Trading charts that react, not just render.

Drag & drop order placement

Grab Buy or Sell on the price scale and drop it on the price you want. No ticket, no typing: the order is placed at the exact price under your pointer. The same gesture works on touch screens. This is a screen recording of the demo chart.

Amend by dragging the order line

Move an order by dragging its chip. FastChart asks for confirmation, showing the old and the new price, before anything is sent to your broker.

Orders never overlap

Orders at almost the same price stay readable. Pills are staggered to the left, always on their exact price row, so the right edge reads in price order at any zoom. Both recordings show the same three orders (3437.30, 3438.50, 3439.90); on the left the stagger is switched off.

Your scripts are interactive, not just drawings

Elements a script draws (labels, zones, badges) react to the end user: hover styling, clicks, double-clicks and long-press, with handlers written in the same script language. Handlers can restyle elements, show toasts or call host actions such as place_order.

1Anchored label tied to a price2Zone, no outlineBefore

1Hover: gold outline, no host codeHover

1Click the label2Toast: “HIGH LABEL clicked (1)”Click

// FCScript: Pine v6 + interactive elements
onClick(self, loc, ctx) =>
    action.toast(self.tag + " clicked")
onHover(self, loc, ctx) =>
    box.set_border_color(self.id, #FFD600)
onLeave(self, loc, ctx) =>
    box.set_border_color(self.id, #00000000)

tag1 = host.textbox(20, 0, 190, 28,
    "Click me: 20-bar high", ...)
event.click(tag1, "onClick")

zone = box.new(bar_index - 30, hi30,
               bar_index, lo30, ...)
event.hover(zone, "onHover")
event.leave(zone, "onLeave")

Script editor built in

Write, check and apply FCScript without leaving the chart. Problems, console, variables and performance panels sit under the editor; Apply runs the script on the open chart.

1Editor with completion, hover docs and diagnosticsBefore apply

1The chart updates in placeAfter apply

Multi-chart, drawings and more

Four synchronised panes in one click, a full set of drawing tools (Fibonacci shown) with a floating style toolbar, indicators, 15 chart types, replay, compare and a light theme.

1Active paneMulti-chart

1Style toolbar on selectionDrawing tools

Why FastChart