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/ Safe Batch Transaction Builder

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Safe Batch Transaction Builder

Build batch transactions for Gnosis Safe multi-sig wallets

■ 01

What is Safe Batch Builder?

Safe (formerly Gnosis Safe) is a popular multi-signature wallet for Ethereum and other EVM chains. The Batch Builder allows you to combine multiple transactions into a single batch, saving gas and time by requiring only…

■ 02

How does it work?

JSON Generation This tool generates a JSON file compatible with Safe's Transaction Builder app. You can: Add multiple transactions with different recipients and data Specify value (ETH/native token) to send with each tr…

■ 03

Sample Cases

Covers Multi-token transfer (USDC + DAI), Uniswap LP approval & swap, and Aave governance actions so you can compare common inputs and outputs quickly.

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

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TypeScript

typescript

// Build Safe batch transaction JSON

interface SafeTransaction {
  to: string;
  value: string;
  data: string;
  operation: 0 | 1; // 0 = Call, 1 = DelegateCall
}

function buildSafeBatch(transactions: SafeTransaction[]) {