Key Questions Answered
What are the current sizes of the leading programming language communities?
Which languages are growing the fastest, and how do they rank relative to each other?
How do language choices and preferences shift with more experience?
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Methodology
The 30th edition of the Developer Nation survey reached more than 12,000 respondents from 128 countries around the world. This research report series delves into key developer trends for Q3 2025 and beyond.
About this Report
Programming languages sit at the heart of the software development ecosystem, shaping not only the kinds of projects developers work on but also the communities they become part of. For product executives, understanding language adoption is more than an academic exercise as it directly informs decisions about which SDKs, APIs, and platform features to prioritise. Choosing the right languages to support can expand the reach of your platform, lower barriers for developers, and ultimately drive product adoption.
Assessing how widely used a programming language is and estimating the size of each language community in absolute terms remains a challenge. The estimates presented here are based on two key data sources. First is our independent estimate of the global number of software developers, which we have been publishing for more than eight years. Second is our large-scale surveys, which reach tens of thousands of developers every six months.