KotlinConf

2025Copenhagen, Denmark
May 21–23

Regular admission tickets are now available!

100+
speakers

70+
sessions

7
workshops

2500
attendees

Workshops

Build your skills with in-depth, practical workshops on key areas of Kotlin development.

  • 8 hours of hands-on work
  • Expert hosts from JetBrains or certified Kotlin trainers
  • Personalized feedback from the hosts
  • Preparation materials
  • Certificate of attendance
  • Asynchronous Programming With Kotlin Coroutines

    Intermediate
  • Deep Dive Into Kotlin Multiplatform: Advanced Techniques for Seamless Code Sharing

    IntermediateAdvanced
  • Hands-On Kotlin Web Development With Ktor

    Introductory and overviewIntermediate
  • Building Shared UI With Compose Multiplatform

    IntermediateAdvanced
  • Refactoring to Functional Kotlin

    Advanced
  • Spring Boot With Coroutines and Virtual Threads

    Intermediate
  • Extracting, Transforming, and Analyzing Data With Kotlin

    Intermediate

Asynchronous Programming With Kotlin Coroutines

Intermediate

Learn to be productive with Kotlin coroutines and Flows. This workshop covers async programming basics, coroutine contexts, structured concurrency, and Kotlin Flows, helping you enhance your skills for building modern, concurrent applications.

Sebastian AignerVsevolod Tolstopyatov

Sebastian Aigner, Vsevolod Tolstopyatov, JetBrains

Deep Dive Into Kotlin Multiplatform: Advanced Techniques for Seamless Code Sharing

IntermediateAdvanced

This is an intermediate/advanced workshop for experienced Kotlin Multiplatform developers. It covers topics such as native integrations, advanced Kotlin Multiplatform for iOS, code quality, app quality, and managing workflows.

Pamela HillKonstantin Tskhovrebov

Pamela Hill, Konstantin Tskhovrebov, JetBrains

Hands-On Kotlin Web Development With Ktor

Introductory and overviewIntermediate

This workshop covers Ktor, a flexible framework for HTTP apps with Kotlin. Learn to handle requests, WebSockets, databases, and authentication. We’ll also cover testing, deployment, RESTful services, and app structuring with hands-on coding throughout.

Anton ArhipovLeonid Stashevskii

Anton Arhipov, Leonid Stashevskii, JetBrains

Building Shared UI With Compose Multiplatform

IntermediateAdvanced

Learn how to build shared UI in Kotlin with Compose Multiplatform! In this workshop, we’ll see how Compose works across platforms, get hands-on with the latest APIs and best practices, and cover advanced topics like interop, accessibility, and testing.

Márton BraunVictor Kropp

Márton Braun, Victor Kropp, JetBrains

Refactoring to Functional Kotlin

Advanced

Kotlin supports both Object-oriented and functional programming, but what can we do with OO code that should be functional? Refactor, of course! This workshop takes a web application and migrates the code to an FP style better suited to today’s architectures.

Duncan McGregorNat Pryce

Duncan McGregor, Consulting Developer, Nat Pryce, Consulting Developer

Spring Boot With Coroutines and Virtual Threads

Intermediate

Unlock the full potential of Spring Boot with Coroutines and VirtualThreads! In this workshop, you’ll master Kotlin’s Coroutines to build non-blocking, high-performing APIs in Spring Boot with refined techniques like structured concurrency, streaming and more.

Urs Peter

Urs Peter, Xebia

Extracting, Transforming, and Analyzing Data With Kotlin

Intermediate

Learn how to build data processing pipelines, extract, aggregate, transform, and present data effectively. You’ll discover how to export data as classes, display it as tables, or visualize it through charts using tools within the Kotlin ecosystem.

Aleksei ZinovevJolan Rensen

Aleksei Zinovev, Jolan Rensen, JetBrains

Workshops

Build your skills with in-depth, practical workshops on key areas of Kotlin development.

  • 8 hours of hands-on work
  • Expert hosts from JetBrains or certified Kotlin trainers
  • Personalized feedback from the hosts
  • Preparation materials
  • Certificate of attendance

Agenda Preview

Get a sneak peek of what to expect at KotlinConf’25.
The full schedule will be published closer to the event.

May 21

Workshops day

7:30

Doors open

Grab your badge and favorite beverage, and get ready for your workshop! Breakfast will be provided.

TicketWorkshop passCoffee

9:00 - 17:00

Workshop

Dive into the full-day hands-on session of your choice with leading Kotlin experts.

Lunch and coffee breaks are included!

LunchCoffeeHealthy snacks

May 22

Conference day 1

7:30

Doors open

Pick up your badge and get ready for the keynote.

TicketConference passCoffee

9:00 – 10:00

Keynote by JetBrains

Be the first to hear Kotlin news from the developers of the language and ecosystem.

10:00 – 18:00

Sessions

Attend KotlinConf sessions, code labs, and partner events.

Lunch and coffee breaks are included!

LunchCoffeeHealthy snacks

18:00 – 22:00

KotlinConf Party

Enjoy food, an open bar, music, and of course meeting people at the KotlinConf Party!

PartyLive musicDrinksLunch

May 23

Conference day 2

8:00

Doors open

Grab a beverage, and gear up for the second day!

TicketConference passCoffee

9:00 – 10:00

The second-day keynote

Get inspired first thing in the morning during this insightful talk from a star of the industry!

10:00 – 17:15

Sessions

Participate in more great KotlinConf sessions, code labs, and events!

Lunch and coffee breaks are included.

LunchCoffeeHealthy snacks

17:15 – 18:00

Closing event

Our previous partners

GoogleMontaGradleKotzillaSentryTouchLabUberKodeinKodersMercariWorldLineBTSystemsAmerican ExpressAndroidPretixStickermuleKotlin WeeklyKt. AcademyShapeKotlin Foundation

See what last year was like

Keep up to date on @kotlinconf

Join us for the Kotlin event of the year!

Conference
May 22–23

Regular admission

€560.00

incl. VAT €700.00

Conference pass for days 1 and 2

  • 2 days of sessions, code labs, and unlimited networking on May 22–23
  • Food – lunch on both days and a dinner at the party on May 22
  • Refreshments – unlimited coffee, tea, and healthy snacks throughout both days
  • KotlinConf Party with a live band and open bar
  • Exclusive goodies – T-shirts and other surprises

Doesn’t include a workshop pass.

Workshops
May 21

€715.00

incl. VAT €893.75

Workshop pass

  • One workshop from 9:00 to 17:00 on May 21
  • Breakfast, lunch, and an afternoon coffee break
  • Hot drinks and refreshments throughout the day

Doesn’t include a conference pass.

Partnership

Elevate your brand’s presence, engage with industry leaders, acquire top talent, and drive your business forward by partnering with us at KotlinConf 2025.

FAQ

Students and teachers are eligible for a 50% discount on General Admission tickets. This discount cannot be applied to Super Early Bird and Early Bird tickets. To apply, please send a copy of your academic ID card or other identifying material to info@kotlinconf.com. You’ll need to be enrolled as a member of your academic institution in May 2025 to receive the discount. Please note that only official institutions qualify.
Tickets are non-refundable, except in the event that your visa is denied or the event is canceled.
You can, however, transfer your ticket to another person by changing the attendee’s name.
Please check the Venue page for information about accommodation offerings.
If you have a voucher, enter it in the Redeem a voucher field before clicking the Buy button. Make sure you redeem your voucher before proceeding as we cannot refund orders that have been inadvertently placed without first attaching a voucher.
We can provide you with a letter of invitation for your visa application. If you need one, please send your full details along with the receipt of your KotlinConf ticket purchase to info@kotlinconf.com.