Overview

Explorers are web tools for reading blockchain data. They let you look up accounts, transactions, blocks, and smart contracts, making it easy to verify activity and debug issues.

Explorer

A blockchain explorer is a website that indexes on-chain data and presents it in a searchable user interface (UI). In TON, explorers commonly show account balances, recent transactions, jettons and non-fungible tokens (NFTs), contract code and state, and links to related blocks and messages.

What explorers show

• Balances and assets: TON, jettons, and NFTs held by an address
• Transactions and messages: history, fees, phases, and traces
• Blocks and validators: block contents, masterchain and shardchain details
• Smart contracts: code, state, disassembly, and known contract type
• Analytics: top entities, volumes, gas, fees, and network health

Indexers

Indexers continuously read blocks from nodes, parse messages and transactions, and store them in a database optimized for queries. Explorers rely on these indexers to provide fast search, traces, higher-level events, and historical views beyond what a single node exposes by default.

Explorers comparison

Explorer	Type	Mainnet	Testnet	Official
Tonviewer	General-purpose	tonviewer.com	Testnet	No
Tonscan.org	General-purpose	tonscan.org	Testnet	No
Tonscan.com	General-purpose	tonscan.com	-	No
TON Explorer	Low-level/core	explorer.toncoin.org	Testnet	Yes

Official: maintained by the TON Foundation or an affiliated team

The verifier tool powers contract code verification.