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# TypeScript Overtakes JavaScript as Most-Used Language on GitHub
- URL: https://www.theleftshift.com/typescript-overtakes-javascript-as-most-used-language-on-github/
- Published: 2025-10-29T06:10:48.000Z
- Updated: 2025-10-29T06:10:48.000Z
- Description: Most major front-end frameworks now default to TypeScript, marking its firm establishment across the developer ecosystem.
- Author: The Left Shift Bureau
- Tags: Developer's Corner, Reports

TypeScript, Microsoft’s typed variant of JavaScript, has officially become the most-used programming language on GitHub for the first time, according to the platform’s *Octoverse 2025* [report](https://github.blog/news-insights/octoverse/octoverse-a-new-developer-joins-github-every-second-as-ai-leads-typescript-to-1/?ref=theleftshift.com) released on October 28.

As of August 2025, TypeScript surpassed both JavaScript and Python in usage. GitHub said the trend reflects a broader shift toward typed languages that make AI-assisted and agent-driven coding more reliable in production environments. 

Most major front-end frameworks now default to TypeScript, marking its firm establishment across the developer ecosystem.

*"Even still, Python remains dominant for AI and data science workloads, while the JavaScript/TypeScript ecosystem still accounts for more overall activity than Python alone," GitHub said.*

The report also highlighted how generative AI is transforming the way developers code: over 1.1 million public repositories now use large language model SDKs, with nearly 700,000 of them created in the past year.

Developers merged a record 518.7 million pull requests in the 2025 period—a 29% annual increase—while 80% of new users used GitHub Copilot within their first week.

GitHub said AI is now influencing not just how developers code but also *what* they choose to code with. “Agents are here,” the report stated, “and we expect far greater activity in the months and years ahead.”

The report further revealed that [India has officially overtaken the United States to become the world’s largest base of open-source](https://www.theleftshift.com/india-overtakes-u-s-to-become-worlds-largest-contributers-to-open-source/) contributors, marking a major milestone in the country’s rise as a global coding powerhouse.