Why TypeScript Overtook Python on GitHub – AI’s Impact and New Front‑End Trends

According to GitHub’s Octoverse 2025 report, TypeScript has become the most popular language on the platform, surpassing Python for the first time.

The report highlights a rapid increase of over 1 million new TypeScript developers in the past year, a 66 % year‑over‑year growth, bringing active users to about 2.63 million—approximately 42 000 more than Python.

Python remains dominant in AI and data‑science, adding 850 000 developers (48 % growth), while JavaScript grew by 25 % with 427 000 new users.

GitHub attributes TypeScript’s surge to the widespread adoption of AI‑assisted coding tools, which favor statically‑typed languages for better code generation and error detection.

Many modern front‑end frameworks now default to TypeScript, including:

Next.js 15 – preferred framework for modern web applications

SvelteKit 2 – focused on performance and developer experience

Qwik and Astro 3 – emerging component‑centric optimization solutions

These choices make TypeScript the “new normal” in the developer ecosystem.

Python still holds a strong position in AI and data‑science, with over 582 000 AI‑related Python projects (a 50 % increase) and a 18 % rise in Jupyter Notebook usage.

Hybrid stacks combining Python and TypeScript are becoming common, using TypeScript for front‑end and service layers while retaining Python for core algorithms and data analysis.

Traditional languages such as Java and C# continue steady growth, adding over 10 000 contributors each (20 % and 22 % growth respectively), underscoring their relevance in backend, cloud, and game development.

Emerging languages like Luau (194 % growth), Typst (108 % growth), and Astro/Blade are gaining traction, reflecting developers’ desire for faster, safer, and more component‑based development.

India has become the world’s largest open‑source contributor group, surpassing the United States in total contributions, with over 5.2 million new developers projected for 2025.

Overall, the 2025 Octoverse data shows AI reshaping developer language preferences, with TypeScript’s rise symbolizing the fusion of strong typing and intelligent programming, while Python’s steady presence confirms the enduring importance of data and algorithms.