Resources

The CWTS Leiden Ranking Open Edition is fully transparent. We do not only make the results of the ranking openly available, but also the underlying data. The source code of the software used to create the ranking is openly available as well.

The results of the Leiden Ranking Open Edition are available in a spreadsheet file. For each combination of a university, a main field, and a time period, the file provides the values of all indicators. The results are made available under a CC0 public domain dedication.

Download results (2025).

Download results (2024).

Download results (2023).

The data underlying the Leiden Ranking Open Edition is available in a set of text files. These files contain (1) data about the universities included in the ranking and the links between these universities and their affiliated organizations, (2) data about the publications included in the ranking and the links between these publications and universities and main fields, (3) indicators at the level of publications, and (4) indicators at the level of universities and main fields. The data is made available under a CC0 public domain dedication.

Download data (2025).

Download data (2024).

Download data (2023).

The data underlying the Leiden Ranking Open Edition is also available through Google BigQuery.

Open Google BigQuery (2025).

Open Google BigQuery (2024).

Open Google BigQuery (2023).

The results of the Leiden Ranking Open Edition and the Leiden Ranking Traditional Edition can be explored in an interactive dashboard. For the 2025 results, comparisons are limited to universities included in both editions, and only indicator values based on core publications are included, as this is the set of publications covered in both editions.

Open dashboard (2025).

Open dashboard (2024).

Open dashboard (2023).

The source code of the software used to create the Leiden Ranking Open Edition is available in GitHub under an MIT license.

Go to source code .