Merkle Tree Builder

Leaf Data (one per line)

Algorithm

About Merkle Trees

Bitcoin — Uses Merkle trees for block transactions

Ethereum — Merkle Patricia Tries for state

Proof — Verify 1 tx without full block data

Root = fingerprint of ALL data. Change 1 leaf → different root

Used in SPV wallets, NFT whitelists, zk-proofs

Tree Structure

Build the tree to see structure.

Merkle Root

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Click root to copy. Change any leaf to get a completely different root.

Merkle Proof Generator & Verifier

Leaf Index to Prove (0-based)

Build a tree, then generate a proof for a leaf.

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