A small (< 30 KB min), fast chart for time series, lines, areas, ohlc & bars _(MIT Licensed)
μPlot is a fast, memory-efficient Canvas 2D-based chart for plotting time series, lines, areas, ohlc & bars; from a cold start it can create an interactive chart containing 150,000 data points in 135ms, scaling linearly at ~25,000 pts/ms. In addition to fast initial render, the zooming and cursor performance is by far the best of any similar charting lib; at < 30 KB, it’s likely the smallest and fastest time series plotter that doesn’t make use of context-limited WebGL shaders or WASM, both of which have much higher startup cost and code size.
However, if you’re looking for true real-time 60fps performance with massive datasets, uPlot can only get you so far. WebGL should still be the tool of choice for applications like realtime signal or waveform visualizations: Try danchitnis/webgl-plot, huww98/TimeChart, epezent/implot.
In order to stay lean, fast and focused the following features will not be added:
<canvas>
elements to avoid continuous redraw and rescaling on each dragged pixel. If you have fewer than tens of thousands of datapoints, you can use uPlot’s API to implement smooth zooming or panning. e.g. zoom-wheel, zoom-touch. Pagination of data also works well.The docs are a perpetual work in progress, it seems. Start with /docs/README.md for a conceptual overview. The full API is further documented via comments in /dist/uPlot.d.ts. Additionally, an ever-expanding collection of runnable /demos covers the vast majority of uPlot’s API.
Benchmarks done on a ThinkPad T480S:
Full size: https://leeoniya.github.io/uPlot/demos/multi-bars.html
Raw data: https://github.com/leeoniya/uPlot/blob/master/bench/results.json
| lib | size | done | js,rend,paint,sys | heap peak,final | interact (10s) |
| -------------- | ------- | ------- | ----------------- | --------------- | ------------------- |
| [uPlot](https://leeoniya.github.io/uPlot/bench/uPlot.html) | 26 KB | 68 ms | 99 3 4 68 | 12 MB 4 MB | 196 458 135 264 |
| [Chart.js-next](https://leeoniya.github.io/uPlot/bench/Chart.js-next.html) | 222 KB | 189 ms | 275 3 3 95 | 32 MB 21 MB | 3411 35 112 6322 |
| [LightningChart](https://leeoniya.github.io/uPlot/bench/LightningChart.html) | 964 KB | --- ms | 378 4 2 70 | 24 MB 18 MB | 9647 32 59 113 |
| [dygraphs](https://leeoniya.github.io/uPlot/bench/dygraphs.html) | 125 KB | 190 ms | 286 5 3 174 | 57 MB 46 MB | 2329 272 333 415 |
| [CanvasJS](https://leeoniya.github.io/uPlot/bench/CanvasJS.html) | 477 KB | 320 ms | 400 4 2 103 | 40 MB 25 MB | 2282 541 337 481 |
| [Flot](https://leeoniya.github.io/uPlot/bench/Flot.html) | 494 KB | 320 ms | 205 7 6 307 | 24 MB 24 MB | --- |
| [dvxcharts](https://leeoniya.github.io/uPlot/bench/dvxcharts.html) | 369 KB | 347 ms | 633 41 45 72 | 42 MB 24 MB | 1476 891 294 280 |
| [Highcharts](https://leeoniya.github.io/uPlot/bench/Highcharts.html) | 381 KB | --- ms | 757 9 2 63 | 27 MB 23 MB | 1986 780 207 311 |
| [Chart.js](https://leeoniya.github.io/uPlot/bench/Chart.js.html) | 245 KB | 668 ms | 747 6 7 174 | 82 MB 76 MB | 5565 5 13 4111 |
| [Plotly.js](https://leeoniya.github.io/uPlot/bench/Plotly.js.html) | 3400 KB | 483 ms | 849 10 4 87 | 39 MB 24 MB | 1601 216 58 203 |
| [ECharts](https://leeoniya.github.io/uPlot/bench/ECharts.html) | 781 KB | --- ms | 789 4 9 1119 | 79 MB 79 MB | 2027 64 59 7696 |
| [ApexCharts](https://leeoniya.github.io/uPlot/bench/ApexCharts.html) | 459 KB | --- ms | 2298 30 135 61 | 151 MB 151 MB | 2223 259 7802 66 |
| [ZingChart](https://leeoniya.github.io/uPlot/bench/ZingChart.html) | 857 KB | 2632 ms | 2934 8 1 68 | 121 MB 97 MB | --- |
| [amCharts](https://leeoniya.github.io/uPlot/bench/amCharts.html) | 1200 KB | 6147 ms | 7159 56 15 112 | 251 MB 251 MB | 6244 1163 598 448 |
size
includes the lib itself plus any dependencies required to render the benchmark, e.g. Moment, jQuery, etc.TODO (all of these use SVG, so performance should be similar to Highcharts):
Author: leeoniya
Demo: https://leeoniya.github.io/uPlot/bench/uPlot.html
Source Code: https://github.com/leeoniya/uPlot
#javascript