Bitcoin Core

free · open source
Rung 3 · Verify/ Money Trustless

Bitcoin Core is the reference full-node software for Bitcoin. It downloads and independently verifies the entire blockchain on your own hardware, so you never have to ask an exchange or block explorer what the ledger says — you check it yourself. It needs several hundred gigabytes of disk and patience for the initial sync, but every other rung builds on it.

Trust shape

Trustless

Runs on your hardware with no third party in the loop — nobody can stop it, nobody can take it.

Facts

Editor's note

You stop asking anyone what the chain says; you check.

Build or maintain Bitcoin Core? Claim this listing to keep its facts current.

Frequently asked questions

Should you run your own Bitcoin node?
If you want to verify instead of trust, yes. A full node downloads and independently checks the whole chain on your hardware, so you stop asking an exchange or block explorer what the ledger says and confirm your own payments yourself. It is the rung every higher sovereignty move builds on. The honest cost: several hundred gigabytes of disk and patience for the first sync. You can absolutely run one safely with the same wallet care you'd take anywhere.
Do I need a Bitcoin node?
You don't need one to hold or send Bitcoin... plenty of people never run one. But it's the only way to verify the rules and your own payments yourself instead of trusting a third party's view of the chain. If self-custody is the floor, a node is the next step up: every higher rung (Lightning, your own wallet server) builds on it. Skip it and you're still trusting someone else's answer about what's true.
How much does it cost to run your own Bitcoin node?
The software is free and open source. The real costs are hardware and disk: several hundred gigabytes of storage plus a machine left running, like a Raspberry Pi or a spare computer. Budget for the initial sync too... that's hours to a few days of the machine working before it's caught up. Ongoing, it's a small always-on power draw and occasional disk space as the chain grows. No subscription, no vendor, no recurring fee.
Do Bitcoin nodes make money?
No. A full node is not mining and earns no rewards... that's a common mix-up. Mining competes to add blocks for a payout; a node just verifies the ledger and relays transactions. The payoff is different: you confirm the chain yourself and broadcast your own transactions without leaking them to a third party. If you're after income, this isn't it. If you're after verification and privacy, it's the whole point.
How long does it take to sync a Bitcoin full node?
Anywhere from many hours to a few days for the initial sync, depending on your hardware, internet speed, and disk speed. The slow part is by design: Bitcoin Core verifies the entire history itself rather than trusting a snapshot someone handed you. A fast SSD and a wired connection shorten it a lot; a Raspberry Pi on a slow disk stretches it out. After that first sync, it just keeps up in the background.

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