implement the next cloud-native service with Kotlin? Try Quarkus!</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://vaadin.com/kotlin"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/vaadin-dark.61199109.svg" alt="Vaadin Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Create web applications with great-looking UI using Java and Kotlin.</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://docs.koog.ai/"><div class="ecosystem_cardLogo__0SiNl"><div class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Koog</div></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">A Kotlin-based framework designed to build and run AI agents entirely in idiomatic Kotlin.</div><div class="ecosystem_tag__3wooE"><span data-test="tag" class="_main_1g1lw52_31 _sizeXs_1g1lw52_18 _alignIconLeft_1g1lw52_7 _main_1uyx2kg_1" style="color:#FFFFFF;background-color:var(--rs-color-primary-light-theme, #6B57FF)">by JetBrains</span></div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://vertx.io/docs/"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/vertx-dark.853acf04.svg" alt="Vert.x Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">A tool-kit for building reactive applications on the JVM.</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://www.http4k.org/"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/http4k-dark.c9013d9e.svg" alt="HTTP4K Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">The HTTP toolkit written in pure Kotlin. Enables the serving and consuming of HTTP services in a functional and consistent way.</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://kafka.apache.org/"><div class="ecosystem_cardLogo__0SiNl"><img src="/_next/static/media/kafka.9718bb61.svg" alt="Apache Kafka Logo"/></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Build event-driven, scalable applications effortlessly in Kotlin using Apache Kafka, the industry-standard platform for real-time data streaming.</div></a></div><div><a class="ecosystem_ecosystemCard__7rmk_" href="https://github.com/modelcontextprotocol/kotlin-sdk"><div class="ecosystem_cardLogo__0SiNl"><div class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">MCP Kotlin SDK</div></div><div class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">A Kotlin SDK for building MCP clients and servers across JVM, WebAssembly, and iOS, with full support for standard transports and protocol events.</div><div class="ecosystem_tag__3wooE"><span data-test="tag" class="_main_1g1lw52_31 _sizeXs_1g1lw52_18 _alignIconLeft_1g1lw52_7 _main_1uyx2kg_1" style="color:#FFFFFF;background-color:var(--rs-color-primary-light-theme, #6B57FF)">by JetBrains</span></div></a></div></div></div></section><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">How to start â incremental adoption in Java projects</h2><h3 class="_rs-subtitle-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Because of Kotlinâs full interoperability with Java, <br/>teams can introduce it gradually</h3><div class="ktl-row ktl-offset-top-l"><div class="ktl-col "><div><div class="how-to-start_item__l7nHM">
1<svg viewBox="0 0 24 24" class="_icon_i5poj_4 _dark_i5poj_34 _sizeM_i5poj_22 how-to-start_icon__hO8sR"><path d="M15.256 18.866a1.5 1.5 0 0 1-2.122-2.122L16.38 13.5H4a1.5 1.5 0 1 1 0-3h12.378l-3.244-3.244a1.5 1.5 0 1 1 2.121-2.121l5.78 5.78a1.5 1.5 0 0 1 .307 1.755 1.5 1.5 0 0 1-.281.391z"></path></svg><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 how-to-start_title__L1Gqc">Start using Kotlin for your tests.</p></div><div class="how-to-start_item__l7nHM"><svg viewBox="0 0 24 24" class="_icon_i5poj_4 _dark_i5poj_34 _sizeM_i5poj_22 how-to-start_icon__hO8sR"><path d="M15.256 18.866a1.5 1.5 0 0 1-2.122-2.122L16.38 13.5H4a1.5 1.5 0 1 1 0-3h12.378l-3.244-3.244a1.5 1.5 0 1 1 2.121-2.121l5.78 5.78a1.5 1.5 0 0 1 .307 1.755 1.5 1.5 0 0 1-.281.391z"></path></svg><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 how-to-start_title__L1Gqc">Implement new services from scratch in Kotlin using your existing framework (Spring, Quarkus, Jakarta EE, etc.).</p></div><div class="how-to-start_item__l7nHM"><svg viewBox="0 0 24 24" class="_icon_i5poj_4 _dark_i5poj_34 _sizeM_i5poj_22 how-to-start_icon__hO8sR"><path d="M15.256 18.866a1.5 1.5 0 0 1-2.122-2.122L16.38 13.5H4a1.5 1.5 0 1 1 0-3h12.378l-3.244-3.244a1.5 1.5 0 1 1 2.121-2.121l5.78 5.78a1.5 1.5 0 0 1 .307 1.755 1.5 1.5 0 0 1-.281.391z"></path></svg><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 how-to-start_title__L1Gqc">Develop new features in Kotlin within existing Java projects.</p></div><div class="how-to-start_item__l7nHM"><svg viewBox="0 0 24 24" class="_icon_i5poj_4 _dark_i5poj_34 _sizeM_i5poj_22 how-to-start_icon__hO8sR"><path d="M15.256 18.866a1.5 1.5 0 0 1-2.122-2.122L16.38 13.5H4a1.5 1.5 0 1 1 0-3h12.378l-3.244-3.244a1.5 1.5 0 1 1 2.121-2.121l5.78 5.78a1.5 1.5 0 0 1 .307 1.755 1.5 1.5 0 0 1-.281.391z"></path></svg><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 how-to-start_title__L1Gqc">Gradually convert your existing Java codebase to Kotlin.</p></div></div></div><div class="ktl-col how-to-start_codeSample__cahbR"><div class="code-hightlight_codeHighlight__eAyEL how-to-start_codeBlock__2oISV"></div></div></div></div></section><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset" id="tools"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Use your favorite tools</h2><div class="ktl-row ktl-offset-top-l"><div class="ktl-col-12 ktl-col-sm-8"><img alt="IDE support" loading="lazy" width="2794" height="1912" decoding="async" data-nimg="1" class="favorite-tools_image__ufzLo" style="color:transparent" src="/_next/static/media/tools-screen-2.2425d6f6.webp"/></div><div class="ktl-col-12 ktl-col-sm-4"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 favorite-tools_sectionTitle__VM4GO spacer-md">IDE support</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">IntelliJ IDEA is the best environment for Kotlin developers, created by JetBrains â the makers of Kotlin. It makes coding easier with features like smart navigation, refactoring, and code analysis. The built-in AI assistant Junie helps by converting Java to clean Kotlin and generating tests quickly.</p><a data-test="button" data-testid="download-idea-button" type="button" href="https://www.jetbrains.com/idea/download/" class="_main_1dmt5cy_56 _modeOutline_1dmt5cy_42 _sizeL_1dmt5cy_29 _alignIconRight_1dmt5cy_52 _dark_1dmt5cy_9"><svg viewBox="0 0 24 24" class="_icon_i5poj_4 _sizeM_i5poj_22 _icon_1dmt5cy_182"><path d="M19.5 14.21a1.5 1.5 0 1 1-3 0V9.622L7.06 19.06a1.5 1.5 0 0 1-2.12-2.122L14.378 7.5H9.79a1.5 1.5 0 1 1 0-3H18A1.5 1.5 0 0 1 19.5 6z"></path></svg><span class="_content_1dmt5cy_224" data-rs-internal="button__content" data-test="button__content">Download</span></a><div class="favorite-tools_logos__u1wLF"><img src="/_next/static/media/intellij-idea.872ee33b.svg" alt="IntelliJ IDEA logo"/></div></div></div><div class="ktl-row ktl-offset-top-xl"><div class="ktl-col-12 ktl-col-sm-4"><h3 class="_rs-h3_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 favorite-tools_sectionTitle__VM4GO">Build tools</h3><p class="_rs-text-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Use your favorite build tool for building Kotlin programs. Plugins are available for <a class="_rs-link_1owszn1_1 _rs-link_mode_classic_1owszn1_1 _rs-typography_theme_dark_1owszn1_1" href="https://kotlinlang.org/docs/reference/using-gradle.html">Gradle</a>, <a class="_rs-link_1owszn1_1 _rs-link_mode_classic_1owszn1_1 _rs-typography_theme_dark_1owszn1_1" href="https://kotlinlang.org/docs/reference/using-maven.html">Maven</a>, and <a class="_rs-link_1owszn1_1 _rs-link_mode_classic_1owszn1_1 _rs-typography_theme_dark_1owszn1_1" href="https://github.com/bazelbuild/rules_kotlin">Bazel â</a></p><div class="favorite-tools_logos__u1wLF"><img src="/_next/static/media/maven.03e89d9a.svg" alt="Maven logo"/><img src="/_next/static/media/gradle.b8c7ff22.svg" alt="Gradle logo"/><img src="/_next/static/media/bazel.0c7e836c.svg" alt="Bazel logo"/></div></div><div class="ktl-col-12 ktl-col-sm-8 spacer-md"><img alt="Build tools" loading="lazy" width="2794" height="1912" decoding="async" data-nimg="1" class="favorite-tools_image__ufzLo" style="color:transparent" src="/_next/static/media/tools-screen-2.2425d6f6.webp"/></div></div></div></section><section class="ktl-layout ktl-layout--center"><div class="ktl-container section-offset"><h2 class="_rs-h1_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1">Additional materials</h2><h3 class="_rs-subtitle-2_1owszn1_1 _rs-typography_theme_dark_1owszn1_1 _rs-text_hardness_auto_1owszn1_1 additional-materials_subtitle__8O4mS">Build better backends with Kotlin. 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