What is the Bitcoin mempool?
The mempool is where valid unconfirmed Bitcoin transactions wait before miners include them in a block. Each node has its own mempool, so views can differ slightly.
pending transactions
Bitcoin mempool viewer.
Watch Bitcoin mempool pressure, pending transaction fee bands, and candidate block data through a visual mempool lens.
Why fee pressure changes
When many users compete for block space, fee rates rise. When demand cools down, lower-fee transactions can clear. BTCNodes shows this pressure visually instead of making humans decode endless rows.
Candidate block view
The candidate block lens uses transaction selection data to approximate what could fit into the next block from this node’s perspective. It is a view, not a promise.