See the whales
move — in real time.

Watch large Bitcoin movements as they happen, and actually understand what they mean. No account. No 3-hour delay. No paywall.

Open Radar → Explain a transaction

Reads public mempool.space endpoints. Everything runs in your browser.

Depth Radar live

blip size = BTC · newest on the right

The gap

Public whale dashboards gate the interesting part — transactions of 50 BTC and up, in real time — behind a 3-hour delay or a paywall. The data is public. So we put it in your browser: free, with no account to create and nothing tracked. We also decode any transaction into plain English, and keep an open, sourced address directory. No black boxes.

Three tools, one stance: legibility and honesty.

  • Radar →

    A live, filtered view of the mempool — only large unconfirmed transactions (≥50 BTC). It refreshes itself.

  • Brief →

    Paste any transaction id. Get a plain-English read of what probably happened, with the exact logic we used and how sure we are.

  • Labels →

    An open, sourced directory of known Bitcoin addresses. Auditable. Downloadable. No proprietary black box.

How it works

  1. 01
    Public mempool API

    We read from mempool.space's public endpoints. Nothing proprietary.

  2. 02
    Your browser

    Every calculation runs client-side. No server stores your lookups.

  3. 03
    You

    Read the result. Click through to verify on the source explorer. Done.

FAQ

Is this financial advice?
No. It's a lens on public data, with its limits stated plainly.
Can you tell me who owns an address?
Only when a public, sourced label exists. Otherwise: no — and anyone claiming otherwise is guessing.
Why are there so few whales sometimes?
The public mempool feed returns only the most recent handful of pending transactions. Large ones arrive in bursts. This is the live tip, not history.
Do you track me?
No accounts, no cookies, no analytics. API calls go straight from your browser to public endpoints.