Real Testnet Runtime
Start Fiber where you are.
This page runs Fiber WASM in your browser, then connects it to a native Router through WSS. No local RPC endpoint and no simulated network state.
Connect to a Router
Use the public node's WSS multiaddr and Fiber pubkey. The multiaddr ends with a libp2p Peer ID; it is not the Fiber pubkey.
Default: fiber-testnet-public-bottle from Network Resources.
Fund and open a channel
Send Testnet CKB to this browser's funding address first. The public node currently auto-accepts channels from 499 CKB; keep extra CKB for the funding transaction fee.
The Testnet key is stored only in this browser. Different browser profiles get different addresses; clearing site data creates a new one.
Send a Testnet payment
Enter an amount and send it directly to the selected public node using Fiber keysend. No invoice is required. The button becomes available after a channel reaches Ready.