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What blockchain explorers exist and

  1. What special features do they have?
  2. Are they open-source?
  3. How reliable are they (approximate uptime in %)?
  4. Is there a testnet version?
39

Hosted Main Chain Explorers:

https://ethtools.com/mainnet/chain

Can explore:

  1. Contract Addresses
  2. Non Contract Addresses
  3. Transactions (and their internal steps)
  4. Blocks
  5. Contract Code

https://www.etherchain.org

Can explore:

  1. Contract Addresses
  2. Non Contract Addresses
  3. Transactions
  4. Blocks
  5. Contract Code

https://live.ether.camp

Can explore:

  1. Contract Addresses
  2. Non Contract Addresses
  3. Transactions
  4. Blocks
  5. Contract Code
  6. Contract Storage (appears to the be only service to do so)
  7. VM execution trace

http://etherscan.io

Can explore:

  1. Contract Addresses
  2. Non Contract Addresses
  3. Transactions
  4. Blocks
  5. Contract Code

Hosted Testnet (Ropsten) Explorers:

Hosted Testnet (Rinkeby) Explorers:

PoA testnet started by the Ethereum team, uses Clique PoA consensus protocol, supported by geth only

Hosted Testnet (Kovan) Explorers:

PoA testnet started by the Parity team, supported by parity only

Open source projects:

Outdated / defunct explorers:

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