Create modern smooth curve graphs with beautiful gradient fills
Controls how sharp or sweeping the curve math is.
Separate data points with commas. The math engine will automatically map bezier curves between your points.
What we do
Easily create ultra-modern smooth curve graphs. Unlike jagged standard line charts, a spline chart uses advanced bezier math to draw organic, sweeping flows between points.
Take complete control of the geometry. Use the "Smoothness" slider to dial in exactly how sharp or heavily rounded you want the peaks and valleys of your data to look.
Give your charts a premium tech-dashboard aesthetic. The engine automatically reads your line color and generates a vertical fade-out gradient perfectly beneath the curve.
Want a pure, uninterrupted swoosh of data? Easily drop the point-size slider down to 0 to completely hide the dots, leaving behind only the glowing colorful line.
Need to compare multiple trends? Click "Add Another Curve" to layer an unlimited number of different colored splines onto the same modern grid.
Your business metrics are completely private. Because our rendering engine runs natively inside your browser, your text and numbers are never uploaded or stored on any server.