All 50 blockchain explorers, ranked

How to read this table

The ranking is a weighted score, not a popularity contest, and the two produce noticeably different orders. Etherscan is far and away the most-visited explorer in the world and it does not top this list, because it is closed source, it cannot be self-hosted, and its privacy posture is poor. Those are not small things if you care about them, and if you do not, the column you actually want is "best for" rather than the number on the right.

Coverage and depth carry the most weight. An explorer that indexes one chain brilliantly scores well on depth and badly on coverage, which is why specialists such as mempool.space and beaconcha.in land mid-table despite being the best tool in the world for their particular job. Read the verdict, not just the score.

What the API column means

This is the field that changed most in the last two years, and it is the reason we test rather than quote. "Free, no key" means we sent a request from a clean machine with no registration and got data back. "Free tier, key required" means you must sign up, even though you will not pay. The distinction matters enormously if you are building something: a keyless endpoint can be called from a browser, while a keyed one has to go through a server so the key is not sitting in your page source.

Blockscout moved all its API traffic behind a key on 1 July 2026, and Etherscan trimmed its free-tier chain coverage during the same period. Neither change was loudly announced. Anything you read about explorer APIs written before 2026 is now unreliable, which is a large part of why we maintain the comparison guide separately and re-test it.

Why privacy is scored at all

Because a lookup is a disclosure. When you paste your own receiving address into an explorer, you tell that operator that the address belongs to whoever is behind your IP. Most explorers are commercial businesses, a few are owned by exchanges, and one in this directory is an intelligence platform whose entire product is linking addresses to real entities. That is legitimate, and it is also worth knowing before you type.

The explorers that score well here do one of three things: they let you run the software yourself, they publish an onion service so the lookup never leaves Tor, or they simply do not have a commercial reason to care who you are. Our guide on what an explorer learns about you goes through the mechanics properly.

Looking for a specific chain?

Each chain has its own page listing the explorers that handle its particular structure properly, because a generic multi-chain explorer will often show you technically correct data in a form that means nothing. Tron fees, Cardano stake keys, TON message chains and Sui objects all break the standard account-and-balance display.

Something missing?

We add explorers when there is a genuine reason to — a chain gaining real usage, a tool doing something the incumbents do not, or an incumbent quietly breaking. If you maintain an explorer that belongs here, or you have spotted a figure on this page that is out of date, the address is on our contact page and we do read it. We do not accept payment for inclusion, so please do not open with that.