Sensation of the Year: Swift Overtakes Python and JavaScript in Growth Rates in 2025

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GitHub named Swift the fastest growing language of the year

The GitHub platform published its annual Octoverse report for 2025. The main surprise is that the Swift programming language, created by Apple for iOS and macOS, has been recognized as the fastest growing. Over the past 12 months, the number of repositories in Swift increased by 47%, outpacing Python (+32%) and JavaScript (+28%).

Experts attribute the explosive growth to several factors. First, Apple is actively promoting Swift in the areas of server-side development and machine learning. Second, the release of Swift 6.0 at the end of 2024 brought support for full-fledged asynchronous programming and improved compatibility with C++. This attracted developers of high-load systems.

"Swift has ceased to be just a language for mobile applications. Now it is a universal tool that allows you to write code for iOS, macOS, servers, and even embedded systems," comments Chris Lattner, creator of the language and Director of Engineering at Apple.

GitHub statistics confirm: the number of open-source projects in Swift has grown to 2.3 million. Growth is especially noticeable in the DevOps (+55%) and Data Science (+40%) categories. At the same time, Swift has maintained its position in mobile development — 78% of new applications for iOS in 2025 are written in it.

Interestingly, Swift has overtaken Rust in the ranking of system languages. While Rust is popular among security enthusiasts, Swift is chosen for its development speed and code readability. The average time to create an MVP in Swift has decreased by 30% compared to Objective-C.

However, experts warn: the rapid growth may be due to a low base effect. Swift's share of the total code volume on GitHub is still only 4.2% compared to 28% for JavaScript. "Swift is a promising niche, but not mainstream. Python remains the king of Data Science, and JavaScript remains the king of the web," notes Stack Overflow analyst Sarah Jenkins.

Nevertheless, for developers looking for new opportunities, Swift in 2025 is a chance to enter a growing market. Apple plans to expand the ecosystem, which means the demand for Swift engineers will only increase.