BasisOpen free chart

Depth of market, free.

The order book ladder is free on Basis, streaming live with no account and no trial. It shows the orders actually resting at each price right now, not a snapshot taken a few seconds ago.

Open it nowNo account · no trial · no card

What you get

  • A bid and ask ladder rebuilt from the venue’s level-two update stream, not from a snapshot polled on a timer
  • Resting size at every level, so a wall is visible before price arrives at it
  • The spread in price and in basis points, updated with the book
  • A sync indicator that says plainly whether your local book is in step with the venue or still catching up
  • The time and sales tape one tab away, so you can watch size disappear and see the trades that took it

Why this is usually paid for

Level-two data is the oldest paywall in trading software. Depth is a separate entitlement on equity and futures platforms, priced per exchange and per seat, and the habit carried straight into crypto tools even though crypto venues publish their books openly over a public websocket.

Basis subscribes to that public stream from your browser and rebuilds the book locally. There is no data licence to pass on and no per-user feed to meter, so there is nothing here that would justify a charge.

How to use it

  1. 1

    Open the order flow panel

    The button below opens the terminal. Open the Order Flow panel and choose the DOM tab. The book connects on its own and starts filling within a second or two of the first update arriving.

  2. 2

    Wait for the sync badge before you read size

    A local book is built from a snapshot plus a stream of updates, and until those two are stitched together the ladder is incomplete. The badge tells you when it is synchronised. Reading size before that means reading a partial book.

  3. 3

    Watch the spread, not just the levels

    The spread in basis points is the cheapest read on liquidity there is. It widens before it thins visibly on the ladder, so a spread that suddenly doubles is an early warning that the size you were counting on is being pulled.

  4. 4

    Cross-check the ladder against the tape

    A large resting order means nothing until you know whether it gets filled or pulled. Switch to Time and Sales and watch: size that trades through is real, size that vanishes without prints was never going to be there when you needed it.

Questions

Is the order book real level-two data?+

Yes. It is built from the venue’s own depth stream — a snapshot plus every incremental update — and maintained locally in your browser. It is not a periodic sample of the top few levels, which is what most free widgets show and what makes them useless for reading intent.

Which venue does the order book come from?+

Order flow — the book, the tape, the heatmap and the signals — runs on Binance spot and USD-M perpetuals. The rest of Basis covers four venues, but live depth is deliberately scoped to the one with the deepest crypto books rather than shipping a shallow version everywhere.

Does depth of market need an account?+

No. The order book opens on a live market with no sign-up, no email and no trial period. An account exists only so saved layouts and journals follow you between devices; it changes nothing about which features you can reach.

Why does the ladder sometimes say it is not synchronised?+

Because a rebuilt book is only trustworthy once the snapshot and the update stream line up. On connection, or after a network interruption, there is a short window where updates have arrived that the snapshot does not account for. The badge is honest about that window instead of drawing a book that looks complete and is not.

What is the difference between the DOM and a footprint chart?+

The DOM shows orders that have not traded — intent resting in the book right now, which can be cancelled. A footprint shows trades that have already happened, broken down by price and aggressor. One is what people say they will do, the other is what they did.

Open it and see

The chart opens with this already turned on. Nothing to configure, nothing to sign up for.

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Learn what you are looking at

Each of these explains the calculation this platform actually performs, and where the reading misleads.

Cumulative Volume Delta: which side actually lifted the marketHow CVD separates aggressive buying from aggressive selling using taker data, and why it is a genuinely different measure from every bar-based volume indicator.Net Volume: signed volume per bar, without accumulationHow net volume separates buying from selling volume on each bar, and why it is more honest than the cumulative alternatives.

Also free

Time and sales, free.A live trade tape for crypto, free and with no account. Every print with its size, its price and which side crossed the spread, as the venue publishes it.Liquidity heatmap, free.Watch resting bids and offers build and vanish over time on a live crypto order book heatmap. Free, in the browser, with no account and no trial.Order flow, free.Footprint charts with bid/ask volume, delta, imbalance and absorption on live crypto markets — free, in the browser, with no account.

Updated 2026-10-03 · All free tools · Indicator reference · Documentation · Terminal