Academic

Free for research, teaching and students

Academic and non-profit work gets a licence key that removes the attribution watermark, at no cost. We ask for a citation instead of payment — that is genuinely the whole exchange.

Who qualifies

Work funded by a company, or a tool you charge for, needs a commercial licence — including a university spin-out selling a product.

How to request one

  1. 1. Email us from your institutional address. That address is the whole verification step; we do not ask for documents.
  2. 2. Tell us the institution, the group or course, and roughly what you are building.
  3. 3. List the domains the key should cover, including localhost for development.
  4. 4. We reply with a key, usually within two working days.
Request a licence

Or email [email protected] directly if the button does not open your mail client.

How to cite

If a figure made with KatuCharts appears in a publication, cite the software. The repository also carries a CITATION.cff, so GitHub's "Cite this repository" button produces the same entry.

Katu Data Visualization. KatuCharts: publication-quality scientific
charts for the web. https://charts.katudv.com

Not academic? See pricing — the free tier is fully featured and covers commercial use, with the watermark.