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Blockscout Review (2026)

Open-source block explorer self-hostable on any EVM chain

4.3(431)
Block ExplorersFree plan

Last updated: June 2026

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What is Blockscout?

Blockscout is an open-source EVM block explorer that has become the go-to solution for Layer 2 networks, app chains, and testnets that want a full-featured explorer without paying Etherscan's licensing fees or waiting for Etherscan to build dedicated support. It's the official explorer for Gnosis Chain, Optimism, Base, Celo, Rootstock, Lukso, and dozens of other EVM networks. The codebase is fully open-source (Apache 2.0 license), meaning any chain can deploy and customize it without restrictions. Blockscout's UI has been modernized significantly in 2024–2025, closing the gap with Etherscan's established design. It now includes a DeFi tab showing protocol interactions per address, an NFT dashboard, multi-chain search, and Microservices architecture that allows individual components (API, indexer, frontend) to scale independently. For developers building on new chains or L2s, Blockscout is often the first explorer available at launch because chains can deploy it themselves without waiting for a third party. Blockscout Cloud offers a hosted version for chains that want the benefits of self-hosted open source without running the infrastructure themselves.

Blockscout Pros & Cons

Pros

  • ✓ Fully open source — any chain can deploy and customize it freely
  • ✓ Official explorer for Base, Optimism, Gnosis Chain, and 50+ other networks
  • ✓ Modern, actively developed UI that rivals Etherscan in usability
  • ✓ Multi-chain search across all Blockscout instances from one interface
  • ✓ GraphQL and REST APIs with no rate limits on self-hosted deployments

Cons

  • ✗ Self-hosting requires infrastructure setup — not instant like Etherscan
  • ✗ No address labels or private notes features
  • ✗ Community-maintained chain support is less thorough than Etherscan's curated data
  • ✗ Cloud hosted pricing requires direct engagement — no self-serve
  • ✗ Less ecosystem recognition among non-technical users than Etherscan

Blockscout Pricing (2026)

Blockscout offers a free plan.

Blockscout

Free (Self-hosted)

Free

  • ✓Full source code
  • ✓Self-hostable
  • ✓All EVM chains
  • ✓Customizable UI
  • ✓REST + GraphQL APIs
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Blockscout

Cloud Hosted

Custom

  • ✓Managed hosting
  • ✓Auto-scaling
  • ✓Priority support
  • ✓Custom domain
  • ✓SLA
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Blockscout Features

FeatureBlockscout
Transaction History✓
Contract Verification✓
Token Tracking✓
Nft Tracking✓
Api Access✓
Multi Chain Support✓
Gas Tracker✓
Source Code Viewer✓
Address Labels✗
Private Notes✗

Frequently Asked Questions

Is Blockscout free?

Yes, Blockscout has a free plan.

What is Blockscout used for?

Blockscout is used for open-source block explorer self-hostable on any evm chain. It's primarily used by Web3 teams in the Block Explorers category.

What are the best alternatives to Blockscout?

See our full alternatives comparison at web3tools.directory/alternatives/blockscout.

How does Blockscout compare to other block explorers tools?

Blockscout has a rating of 4.3/5 based on 431 reviews. Key strength: Fully open source — any chain can deploy and customize it freely. Main limitation: Self-hosting requires infrastructure setup — not instant like Etherscan.

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