JetBrains
We make you a better (professional) software developer.
JetBrains creates intelligent software development tools consistently used and trusted by 11.4 million professionals and 88 Fortune Global Top 100 companies. Our lineup of more than 30 products includes IDEs for most programming languages and technologies, such as IntelliJ IDEA, PyCharm, and others, as well as products for team collaboration, like YouTrack and TeamCity. JetBrains is also known for creating the Kotlin programming language, a cross-platform language used by more than 5 million developers worldwide yearly and recommended by Google as the preferred language for Android development.
Learn more about us and our products at www.jetbrains.com/
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JetBrains
Be honest.
What diagnosis would the Developer ER give to YOUR code right now?
4 hours ago | [YT] | 1
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JetBrains
Adopting Kotlin Multiplatform was a calculated bet for Booking.com’s experimentation library – and the results exceeded expectations.
Discover how KMP helped improve cross-platform consistency and proved to be a viable long-term solution for their team.
Read the full story
kotl.in/6821oj
4 days ago | [YT] | 128
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JetBrains
🎉 Kotlin is turning 15 – and now is a great time to start learning.
To celebrate, we’re offering free access to select Kotlin courses on Hyperskill, so you can build your Kotlin knowledge with hands-on, project-based learning.
Start with the basics, build real projects, and continue on to professional Kotlin tracks.
Explore the Kotlin courses 👇
kotl.in/y2qhc7
5 days ago | [YT] | 151
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JetBrains
🎉 Kotlin turns 15 this year! 🎉
To mark this special occasion, we've brought the Kotlin Effect into real life – making everyday situations more concise, efficient, and fun.
Join us in celebrating 15 years of Kotlin and its impact on developers, teams, and the community!
Explore the Kotlin Effect further: kotl.in/0vxovr
1 week ago | [YT] | 34
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JetBrains
🎮 Kodee vs. Friction is here!
To celebrate 15 years of Kotlin, we’re launching a browser arcade game built with Kotlin and Compose Multiplatform for web. For the best experience, we recommend playing on a desktop or laptop.
Fight bugs and unlock Kotlin power-ups inspired by null safety, the Elvis operator, coroutines, smart casts, Kotlin Multiplatform, and more.
Face enemies like Legacy Slime, Boilerplate Golem, Callback Hydra, and the Final Void.
Want to see how the game was built? The source code is now public: github.com/JetBrains/kotlin-15-game
Play the game, survive the chaos, and climb the leaderboard 👇
kotl.in/z489y8
1 week ago (edited) | [YT] | 90
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JetBrains
Warning: The audio in this Shorts contains high levels of... well, you better watch it to understand.
1 week ago | [YT] | 3
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JetBrains
Scala influenced modern Java more than most developers realize. In the latest Marco Show episode, Martin Odersky, creator of Scala and one of the architects behind Java generics, talks about functional programming on the JVM, AI-generated code, and the future of Java development.
Watch the episode: https://youtu.be/Xn_YpUtXWT4
2 weeks ago | [YT] | 171
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JetBrains
Mellum started as a code completion model.
Mellum2 goes much further.
Now open source on Hugging Face, Mellum2 is a 12B-parameter LLM built for:
• Routing and orchestration
• RAG pipelines
• Sub-agents
• Natural language and coding tasks
Powered by a new mixture-of-experts (MoE) architecture and optimized for ultra-low-latency inference.
Available now under Apache 2.0.
Learn more: jb.gg/ff3h8i
3 weeks ago | [YT] | 419
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JetBrains
Koog 1.0 is here! We’ve moved JetBrains’ AI agent framework for Kotlin and Java to a stable core API, ready for production backends.
What’s new in 1.0:
• One-year stability guarantee: No breaking changes to the stable core for at least a year.
• Local AI: Local LiteRT execution on Android devices.
• Better Java interop: A completely redesigned, cleaner API.
• Bring your own HTTP: A newly decoupled transport layer.
• OpenTelemetry for KMP: Deep observability across KMP targets.
• Prompt caching: Anthropic support to reduce latency and token costs.
Learn more: jb.gg/k4lwtj
3 weeks ago | [YT] | 134
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JetBrains
Everyone in tech is racing to add more AI, ship faster, and grow bigger.
Andrew Kelley is doing the exact opposite, and it's working.
Today, we're joined by Andrew Kelley, the creator of Zig. Andrew has spent over a decade building a language used by Ghostty, TigerBeetle, and Uber. He runs it as a nonprofit, funded by donations, with no investors.
What surprised us most is how far he'll go to protect that independence. His project has a total ban on AI. He moved the entire project off GitHub. And after ten years, he still refuses to release version 1.0
We spoke about:
◼️ Why build a new language when C, Rust, and Go already exist?!
◼️ Why ban AI in 2026, when everyone else is racing to use it?
◼️ Why no 1.0 after a decade and why that's on purpose?
◼️ Would he really turn down $100 million for the project?
◼️ What actually makes Zig better than C?
One thing Andrew said that really stayed with us: the best software isn't built by companies chasing profit, but by people who simply love what they're making.
Whether you agree with his choices or not, this conversation will make you think differently about how software gets built.
Watch the full conversation: jb.gg/andrew-kelley-zig-interview
3 weeks ago (edited) | [YT] | 755
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