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Major Companies Are Switching to TypeScript: The Main Trend of 2025
2025 has been a turning point for the web development ecosystem. More and more corporations — from startups to tech giants — are announcing a full or partial transition to TypeScript. The language created by Microsoft, which just a few years ago was considered an "add-on to JavaScript," is now becoming the de facto standard for enterprise projects.
We analyzed several high-profile cases and identified the key reasons for this trend.
Who is switching and why?
In the first half of 2025, several well-known companies published technical blogs about migration:
- Google — is converting some of its internal Angular and Firebase tools to TypeScript to improve code reliability.
- Airbnb — completed the migration of its frontend from vanilla JavaScript to TypeScript, reducing the number of bugs in production by 38%.
- Meta — announced that all new features in React Native are written exclusively in TypeScript.
- Stripe — migrated its SDKs and internal API clients, stating that static typing sped up code reviews by 25%.
Why now?
Several factors converged in 2025:
- Tool maturity. TypeScript 5.8 brought significant improvements to compiler performance and support for new patterns.
- Growing project complexity. In the era of microservices and SSR frameworks (Next.js, Nuxt), refactoring code without types becomes risky.
- The job market. Developers who know TypeScript receive, on average, 15-20% higher offers than pure JS specialists.
- AI assistant support. Modern LLMs (like GPT-5 and Copilot) generate more accurate code when using TypeScript — thanks to explicit types and contracts.
What does this mean for developers?
The 2025 trend is not just a fad. TypeScript is ceasing to be a choice for individual enthusiasts and is becoming a mandatory requirement for Middle/Senior developer positions. If you are still writing in vanilla JavaScript — now is the time to master strict typing.
On our website pythonlib.ru, we regularly publish guides on TypeScript. We recommend starting with learning basic types, generics, and utility types — these are the fundamentals needed in any corporate codebase.
Forecast for the second half of 2025
Analysts expect that by the end of the year, more than 70% of new commercial projects will start with TypeScript. This means that the demand for specialists who know how to work with types will only grow. Companies that have not yet made the switch risk falling behind in code quality and development speed.
Conclusion: TypeScript is not just "another language," but a strategic tool for building reliable and scalable software. And 2025 has definitively proven this.
