What is a pruned Monero node?
A pruned Monero node is a copy of the Monero network software that checks the blockchain but keeps only part of its older, removable data. It gives you most of the benefits of running your own node while using much less disk space—typically about two-thirds less than an unpruned node.
What gets removed?
The blockchain is Monero’s shared history of transactions, arranged in groups called blocks. A node downloads and checks that history to make sure it follows Monero’s rules.
Some transaction data contains cryptographic proofs: mathematical evidence that a transaction is valid without revealing private details. Once your node has checked these proofs, it does not need to keep every old proof to keep checking new blocks.
Pruning removes much of that older proof data. It does not simply delete all blocks before a certain date.
Your node still keeps:
- The record of blocks and essential transaction information.
- The information needed to check new transactions and blocks.
- A portion of older proof data that it can share with other nodes.
Monero keeps roughly one-eighth of the prunable historical data. That does not mean the whole blockchain becomes one-eighth its original size, because other data must stay.
Does it still check everything?
Yes. A pruned node still independently checks the blockchain against Monero’s rules. You are saving storage, not handing transaction checking over to someone else.
During the first synchronization—when your node catches up with the network—it still downloads and verifies the data needed to check the chain. It then discards the parts it does not need to retain.
That means pruning mainly saves disk space. It does not let you skip the initial checking process, and you should not expect download traffic or setup time to shrink by the same proportion.
The trade-off is what your node can share afterward. An unpruned node can serve the complete historical data. A pruned node can only serve the historical portions it still holds.
Can you use it for mining and your wallet?
Yes. A pruned Monero node can support solo mining and P2Pool, a mining pool that runs without a central pool operator. Keeping every old transaction proof is not required to build and check new blocks.
Pruning itself does not reduce your mining speed or improve your odds of finding a block. Your mining hardware does that work; your node supplies and checks blockchain information.
You can also connect your Monero wallet to your pruned node. Your wallet keeps your spending keys—the secrets that let you spend your coins—separate from the node’s blockchain database. Pruning does not remove your coins or erase your wallet’s transaction history.
How do you enable pruning?
When starting Monero’s node program, monerod, you can enable pruning with:
monerod --prune-blockchain
Starting with a fresh pruned database is usually the simplest approach. Pruning an existing database may free space inside the database without immediately shrinking its file on your disk.
Keep spare disk space available: a pruned blockchain still grows. If you later want a fully unpruned node, the discarded data must be downloaded again.
The bottom line
A pruned node is a practical choice when you want to verify Monero yourself, use your own wallet connection, or support mining without storing every historical proof. You save substantial disk space while keeping independent verification.
