Original TIOBE article: https://www.tiobe.com/tiobe-index/
TIOBE Index for January 2026 summary:
Language of the Year 2025: C#.
C# earns this title for the second time in three years, with the largest annual gain in rankings; it follows new trends, has completed its cross-platform, open-source transformation, and its competition with Java in commercial software remains undecided.2025 ranking changes:
- C and C++ swapped positions in the top 10; C maintains its advantage by targeting the embedded market, while C++'s new features (e.g., modules) have not been widely adopted.
- Perl climbed from 32nd to 11th (back in the top 20); R re-entered the top 10 driven by data science growth.
- Go dropped out of the top 10; Ruby dropped out of the top 20; a short-term return is unlikely.
2026 predictions: TypeScript is expected to enter the top 20; Zig may enter the top 30.
Annual gains:
Historical rankings of languages:
Overview of Languages of the Year:
Original TIOBE article: https://www.tiobe.com/tiobe-index/