Flowsurface
Open Source • Free

Analyze Liquidity & Order Flow
Across crypto derivatives markets.

Real‑time microstructure workstation: historical DOM heatmap, execution footprint clustering, adaptive aggregation, depth ladder & pace audio — processed locally in a transparent Rust core. No vendor lock‑in. You own the edge.

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Heatmap Footprint More features ↓

Built for reading the auction, not decorating it

Strip away ornamental overlays. Surface resting + shifting liquidity, actual executed volume and tempo so you can contextualize intent in real time.

Three steps. No friction.

Download

Fetch a release binary or compile (Rust) yourself in minutes.

Connect

Choose instrument (Binance / Bybit), pick a pane layout.

Observe

Read liquidity shifts, clustering & pace; frame asymmetric risk.

Control the data. Control the narrative.

Install locally. Data streams directly from exchange public APIs; nothing is routed through third‑party servers. Review code. Extend modules. No forced upgrades.

macOS (Universal) Windows Linux Install from source →

Regional Access Notice

Flowsurface connects directly from your device to exchange public endpoints. Some venues block or limit access from certain regions (e.g. U.S.). If symbols never populate or streams drop instantly, it is probably a regional restriction.

macOS – Unsigned App

First launch may be blocked because the app is not code‑signed. Allow it once:
1. Double‑click the app: when the warning appears, click Cancel (or Done).
2. Open System Settings → Privacy & Security and scroll down.
3. Click Open Anyway next to the blocked app notice.
4. Confirm (enter password) when prompted. Future launches are allowed until you update to a new binary.
This is a normal macOS Gatekeeper step for unsigned open‑source builds.

Transparent. Fast. Extensible.

Price emerges from liquidity + orderflow interaction. Your tooling should render the mechanics, not a cartoon. Hack on it, fork it, pressure‑test it.

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