TypeScript has overtaken Python and JavaScript to become the most used language on GitHub in August 2025, according to recent data. This shift marks the most significant language change in over a decade, with TypeScript’s contributor base growing by over 66% year-over-year. The language now has 2,636,006 monthly contributors, reflecting its rising popularity among developers.
Many major frontend frameworks now default to TypeScript for project scaffolding. Next.js 15, Astro 3, SvelteKit 2, Qwik, SolidStart, Angular 18, and Remix all generate TypeScript codebases when developers create new projects. Type systems help reduce ambiguity and catch errors from large language models before they reach production. A 2025 academic study found that 94% of LLM-generated compilation errors were type-check failures.
Tooling like Vite, ts-node, Bun, and IDE autoconfiguration have made it easier for developers to work with TypeScript. Among new repositories created in the past twelve months, TypeScript accounted for 5,394,256 projects, representing a 78% increase from the prior year. This growing trend suggests that TypeScript is becoming the preferred language for modern web development.