Blockscout
Open-source multi-chain explorer
Best for: Developers and analysts working on newer EVM chains, L2s, or custom networks that use Blockscout as their primary explorer.Blockscout is an open-source block explorer designed for EVM-compatible networks. Unlike Etherscan, which is a closed-source product operated by a single company, Blockscout can be deployed by any chain, making it the default explorer for many L2s, testnets, and custom EVM chains that do not have an Etherscan deployment.
The platform provides standard block explorer functionality including transaction viewing, address lookup, token tracking, and smart contract verification. It also includes more advanced features like DApp discovery, an AI-powered search mode, NFT tracking, and a contract verification service (Vera) that works across multiple Blockscout instances.
Blockscout offers Explorer as a Service (EaaS) through eaas.blockscout.com, allowing new chains to get a hosted explorer deployment. This has made Blockscout the most widely deployed block explorer in the EVM ecosystem, running on hundreds of networks.
For data professionals, Blockscout is important because it is the explorer you will encounter most often when working with newer L2s, app-chains, and testnets that do not have Etherscan support.
Pricing
- Open-source: Free to deploy and run yourself.
- Explorer as a Service (EaaS): Hosted deployment service for chains. Contact for pricing at eaas.blockscout.com.
- The public multi-chain explorer at blockscout.com is free to use.
Chains Supported
Hundreds of EVM-compatible networks. Major deployments include Ethereum, Base, Optimism, Gnosis, Polygon, Celo, and many L2s and app-chains. Any EVM chain can deploy a Blockscout instance.
- Chain exploration: browse transactions, blocks, and addresses on EVM networks
- Contract verification: verify and publish smart contract source code across chains
- DApp discovery: find and explore decentralized applications on supported networks
- L2/testnet exploration: use as the primary explorer for chains without Etherscan
- Self-hosted explorer: deploy a branded block explorer for your own chain or network
