Privacy & credits
OpenCharts is a static, open source chart tool. This page describes what the application itself does with data. When published through GitHub Pages, GitHub says it logs visitor IP addresses for security; see GitHub Pages hosting information and the GitHub privacy statement.
Your charts and data
Files you open and tables you paste are read in your browser. Saved charts are stored in this browser’s local storage, without an account. A table you open in the chart editor can also remain in local storage for up to six hours so you can try another chart. You can clear it in the studio; removing a saved chart deletes that copy from this browser. Export a backup before clearing browser data.
Share links and embeds contain the chart data and settings in the URL. Anyone with that link can read the data inside it. Do not share sensitive tables through a link.
Optional network actions
- If you enter a data URL, your browser requests that address. The destination may receive normal connection details.
- Every library and data file the site uses, map boundaries included, is served from the site itself. Apart from a data URL you enter, no third-party service is contacted while you use it.
- Exported charts are your own files: they load their libraries from the public CDN named in their code.
- The site does not include advertising or analytics scripts. Your hosting provider may maintain ordinary server logs under its own policy.
Libraries and licenses
OpenCharts source code is available under the MIT license. Chart.js, D3, Apache ECharts, Arquero, chart plugins, map data, and other dependencies have their own licenses. Versions, attribution, and bundled license texts are listed in the third-party notices. Keep the applicable notices with redistributed copies.
Questions and corrections
Maintained by Hamza Salameh. For a privacy question or an attribution correction, open an issue in the project repository. The operator notice will list direct contact details when supplied.
Last updated: October 2026.