ROOT Converter

Convert ROOT files online for free

Select File
Drop or upload your .ROOT file

How to convert your ROOT file

Click Select File above, and choose your ROOT file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.

Convert ROOT to another file type

The converter easily converts your ROOT file to various formats—free and online. No Windows or extra software needed.

ROOT to POWER

Convert a file to ROOT

The converter also works in reverse, allowing you to convert your file into the ROOT file type—in the best quality.

About ROOT files

ROOT files, typically with the .root extension, are a specialized format used predominantly in the field of high-energy physics for storing large amounts of scientific data. Developed by CERN, the ROOT framework is powerful for data analysis but can be complex and cumbersome for everyday use. For more information, visit the Wikipedia page on ROOT.

Converting ROOT files can be challenging due to their unique structure and the need to preserve data integrity. ROOT files can be converted to formats like CSV, JSON, XML, and HDF5, which are more accessible and widely used. However, the conversion process may require specialized software like the ROOT Data Analysis Framework itself or scripting in Python using libraries such as PyROOT or Pandas.

Key considerations include ensuring that all metadata and hierarchical structures are maintained during conversion. This can be difficult, as not all formats support the same level of complexity. Additionally, large file sizes can be problematic and may require significant computational resources.

Despite its advantages for specific scientific applications, the complexity of ROOT files represents a significant drawback for general use. Therefore, for a more convenient solution, we recommend using the Convert.Guru website. Simply drag-n-drop your ROOT files onto their platform to easily convert them to various formats without the hassle of dealing with complex software.

The ROOT Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best ROOT converter by continuously improving quality, usability, and reliability.