A sparkline chart is a compact inline visualization that reveals trends without axes or legends. Sparklines work especially well inside HTML table cells, where they add visual context to tabular data without consuming extra space.
This sample visualizes IMDb ratings for every season of the Spanish TV series Money Heist (La Casa de Papel). Each table row shows the season name, average rating, a line sparkline of per-episode ratings, and a column sparkline displaying each episode rating as a percentage of the season average. Data is loaded from a remote JSON file, and custom tooltips reveal the exact episode number and value on hover.
Follow the step-by-step Sparkline Chart Tutorial to learn how this chart was built. See the Sparkline Chart documentation for all configuration options.