ATAS Web: Order Flow in Your Browser – on Any Device, Without Installing Anything

Until recently ATAS meant one thing: a desktop application, installed on the machine you trade from. That has always been the platform’s strength — speed, broker connections, custom indicators — and its limitation: no Linux, no tablet, no quick look at the order book from a laptop that has nothing installed. ATAS has been widening that in two steps: ATAS X (Beta) brought a native version for macOS and Windows on a new, lighter core — and now ATAS Web removes the installation altogether.

ATAS has put a browser-based version of the platform online at online.atas.net: open the address, and a footprint chart is on your screen. No download, no licence, no account required to start. ATAS calls it a prototype and is open about what is still missing — we cover that below — but the core is real, and it is free.

Why it matters even if you already run ATAS Desktop

• ATAS on every device. Linux, Chromebook, tablet, the office PC, a hotel laptop — anything with a modern browser now shows the same footprint and heatmap you know from the desktop. Mac users already have a native option in ATAS X (Beta); ATAS Web goes one step further, because there is nothing to install at all.
• A second pair of eyes without a second licence. Keep the trading workstation for execution and use any other screen for structure: the session profile on the tablet, the heatmap on the laptop next to you.
• Check the market when you are not at your desk. Where did the overnight value area form? Is yesterday’s POC still holding? Two minutes in the browser answer that before you decide whether the day is worth sitting down for.
• Show a chart to someone else. Explaining a setup to a trading partner, a student or a Discord group used to mean screenshots. Now they can open the same chart themselves.
• Nothing to maintain. No updates to install, no workspace files to move between machines. Open the URL, the platform is there.

What is in the browser version

The feature set is bigger than “prototype” suggests: footprint (bid × ask) and candlestick charts, a heatmap (currently in beta), bar types including tick, volume, delta and range, more than 240 built-in indicators — volume profile, delta and cumulative delta among them — the standard drawing tools and a free-form workspace. Data comes from dxFeed for futures and other markets. In short: everything our Learn guides describe — volume profile, footprint reading, delta and cumulative delta — can be opened and studied on real bars, on whatever device you happen to hold.

For beginners: the on-ramp that did not exist before

The biggest obstacle to learning order flow was never the concepts. It was the setup — a Windows machine, an installation, a data-feed decision — all before seeing a single footprint bar. Many people gave up right there.

ATAS Web removes that barrier entirely. A routine that works well in the browser version:

1. Structure first. Open a session volume profile on ES or NQ; find POC, value area and the low-volume gaps. A week of this teaches you to tell a balanced day from a trend day at a glance.
2. Footprint at levels only. Switch to the cluster chart and study what happened when price touched yesterday’s POC or the value-area edges: imbalances, stacked imbalances, absorption.
3. Delta against price. Add cumulative delta and look for the divergences from our delta guide.
4. One note per session. “Price rejected VAL on a sell-imbalance stack, delta stayed negative” — one sentence a day beats a hundred screenshots.

After a few weeks you know whether order flow suits how you think — at zero cost, on the computer you already have.

What the browser version cannot do (yet)

ATAS is refreshingly honest here, so we will be too:

• Delayed data. The dxFeed data is delayed by about 15 minutes. Fine for structure, studying and preparation; not for timing an entry.
• No broker or exchange connection. You cannot place orders. Execution stays on the desktop.
• No custom indicators. Only ATAS’s built-in set runs in the browser; add-ons — including all of ours — need ATAS Desktop.
• Prototype status. It is an early version, and ATAS says which features are unlocked next will depend on user feedback. Use the Share feedback button — it is rare that a platform asks its future users what to build.

So the division of labour is clear: ATAS Web for reading, preparing, learning and looking; ATAS Desktop — classic on Windows, or ATAS X (Beta) on macOS and Windows — for live data, execution and custom tools. The two complement each other rather than compete — which is presumably why ATAS made the web version free.

Getting started

• Open ATAS Web — free, in your browser, on any device.
• Free ATAS Desktop demo — when you want live data, a broker connection and our indicators.
• ATAS quick-start guide — the official walkthrough from installation to first chart.

These are partner links: if you later buy an ATAS licence through them we earn a commission at no extra cost to you — that is what keeps the indicators on this site free. Feature set as announced by ATAS for the prototype in August 2026; we will update this article as the web version grows. For the desktop platform, brokers and data feeds see our ATAS overview.