Back to Organizations
Walnut
Stealth
Distributed
Walnut
Project Links
Description
Transaction debugging, simulations and monitoring for web3 developers.Wido
Project Links
Description
Walnut is a debugger and simulator for Cairo smart contract developers on Starknet. It offers detailed memory inspection, live error monitoring, gas profiling, and transaction simulation across Starknet appchains. Walnut helps developers understand, debug, and optimize their smart contracts before on-chain deployment.Walnut Debugger
Project Links
Description
Walnut Debugger is a web-based transaction debugger and simulator for Starknet smart contracts, enabling developers to inspect variable states at each execution step and simulate transactions before on-chain deployment. The tool supports source-code-level debugging via contract verification, call trace inspection, and gas profiling against the CairoVM.Category: Developer Tooling
Walnut EVM
Project Links
Description
Walnut EVM is an open-source transaction debugger and simulator for EVM-compatible chains, supporting Ethereum, Arbitrum, Base, Optimism, Linea, and Katana. The tool traces transaction execution, enables re-simulation with custom calldata, and provides gas profiling; it can be self-hosted against any debug-capable RPC endpoint.Category: Developer Tooling
Cairo Playground
Project Links
Description
Cairo Playground is a browser-based interactive environment for exploring the CairoVM and writing Cairo code, allowing developers to experiment with Cairo, Sierra, and CASM with step-by-step execution debugging. The tool is hosted on cairovm.codes and targets Starknet and Cairo developers who want to prototype or test contract logic without a local setup.Category: Developer Tooling
OP Scan
Project Links
Description
OP Scan is a fully open-source, lightweight block explorer purpose-built for the OP Stack and Superchain ecosystems. The explorer runs locally on a laptop, reads from any OP Stack RPC endpoint, and provides transaction search and inspection without requiring external infrastructure.Category: Block Explorer