# Introduction

> Flowscope is an order-flow trading terminal written in Rust, for the desktop and the browser.

Flowscope shows you what the order book and the tape are doing, as it happens. It draws footprint charts, liquidity heatmaps, order-book ladders and time & sales in a workspace laid out like TradingView, and renders everything on the GPU.

The desktop app and the browser version are the same Rust code. The browser build compiles the same engine and the same interface to WebAssembly.

## What Flowscope connects to

Flowscope takes every market from the Flowscope data hub: one connection that carries every market, plus the history the hub recorded around the clock. The hub talks to each venue once for every client. Orders on live accounts are signed on your device and go straight to the venue. Without a hub the app has no market data; there is no mode on the venues directly. See [History and data](/docs/app/history-and-data#hub).

| Venue | Markets |
|---|---|
| Binance | Spot |
| Binance Futures | USDⓈ-M perpetuals |
| Binance COIN-M | Coin-margined (inverse) perpetuals, `BTCUSD_PERP`; sizes shown in the coin |
| Bybit | Linear perpetuals |
| Bybit Inverse | Inverse perpetuals, `BTCUSD`; sizes shown in the coin |
| OKX | Perpetual swaps |
| Hyperliquid | Perpetuals |
| Aster | Perpetuals |
| Lighter | Perpetuals |
| Coinbase | Spot (USD), with the whole order book |
| Bybit Spot | Spot (USDT), 1 000-level books |
| OKX Spot | Spot (USDT), 400-level books |
| Deribit | BTC and ETH inverse perpetuals, USDC perpetuals; the whole order book |
| Kraken | Spot (USD), 1 000-level books |
| All venues | One coin summed across venues, see [aggregated markets](/docs/app/aggregated-markets) |

For every market it keeps the exact order book live (a snapshot plus every change, sequence-checked), every trade, open interest, funding and liquidations where the venue publishes them. The hub records all of it, the book once a minute, and every bar, footprint and heatmap is built from that recording.

## What you can see

- A [liquidity heatmap](/docs/app/heatmap) of resting orders over time, with trade bubbles and the current book at the right edge.
- [Footprints](/docs/app/footprint) with bid × ask, delta or volume cells, imbalances and naked points of control, over the whole loaded history.
- A [DOM ladder, depth book and tape](/docs/app/dom-and-tape).
- [Volume profiles and TPO](/docs/app/profiles) per visible range or per session.
- [CVD and delta](/docs/app/cvd-and-delta), filtered by trade size, with one line per venue on aggregated markets.
- [Bar Stats](/docs/app/bar-stats), a table of order-flow statistics under each bar.
- [Liquidations](/docs/app/liquidations): markers, modelled liquidation levels and measured Hyperliquid take-profit, stop and liquidation maps.
- [Gamma exposure](/docs/app/gamma-exposure) of BTC and ETH options: call wall, put wall and gamma flip from Deribit's option chains.
- Classic [indicators](/docs/app/indicators) and [drawing tools](/docs/app/drawings), [alerts](/docs/app/alerts) and [bar replay](/docs/app/replay).
- [Paper and live trading](/docs/app/trading) from the order ticket, the chart and the ladder.
- Your own indicators and strategies in [Flowscope Script](/docs/scripting), with a Strategy Tester, and an [AI assistant](/docs/app/ai-assistant) that builds and tests them with you.

Bars can be time-based from 100 ms to weeks, or built from a number of prints (`500T`), base volume (`25V`), notional (`$1M`), a price range (`10R`), Renko bricks (`20RK`) or the delta between buyers and sellers (`50DL`).

## Start here

```cards
[Install](/docs/app/install) Build the desktop app or the browser version, or run on the simulator.
[The workspace](/docs/app/workspace) Top bar, rails, panes, link groups and the bottom bar.
[Charts](/docs/app/charts) Chart types, intervals, scales and chart settings.
[Shortcuts](/docs/app/shortcuts) Every keyboard shortcut and mouse gesture.
[Liquidity heatmap](/docs/app/heatmap) Read resting liquidity and how it changes.
[Footprint](/docs/app/footprint) Bid × ask, delta and volume per price inside each bar.
[History and data](/docs/app/history-and-data) What is kept, where it lives and how the data hub fills gaps.
[Settings](/docs/app/settings) Environment variables, preferences and defaults.
```

## Status

Flowscope runs live on desktop and in the browser, with paper trading everywhere and live trading on Hyperliquid, Binance, Bybit, OKX and Aster.

> [!NOTE]
> History reaches back as far as the data hub recorded a market: before that, a chart has no bars and no heatmap. No venue publishes historical order books, and Flowscope takes no candles or trade history from the venues. See [History and data](/docs/app/history-and-data).