
4Byte
Ethereum four-byte signature search by Snake Charmers.

What is 4Byte?
The 4byte database contains function signatures and mappings for event signatures, all offered free of license for search or scraping. Developers can map bytes signatures results from searches back to their human-readable sources and versions. There are currently 1,448,930 (and counting) signatures in the database.
Web3 dapps and developer tools related to 4Byte
Discover blockchain applications that are frequently used with 4Byte.
Developer resources from Alchemy

The 6 best Solidity IDEs for developers (2026)
Explore the best IDEs for Solidity development.

A developer's guide to the web3 stack
The web3 stack in 2026, layer by layer: networks, infrastructure, smart contracts, wallets, frontends, storage, applications, and the new agentic layer.

How Enya Labs migrated Boba Network to our rollups in less than 1 hour
With deep OP Stack customizations and rapid growth, Boba turned to Alchemy Rollups for a seamless, sub-hour migration and a scalable, developer-ready foundation.
4Byte alternatives
Explore web3 competitors and apps like 4Byte.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

