An open-source native desktop charting application for crypto markets. Supports Binance, Bybit, Hyperliquid, OKX, and MEXC.

• Multiple chart/panel types:
  • Heatmap (Historical DOM): Uses live trades and L2 orderbook to create a time-series heatmap chart. Supports customizable price grouping, different time aggregations, fixed or visible range volume profiles.
  • Candlestick: Traditional kline chart supporting both time-based and custom tick-based intervals.
  • Footprint: Price grouped and interval aggregated views for trades on top of a candlestick chart. Supports different clustering methods, configurable imbalance and naked-POC studies.
  • Time & Sales: Scrollable list of live trades.
  • DOM (Depth of Market) / Ladder: Displays current L2 orderbook alongside recent trade volumes on grouped price levels.
  • Comparison: Line graph for comparing multiple data sources, normalized by kline close prices on a percentage scale
• Real-time sound effects driven by trade streams
• Multi window/monitor support
• Pane linking for quickly switching tickers across multiple panes
• Persistent layouts and customizable themes with editable color palettes

• By default, it captures and plots live trades in real time via WebSocket.
• For Binance tickers, you can optionally backfill the visible time range by enabling trade fetching in the settings:
  • data.binance.vision: Fast daily bulk downloads (no intraday).
  • REST API (e.g., /fapi/v1/aggTrades): Slower, paginated intraday fetching (subject to rate limits).
  • The Binance connector can use either or both methods to retrieve historical data as needed.
• Fetching trades for Bybit/Hyperliquid is not supported, as both lack a suitable REST API. OKX is WIP.

Standalone executables are available for Windows, macOS, and Linux on the Releases page.

• Rust toolchain
• Git version control system
• System dependencies:
  • Linux:
    • Debian/Ubuntu: sudo apt install build-essential pkg-config libasound2-dev
    • Arch: sudo pacman -S base-devel alsa-lib
    • Fedora: sudo dnf install gcc make alsa-lib-devel
  • macOS: Install Xcode Command Line Tools: xcode-select --install
  • Windows: No additional dependencies required

# Install latest globally
cargo install --git https://github.com/flowsurface-rs/flowsurface flowsurface

# Run
flowsurface

# Clone the repository
git clone https://github.com/flowsurface-rs/flowsurface

cd flowsurface

# Build and run
cargo build --release
cargo run --release

• Kraken Desktop (formerly Cryptowatch), the main inspiration that sparked this project
• Halloy, an excellent open-source reference for the foundational code design and the project architecture
• And of course, iced, the GUI library that makes all of this possible

For feedback, questions, or for more casual conversations about the project, join our community on Discord:
https://discord.gg/RN2XAF7ZuR

Flowsurface is released under the GPLv3 license. Contributions to the project are shared under the same license.