Web3 Playground & Sandbox - Learn, Develop, Test MCP Servers + Toolkit SDK
JSON →Free Solidity compiler & Web3 IDE with interactive tutorials. Learn blockchain development, deploy smart contracts to 8+ chains (Ethereum, Polygon, Base, Arbitrum, Solana). Templates for tokens, NFTs, DeFi, DAOs. Monaco Editor, AI assistance, WCAG accessible. Remix alternative. Gas optimization, MetaMask integration, open source. Beginner-friendly. MCP toolkit.
Tools · 9
- Web Sandbox Full-featured web IDE with React, Vue, Python, live preview, Vim mode
- Solidity IDE Smart contract IDE with multi-version compiler (0.6.x - 0.8.24)
- Full-Stack Playground Build complete dApps with contract + frontend + live preview
- Interactive Sandbox IDE with AI assistant, templates, and testnet deployment
- Innovation Lab Experimental AI features including AI Code Whisperer, Contract Time Machine, Security Testing Lab, Collaborative Arena, Neural Gas Oracle, and Cross-Chain Deployer
- Contract Playground Template-based contract editor
- Learning Playground Interactive tutorials
- Markets Live crypto prices & DeFi data
- Explore Community projects gallery
Environment variables
BACKEND_API
Links
★ 24 GitHub stars