Line charts connect data points with line segments to reveal trends over time or ordered categories. They are among the most versatile chart types, suitable for comparing multiple series, highlighting rate of change, and spotting seasonal patterns.

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month	revenue
Jan	42000
Feb	38500
Mar	51200
Apr	60800
May	55300
Jun	67400
Jul	72100
Aug	69800
Sep	78500
Oct	83200

{
  "title": {
    "text": "Monthly Revenue 2025"
  },
  "data": [
    {
      "month": "Jan",
      "revenue": 42000
    },
    {
      "month": "Feb",
      "revenue": 38500
    },
    {
      "month": "Mar",
      "revenue": 51200
    },
    {
      "month": "Apr",
      "revenue": 60800
    },
    {
      "month": "May",
      "revenue": 55300
    },
    {
      "month": "Jun",
      "revenue": 67400
    },
    {
      "month": "Jul",
      "revenue": 72100
    },
    {
      "month": "Aug",
      "revenue": 69800
    },
    {
      "month": "Sep",
      "revenue": 78500
    },
    {
      "month": "Oct",
      "revenue": 83200
    },
    {
      "month": "Nov",
      "revenue": 91000
    },
    {
      "month": "Dec",
      "revenue": 105600
    }
  ],
  "series": [
    {
      "type": "line",
      "xKey": "month",
      "yKey": "revenue",
      "stroke": "#6366f1",
      "strokeWidth": 2,
      "marker": {
        "enabled": true
      }
    }
  ],
  "axes": [
    {
      "position": "bottom",
      "title": {
        "text": "Month"
      }
    },
    {
      "position": "left",
      "title": {
        "text": "Revenue ($)"
      }
    }
  ],
  "legend": {
    "enabled": false
  }
}

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A simple line chart tracking monthly revenue over a full year with markers at each data point.

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