A conference about everything @Kotlin. Brought to you by @JetBrains. KotlinConf 2027 will take place in Kraków, Poland on April 21–23, 2027.
Joined February 2017
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Kotlin Multiplatform Contest participants have built all kinds of creative projects:
🧑🌾 AI assistant for farmers.
🛟 Flood rescue device.
🎹 Synthesizer that lets you hear mathematical equations.
🤖 Robot control app.
🏓 Game that turns your phone into a ping-pong racket.
What will you build? Join the contest! 🚀
kotlinconf.com/contest/
Your Kotlin story has a destination: Kraków 📍
There are only three weeks left to submit your talk proposal for KotlinConf 2027: kotl.in/gnmin6
Let’s rewind to KotlinConf 2019! 🕰️
Can you guess which talk has been watched the most?
A. Gradient Descent: The Ultimate Optimizer
B. Asynchronous Data Streams with Kotlin Flow
C. Coroutines! Gotta catch ’em all!
D. The Power of Types
12%A
38%B
50%C
0%D
8 votes • 1 daysWhich real-world Kotlin topic would you most like a speaker to unpack at KotlinConf? KMP in large codebases
Something else, or want Kotlin + AI on the list? Tell us in the replies 👇
47%KMP in large codebases
3%Structuring coroutines
27%Evolving server-side apps
23%Architecting Compose apps
30 votes • 18 hoursWant to be part of what makes KotlinConf happen?
The volunteer call for KotlinConf 2027 is open! Join the team in Kraków and help create a great experience for the Kotlin community.
Apply now: kotl.in/8b9tdz
Which of these topics would you most like to see covered at KotlinConf?
43%Kotlin Multiplatform
25%AI + Kotlin
23%Language and tooling
9%Other - tell us below
44 votes • Final resultsStill ignoring deprecation warnings?
This one comes with a deadline. KotlinConf ticket prices go up on December 10, so book now and get yours at the current price: kotl.in/derp94
Want to see KotlinConf 2027 from the inside? Join the volunteer team for a backstage pass (well, a volunteer badge). Meet fellow Kotlin fans, catch great talks, and help bring the conference to life.
The call for volunteers is open! Apply here: kotl.in/8b9tdz
ALT A group of people stand together at a registration booth for KotlinConf 2027. Above them is signage that reads, "Call for Volunteers - Applications Are Open," accompanied by the KotlinConf logo. The booth has sections for "Speaker and partner registration" and "General registration and information.
Thinking about speaking at KotlinConf 2027?
You don’t need years of experience or a groundbreaking idea. Get practical advice on shaping your story, writing a clear proposal, and showing reviewers what makes it worth sharing.
Learn more: kotl.in/n69hda
Oh no, Kodee doesn't yet have a ticket to KotlinConf! Kodee is going to do something about it – and you might want to, too, because KotlinConf ticket prices increase in three days.
Secure your spot and join us in Kraków, Poland, April 21–23, 2027: kotl.in/vl4a8n
ALT A purple plush toy with a large, smiling face and a screen-like chest sits in front of two computer screens displaying a webpage with the title "KotlinConf 2027" and a registration form. A terminal window overlay shows a command with a warning message about a ticket not being found.
Sony’s KMP Journey: Scaling BLE & Hardware with Kotlin Multiplatform by Sergio Carrilho
Watch the KotlinConf’26 talk: 2026.kotlinconf.com/talks/10…
What started as a nine-month initiative became an app installed on millions of devices.
Sergio Carrilho shares Sony’s six-year KMP journey, spanning BLE, background execution, and the move from React Native to Compose Multiplatform.
Go behind the scenes:
kotl.in/7h8vsr
This is one more error you can fix before it even happens: KotlinConf 2027 ticket prices are increasing soon!
Get yours now and join us in Kraków, Poland, April 21–23: kotl.in/l9sjpr
Concurrency Patterns for Modern High Performance Kotlin Servers by Bowen Feng
Watch the KotlinConf'26 talk: kotl.in/aj1lkf
High-performance servers need more than individual async APIs.
Bowen Feng shows how Kotlin coroutines, flows, channels, and structured concurrency come together as reusable patterns for real backend workloads.
Watch the #KotlinConf talk 👇
kotl.in/aj1lkf
"All platforms are unique but some platforms are more unique than others" by Konstantin Tskhovrebov
Watch the full KotlinConf'26 talk: youtube.com/watch?v=wsLoCsZM…
One web target? Try six – or more.
At KotlinConf’26, Konstantin Tskhovrebov explored the unique challenges of bringing Compose Multiplatform to the web and how JetBrains overcomes them.
Watch the talk:
kotl.in/uhuuhe
KotlinConf retweeted
One web target? Try six – or more.
At KotlinConf’26, Konstantin Tskhovrebov explored the unique challenges of bringing Compose Multiplatform to the web and how JetBrains overcomes them.
Watch the talk:
kotl.in/uhuuhe
KotlinConf retweeted
High-performance servers need more than individual async APIs.
Bowen Feng shows how Kotlin coroutines, flows, channels, and structured concurrency come together as reusable patterns for real backend workloads.
Watch the #KotlinConf talk 👇
kotl.in/aj1lkf
Your Kotlin story could take the stage in Kraków! 🎤
The KotlinConf 2027 Call for Papers is now open. Submit your talk and share your ideas, experience, and expertise with the Kotlin community.
Apply now: kotl.in/gnmin6
KotlinConf retweeted
Spring developers, this KotlinConf talk is for you!
In “Bootiful Kotlin”, Josh Long shows how Kotlin fits naturally into Spring Boot – from data access and security to templates, observability, and Spring AI.
Watch it here 👇
youtube.com/watch?utm_source…
🔥 The Kotlin community is already planning the next reunion!
📍 Kraków, Poland
📅 April 21-23
KotlinConf 2027 Super Early Bird tickets are now on sale – it’s the lowest price for the biggest Kotlin event of the year.
🎟️ Get yours today!
kotl.in/conf27-seb-x
