Docker & Anvil

Need free testnet? anvil

Need free testnet with access to the internet? anvil + ngrok

Need free testnet with 100% uptime? anvil + railway

Steps

1. Fork https://github.com/hananbeer/docker-anvil
2. Deploy to http://railway.app (it's free!)
3. Go to "Settings" -> "Domains" -> "Generate Domain"
4. Go to variables -> add all (or set PORT=8545)

you done