Chartbuilder is designed to turn numerical data into polished, ready-to-publish static charts in just a few steps. The tool was originally developed by the financial news site Quartz for its journalists to easily create charts for their articles. Chartbuilder can create an XY chart or a chart grid with a number of options to customize formatting and appearance. A helpful preview window shows how the chart will look on mobile as well as desktop. Users can input their raw data as plaintext or import a JSON file, and they can export the final product as a PNG image, SVG, or JSON. Chartbuilder's interface is designed for functionality, but there is a steep learning curve for beginners since there are no instructions or tutorials on the page.