Sonic Logo
Mantle

Smart Contract Components

Drag components to canvas

Constructor
Initialize contract state
Gas: ~21000
Simple Mapping
Key-value mapping storage
Gas: ~20000
Array Return Function
Function returning dynamic arrays
Gas: ~45000
Enum Definition
Define enumerated types
Gas: ~0
State Variable
Store data on blockchain
Gas: ~20000
Payable Function
Function that can receive Ether
Gas: ~23000
View Function
Read-only function
Gas: ~0
Access Control
Role-based permissions
Gas: ~2300
Multi-Signature
Require multiple approvals
Gas: ~5000
Indexed Event
Searchable blockchain event
Gas: ~1500
Nested Mapping
Complex data relationships
Gas: ~20000
Struct
Custom data structure
Gas: ~0
Time Lock
Time-based restrictions
Gas: ~2100
Liquidity Pool
AMM liquidity pool logic
Gas: ~150000
Reentrancy Guard
Prevent reentrancy attacks
Gas: ~2300
ERC-20 Advanced
Full ERC-20 with extensions
Gas: ~500000
ERC-721 NFT
Non-Fungible Token standard
Gas: ~800000
DAO Voting
Decentralized voting mechanism
Gas: ~180000
Price Feed Oracle
Chainlink price feed integration
Gas: ~42000
Diamond Storage
EIP-2535 Diamond storage pattern
Gas: ~0
Bridge Connector
Cross-chain bridge integration
Gas: ~250000
Batch Transfer
Gas-optimized batch operations
Gas: ~65000
Upgradeable Proxy
OpenZeppelin upgradeable proxy
Gas: ~350000
Flash Loan
Flash loan functionality
Gas: ~120000

Visual Smart Contract Builder

Build smart contracts visually without code

🎯
Start Building
Drag components from the sidebar to create your smart contract
Quick Start:
1. Drag a Constructor to initialize your contract
2. Add State Variables to store data
3. Create Functions for contract logic
4. Click Generate Code to see Solidity