See the whales
move — learn what it means.

Free educational tools for reading large Bitcoin movements on the public chain. Live mempool radar, transaction briefs, and sourced labels — client-side, no account. Not trading signals.

Open Radar → Explain a transaction

Reads public mempool.space endpoints from your browser. Privacy disclosure →

Depth Radar live

blip size = BTC · newest on the right

Who is this for?

bitcoinwhale.org is for people who want to read the chain honestly — journalists checking a headline, developers learning UTXO patterns, students comparing mempool data to theory, and holders curious about large moves without a paywalled dashboard. It is not for traders seeking buy/sell alerts: we publish methodology, uncertainty, and disclaimers instead of conviction scores.

  • ✓ Learn consolidations, batch sends, and peel chains
  • ✓ Verify txids with transparent Brief logic
  • ✓ Audit a small open label directory
  • ✗ Price predictions or portfolio advice

Learn hub

Start with the pillar guide or dive into a topic:

The gap

Public whale dashboards often gate large-transaction views behind delays or paywalls. The underlying data is public. We put filtered mempool reads and plain-English decoders in your browser — free, with sources cited and limits stated. We also keep an open address directory you can download and audit. No black boxes, no "proprietary clustering."

Three tools, one stance: legibility and honesty.

  • Radar →

    Live filtered mempool view for large unconfirmed transactions (≥10 BTC default). Educational observation — not trading signals.

  • Brief →

    Paste any txid. Get a plain-English structural read with visible logic steps and certainty qualifiers.

  • Labels →

    Open, sourced directory of known Bitcoin addresses. Exact match only. Downloadable JSON.

How it works

  1. 01
    Public mempool API

    Your browser reads mempool.space public endpoints. Nothing proprietary.

  2. 02
    Your browser

    Calculations run client-side. We do not store your lookups on a server.

  3. 03
    You verify

    Read the result. Click through to mempool.space. Cross-check claims.

FAQ

Is this financial advice?
No. Educational on-chain reading only. See Disclaimer.
Are these trading signals?
No. Large mempool transactions are not buy or sell recommendations. The radar does not score market impact.
Can you tell me who owns an address?
Only when a public, sourced label exists in our directory. Otherwise we do not guess.
Why are there so few whales sometimes?
The public mempool feed returns only the most recent pending transactions. Large ones arrive in bursts. Leave the radar tab open to accumulate sightings during your visit.
Do you track me?
No server-side accounts or logging. API calls go from your browser to public endpoints. Google AdSense loads only if you accept cookies — see Privacy and Cookies.