The State of Kotlin in 2026 Report - The JetBrains Blog

Kotlin’s 2026 state report marks the language’s fifteenth anniversary by examining its maturity, global adoption, and prospects across mobile, backend, multiplatform, and AI-related development. Although Kotlin remains strongly associated with Android, more than half of its developers now work on backend projects, reflecting its expansion into a broader range of applications. The report combines JetBrains survey findings, independent industry data, and adoption evidence, highlighting that 93% of surveyed Kotlin developers use AI coding tools and 81% use or are considering AI coding agents. Most respondents also report that AI-generated Kotlin code is either correct or needs only minor revisions, while Kotlin’s static typing, null safety, and coroutines are presented as relevant strengths for AI-assisted software development.

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