Chartlyn — Animated Line Race Charts

What it does

Chartlyn turns your CSV data into broadcast-ready animated line race charts. No code, no plugins — just upload, customize, and export as MP4, WebM, or GIF. Free to start: supports up to 7 series, 24 columns, 7s duration with a Chartlyn watermark. Upgrade for unlimited series, full HD/4K, custom logo, custom background, and all templates.

• CW
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  Creator here. I built ChartGPU because I kept hitting the same wall: charting libraries that claim to be "fast" but choke past 100K data points. The core insight: Canvas2D is fundamentally CPU-bound. Even WebGL chart libraries still do most computation on the CPU. So I moved everything to the GPU via WebGPU: - LTTB downsampling runs as a compute shader - Hit-testing for tooltips/hover is GPU-accelerated - Rendering uses instanced draws (one draw call per series) The result: 1M points at 60fps with smooth zoom/pan. Live demo:…

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