Kotlin Gains Popularity Among Developers, Survey Shows

The 2025 State of Developer Ecosystem survey by JetBrains reveals migration patterns among developers, highlighting that Kotlin stands out as a preferred language for its superior development experience and modern features. While project requirements remain the primary driver for language switching, Java developers increasingly move to Python and TypeScript, and C experiences a high churn rate. HTML/CSS developers adopt JavaScript to enhance job prospects, while JavaScript developers diversify into other languages. Migration routes vary widely, with Python-Java and Java-Kotlin being the most common. The survey underscores the importance of understanding individual developer motivations, offering insights into trends shaping the programming landscape.