Blockchair – Bitcoin Blockchain Explorer For Transactions & Output?

Blockchair is an online service that lets you search bitcoin’s blockchain for anything. Find out how it works today in our Blockchair review.

What Is Blockchair?

Blockchair is an online service found at You can use the website’s search form to find any type of information on the bitcoin blockchain.

It’s kind of like a search engine – but for the bitcoin blockchain. You can use Blockchair to find transactions involving over $1 million USD of currency, for example, or check out all the blocks mined by Slush. You can even search for terms like “Marry Me” to find transactions where users have proposed over the bitcoin blockchain.

Blockchair currently only works with the bitcoin blockchain. However, the company plans to add the Ethereum blockchain next, and then move onto other blockchains.

How Does Blockchair Work?

Blockchair maintains a library of all bitcoin transactions, all blocks, and all outputs. That library is completely searchable from the top of

Bitcoin Blocks

You can see the average size of blocks by days and hours over the past few months, getting an idea of when bitcoin payments rise and fall. You can also see hashrate distribution over the past two weeks, or check blocks with the highest fee/kB in USD, the blocks with the most coindays destroyed, and the voting on scalability over the last 2016 blocks. All of this data is aggregated for convenience. Or, you can explore all 477,530 blocks yourself.

Bitcoin Transactions

Blockchair maintains a library of all bitcoin transactions. You can explore all 241 million+ transactions that have taken place to date. Or, you can see the daily circulation of bitcoins over the past few months, the median transaction fees over time, or the coindays destroyed over the past few months. Blockchair appears to keep transactions just from the last three months.

Bitcoin Outputs

You can view a distribution of output types over the last few weeks or months. You can also view the percentage of non-monetary outputs over the past few months, or the average fee per kB over the last three months. Or, just explore all 650 million+ outputs manually.

Uses For Blockchair

The uses for Blockchair are only limited by your own imagination and research. Some of the recommended search terms and use cases for Blockchair’s search engine include:

  • Searching for the biggest blocks
  • Checking transactions involving over $1 million
  • Checking for transactions involving specific wallets
  • Checking transactions involving
  • Viewing blocks mined by Slush
  • Viewing transactions involving more than $5 in fees
  • Checking addresses starting with 1dice
  • Viewing transactions with special messages like “Marry Me” or “Happy Birthday”
  • Checking mempool transactions or Coinbase transactions

Whether you’re conducting research or you’re just idly curious about what kind of people propose over bitcoin, Blockchair’s search and analytics engine opens a range of different possibilities.

Who Created Blockchair?

Blockchair is led by Nikita Zhavoronkov (Engineering Lead and Bitcoin Explorer Developer based in Moscow), Yedige Davletgaliyev (Ethereum Explorer Developer from Kazakhstan), and Alexandra Ivanisenko (Communications Officer from Germany).

The organization has partnered with the National Research Nuclear University (MEPhl), one of Russia’s leading universities, as well as China’s Bitmain and the Astana International Financial Centre.

You can contact the developers by email at [email protected] The development team lists an address in Moscow as its headquarters.

Blockchair Conclusion

Blockchair is a blockchain search and analytics engine that functions like a blockchain explorer on steroids. The platform currently works with bitcoin, but the developers plan to support Ethereum in the future. You can use Blockchair to filter blocks, transactions, and outputs by over 60 different criteria, or perform full-text searches over the blockchain.

The goal of the company is to become Google for blockchains. Google created a search engine that allowed us to harness the incredible power of the internet. Blockchair aims to do something similar for blockchain technology.

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