The developer tools you reach for every day, all in one place.

Converters, formatters, hashes, validators, and the small utilities you keep reopening stay together instead of getting lost across tabs.

GitHub

/ Tools

■

/ Tool Finder

109 tools

/ Delegatecall Storage Analyzer

Proxy Contract Source (or ABI)

Implementation Contract Source (or ABI)

/ Selected Tool

Delegatecall Storage Analyzer

Analyze storage layout compatibility for delegatecall and proxies

■ 01

What is Delegatecall?

Delegatecall executes code from another contract in the context of the calling contract. This means it uses the caller's storage, making it essential for upgradeable proxy patterns.

■ 02

How does it work?

Delegatecall preserves msg.sender and msg.value while executing another contract's code in the caller's storage context. Storage slots are accessed by position (0, 1, 2...), not by variable names. This enables proxies t…

■ 03

Sample Cases

Covers Aave V3 Pool (0x87870Bca3F3fD6335C3F4ce8392D69350B4fA4E2), Compound III (0xc3d67e4b63a3c385042d8d6b13e3e0ff485e0994), and Safe Storage Gap Pattern so you can compare common inputs and outputs quickly.

/ Code

■

/ Integration

Source code from the selected tool, shown here alongside the live version on the right.

/ Source Code

TypeScript

typescript

// No external packages needed - pure TypeScript

interface StorageSlot {
  name: string;
  type: string;
  slot: number;
  offset: number;
  size: number;
}