Swap testnet coins on demand, non-custodially
Atomic swaps between Litecoin testnet (tLTC) and Bitcoin testnet4 (tBTC), plus experimental Monero (tXMR/sXMR) swaps into either, where a maker offers them. You hold your own keys, so nobody ever holds your coins. If anything stalls, your browser can refund what you locked, minus network fees, after the deadline.
Swap
The swap runs in your browser on the swap page. Or use it in TestnetWallet.
Live
How it works
Setup
You pick a pair and amount. Your browser and the maker agree the rate and two refund deadlines over a relay that only passes messages. It holds no keys or coins.
You lock
Your browser locks your coins in a hash-timelock contract (HTLC) on the send chain. Only you can refund it after your deadline.
They lock
The maker sees your funded contract and locks the other coin in a matching HTLC on the receive chain, with a shorter deadline.
You claim
You claim the maker's coins by revealing a secret. That same secret lets the maker claim yours. Swap complete, atomically.
The worst case if anything stalls: you reclaim what you locked, minus network fees, after your deadline. A maker can never take your coins: it can't claim yours without revealing the secret that lets you claim the maker's coins. Read the details →
What this is
Non-custodial & atomic
The service never holds your funds. Coins are only ever in a contract that completes the swap or refunds to you.
Testnet only
tLTC, tBTC and tXMR/sXMR are worthless test coins. This is infrastructure for builders, not a market. The rate is a fixed nominal value.
An open maker network
Anyone can run a maker and join the network, and you pick which one fills your swap. Your safety never depends on the choice. Pairs are tLTC↔tBTC, plus tXMR/sXMR→tBTC (or tLTC where a maker offers it).
Monero (tXMR / sXMR → tBTC or tLTC)
Monero swaps are experimental and run locally in your browser, where a maker offers them, using a cross-curve adaptor-signature protocol instead of the HTLC design. See how it works. Need test coins first? Use the faucet.
