Cast Terminal — Run Foundry Cast Commands Online
Cast Commands
About this tool
Cast Terminal brings the Foundry cast CLI into the browser. Execute 70+ commands — ENS resolution, calldata encoding/decoding, balances, block and transaction lookups, signature manipulation, and on-chain reads — without installing any tooling.
Foundry's speed, no setup
Foundry cast is the go-to CLI for fast on-chain queries, but installing Rust and Foundry is a barrier for quick checks. Cast Terminal runs the same commands over a web terminal, so you get the workflow with none of the installation overhead.
What you can do
Resolve an ENS name, compute a Keccak-256, decode a transaction or calldata, check a balance, or look up a function signature — all by typing one-liners into an xterm-style shell with command autocomplete and categorized help.
Command categories
- On-chain queries: Balance, block-number, call, code, and storage reads.
- Coding utilities: ABI encode/decode, keccak, sig events, and utility math.
- KEK & research: ENS lookup, signature lookup, and address tools.
Frequently asked questions
Do I need Foundry installed?
No. Everything runs server-side via a web terminal; your browser just sends the command.
Which RPC does it query?
Queries go against public RPC endpoints via the platform proxy, so you get results without configuring a provider.