Visualize, Deploy & Test Smart Contracts with Ease
A comprehensive platform for blockchain developers to build, analyze, deploy, and interact with smart contracts on EVM chains. From security analysis to one-click deployment, Karibu eliminates complexity—no wallet setup, no gas fees, just pure development focus.
Why Karibu?
A comprehensive toolkit designed to make smart contract development accessible and intuitive
Smart Contract Analysis
Instantly analyze Solidity smart contracts for insights and security considerations
One-Click Deployment
Deploy to supported Testnets with a single click - no wallet configuration required
Security Focused
Identify potential vulnerabilities and best practices for safer contracts
Real-time Interaction
Call functions and view results immediately in an interactive environment
Sample Contracts
Browse and test pre-built contract templates for common use cases
No External Dependencies
Everything runs in your browser - no external wallet or accounts needed
How Karibu Works
From code to deployment to interaction - explore our seamless end-to-end workflow
1. Create or Upload
Start your journey by creating a new smart contract from scratch using our built-in editor with syntax highlighting, or upload your existing Solidity file. We support all Solidity versions up to 0.8.x.
// Create your contract
pragma solidity ^0.8.0;
contract MyToken {
string public name;
string public symbol;
constructor(string memory _name, string memory _symbol) {
name = _name;
symbol = _symbol;
}
}
2. Compile & Analyze
Karibu automatically compiles your contract and performs a comprehensive security analysis. Our analyzer identifies potential vulnerabilities, optimization opportunities, and provides insights into gas usage and contract structure.
Security Analysis
3. Deploy to Testnet
With a single click, deploy your contract to a supported Testnet. No wallet configuration required – Karibu handles all the deployment complexity behind the scenes. You can provide constructor arguments and customize gas settings.
Deployment Console
> Initializing deployment...
> Connecting to Testnet...
> Submitting transaction...
> Waiting for confirmation...
> Contract deployed successfully!
Contract ID: 0.0.3487291
Address: 0x7d92E83f45139D138b85D828E81706857B881F66
4. Interact & Verify
Call your contract's functions directly from our intuitive interface. View real-time transaction results, inspect return values, and verify contract behavior. Toggle between read (view) and write (transactional) functions, all with complete transaction details.
Contract Interaction
➞ "MyToken"
➞ "MTK"
✓ Transaction successful
Gas used: 51,243
Find Your Path
Choose the perfect starting point for your smart contract journey on EVM chains
Create New Contracts
Build and deploy smart contracts from scratch with our comprehensive development environment
Key Features
What You Can Do
- Write and compile Solidity contracts
- Deploy to Testnet instantly
- Get instant security feedback
- Test with sample data
- Generate and download ABI
Interact with Contracts
Connect to and interact with existing smart contracts on supported EVM networks
Key Features
What You Can Do
- Call read/write functions
- Monitor contract events
- View transaction receipts
- Track gas consumption
- Export interaction logs
Check Wallet Contracts
View and analyze all contracts deployed by any wallet address on supported networks
Key Features
What You Can Do
- Search by wallet address
- View deployed contracts
- Access contract ABIs
- Check transaction history
- Monitor contract status
Ready to build smarter contracts?
Learn about smart contracts, test your deployed solutions without integration complexity, and analyze existing contracts on supported blockchains - all in one accessible platform.