GitHub saw tremendous growth in 2025 with more than one new developer on average joining GitHub every second - over 36 million in the past year, bring the total for the GitHub community to over 180 million developers. Due to the explosion in the use of AI-assistance, Typescript is now the most used language on GitHub.

GitHub held its annual developer conference, GitHub Universe, at the end of October. It was a hybrid event, offering both in-person attendance at the Fort Mason Center in San Francisco, California and Virtual passes which provided free access to live-streamed keynotes and on-demand sessions. The event focused heavily on the potential of AI-powered development and findings of the State of the Octoverse 2025 report also looked at the impact of AI on GitHub, noting that the release of GitHub Copilot Free in late 2024 coincided with a step-change in developer sign-ups.

Commenting on how AI has boosted GitHub's numbers the Octoverse Report states:

Three years ago, we said AI wouldn’t replace developers—it would bring more people into the ecosystem. The data now proves it: activity on GitHub has reached record levels, with more contributors, more repositories, and more experimentation than ever.

AI has also had an impact on productivity:

Developers created more than 230 new repositories every minute, merged 43.2 million pull requests on average each month (+23% YoY), and pushed nearly 1 billion commits in 2025 (+25.1% YoY)—including a record of nearly 100 million in August alone. 

The finding that 80% of new GitHub users started using Copilot within their first week on the platform indicates that AI is now considered a fundamental tool rather than an advanced feature.

Crucially, generative AI and agentic workflows have moved from  experimental to mainstream. There was a 178% YoY increase in projects that imported an LLM SDK such that 1.13M+ public repositories now depend on generative-AI SDKs:

Another standout finding is about the languages used on GitHub. Due to a 66% YoY increase in contributors using TypeScript, it became the most used language, surpassing Python, now in 2nd place and JavaScript, now in 3rd place. This too is interpreted as being related to AI:

As AI code generation becomes the default way to write code, developers and teams naturally gravitate towards languages that offer better determinism and less ambiguity. TypeScript, by defining clear data shapes and contracts, gives the AI the structure it needs to write higher-quality code, making it the preferred language for the AI-native developer.

The explanation for TypeScript's superiority for AI-assisted development is that, given LLMs are prone to generating code that is logically sound but contains subtle type errors,  TypeScript's static type checking acts as a reliable guardrail, catching these LLM-generated compilation errors before the code is deployed to production. 

More Information

Octoverse 2025 Report

GitHub Octoverse Reveals The State Of Open Source

The Ever Expanding GitHub Octoverse 

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