Stock World Monitor Charts (swm_chart) is a high-performance financial charting library for Flutter, written in pure Dart, with no WebView and no JavaScript bridge.

What it includes:

• candlestick, bar, line, area, baseline, histogram and custom series
• multiple resizable panes for indicators
• price scales: normal, logarithmic, percentage and indexed-to-100
• crosshair modes, price lines, markers, watermarks and a plugin API for custom drawing on the chart
• drawing tools with a built-in editor: trend lines, Fibonacci, channels, measurements, Elliott and XABCD patterns, freehand, and more
• band fills for Bollinger bands or an Ichimoku cloud, price levels and volume profiles
• pointer capture for building your own interactive tools

It handles 100k candles at about 2 ms per frame. Touch, mouse and desktop gestures are supported, including pan, pinch zoom and axis scaling. Licensed under Apache 2.0.