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Enables processing and scientific analysis of large amounts of data: today, more than 2 exabytes are stored in ROOT files. The Higgs was discovered with ROOT!

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Open source, which means that you can use it freely and modify it. It adopts an open development process, inviting its users to contribute to it.

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Delivered with a C++ interpreter, ideal for fast prototyping. ROOT also offers a Python interface to all its components with dynamic bindings. Jupyter notebooks are supported too.

ROOT and the C++ Documentary: the trailer! (15 May 2026)

In 1979, Bjarne Stroustrup arrived at Bell Labs. What started as a small personal experiment became one of the world’s most used, most controversial, and most powerful languages.

ROOT Advanced Course 2026 (20 Apr 2026)

We’ve heard you - at least some of you - and we organized the first edition of the ROOT Advanced Course!

🚀 3rd ROOT Hackathon: The Fixathon 2.0 (25 Mar 2026)

📅 11-12 May 2026 | 📍 CERN, IdeaSquare

Recent Common Vulnerabilities: does ROOT need to be updated? (11 Feb 2026)

Let’s start with ROOT’s official statement - below you can find more explanations.

ROOT Users Workshop 2025: a Success 🚀! (24 Nov 2025)

What a week! Last week the 13th ROOT Users Workshop took place in Valencia, Spain, at the Universitat Politècnica de València (UPV).

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