Free
Free
ROOT is open source and free to download under the project license.
- Access
- ROOT is open source and free to download under the project license.
ROOT
● Identity checkedCode · Vendor site 2026-10-04
ROOT is CERN’s open-source data analysis framework for high-energy physics and large-scale scientific computing, processing petabyte-scale datasets with C++ and Python interfaces. It ships interpreters, I/O libraries, statistical tools, and Jupyter notebook support for reproducible analysis.
- Category
- Code
- Free access
- ROOT is open source and free to download under the project license.
- API access
- Python and C++ APIs are documented for analysis workflows; no commercial SaaS tier is sold on root.cern.ch.
Is ROOT right for you?
A good fit for
Physicists and data scientists analyzing massive experimental datasets who need ROOT’s specialized I/O and math stack.
Before you choose
The project distributes free software only; hosted ROOT subscriptions are not offered on the official site.
Scientific data framework
ROOT combines fast I/O, statistics, and scripting for large physics and scientific datasets in an open, community-driven codebase.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Scale | Homepage states ROOT enables analysis of petabyte-scale data stored in ROOT files. | Facts sourced | 2026-10-04 |
| Languages | Site highlights C++ core libraries with Python bindings and Jupyter notebook support. | Facts sourced | 2026-10-04 |
Understand the total cost
ROOT pricing & plans
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Explore toolThe practical questions
Frequently asked questions
What is ROOT used for?
ROOT is CERN’s open-source data analysis framework for high-energy physics and large-scale scientific computing, processing petabyte-scale datasets with C++ and Python interfaces. It ships interpreters, I/O libraries, statistical tools, and Jupyter notebook support for reproducible analysis.
Does ROOT have a free plan?
ROOT is open source and free to download under the project license.. This record lists ongoing free access; check the plan limits before starting.
How much does ROOT cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use ROOT through an API?
Python and C++ APIs are documented for analysis workflows; no commercial SaaS tier is sold on root.cern.ch.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
The project distributes free software only; hosted ROOT subscriptions are not offered on the official site.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.