Block Explorer URL Generator per Chain

WHAT IT DOES

The Block Explorer URL Generator per Chain is a developer tool that creates block explorer URLs for any EVM-compatible chain. It takes a chain ID and an entity identifier (address, transaction hash, or block number), queries a local registry of block explorer URL templates, and generates complete, clickable URLs. This helps developers quickly access on-chain data without remembering URL patterns for different chains or manually constructing explorer links.

HOW TO USE

Enter the chain ID (e.g., 1 for Ethereum, 137 for Polygon, 42161 for Arbitrum) and the entity identifier (an address starting with 0x..., a transaction hash, or a block number). Click "generate URL" to produce the explorer link. The tool detects the entity type and generates the appropriate URL—address links go to the address page, transaction hashes go to the transaction page, and block numbers go to the block page. Results display the chain name, entity identifier, and a clickable URL that opens in a new tab. Example buttons help you test with sample data.

TECHNICAL MECHANISM

The tool uses a built-in registry of block explorer URL templates for over 25 EVM chains. Each entry contains the chain name, base URL, and path templates for addresses, transactions, and blocks. The URL generation algorithm first validates the chain ID, then determines the entity type using regex pattern matching: addresses (0x followed by 40 hex characters), transaction hashes (0x followed by 64 hex characters), or block numbers (numeric strings). The tool constructs the full URL by combining the base URL with the appropriate path template and the entity identifier. The registry includes all major EVM chains including Ethereum, Polygon, Arbitrum, Optimism, Avalanche, BNB Smart Chain, Fantom, and many testnets. The tool provides instant URL generation without any network calls.

WHAT IT CANNOT SEE

The tool cannot verify if the generated URLs are accessible or if the entity exists on the chain. It cannot determine if the block explorer supports the specific entity type. The tool cannot detect if the chain has multiple explorers or if the primary explorer is deprecated. It cannot account for explorer URL format changes without registry updates. The tool cannot include explorers not listed in the registry database. It cannot validate if the entity identifier format is correct for the chain—it performs basic format checking but does not verify that the identifier exists on the chain.

PLEASE NOTE

This tool is designed for Ethereum Virtual Machine (EVM) compatible chains only. The registry includes the most common block explorers but may not include all explorers for every chain. Some chains may have alternative explorers (e.g., Etherscan alternatives, Blockscout instances) that are not listed. The tool provides information only and does not validate the existence of entities on the chain. Always verify that the generated URL leads to the correct page and that the entity exists. For the most up-to-date explorer information, refer to the respective chain's official documentation. The tool is intended to accelerate development workflows.