Is testnet GRAM worth anything?

No. Testnet coins cannot be sold or bridged to mainnet. They are given away so developers can test without spending real money.

What is the difference between a mainnet and a testnet TON address?

Only one bit in the flag byte. That is why the same account appears as EQ/UQ on mainnet and kQ/0Q on testnet. The converter above flips that flag for you.

Where is the official TON testnet faucet?

It is the Telegram bot @testgiver_ton_bot, linked from the TON documentation. Be careful with lookalike bots or sites that ask for a seed phrase — a faucet only ever needs your address.

Why didn't my testnet coins arrive?

Most often the wallet is still showing mainnet. Switch it to testnet, or open the address in the testnet explorer to see the incoming transfer.

Can I use my mainnet wallet on testnet?

Yes. The same mnemonic gives the same account on both networks; balances and history are completely separate.

TON testnet faucet and testnet address converter

Testnet TON has no value — it exists so you can test wallets, smart contracts and dApps without risking real funds. Below: how to get free testnet coins from the official faucet, and a converter that turns any mainnet address into its testnet form and back.

1Get your testnet address
2Request coins from the faucet bot

Convert a TON address to testnet (and back)

Mainnet and testnet use the same account ID; only the flag byte differs. Paste any address — EQ, UQ, kQ, 0Q or raw — to get every form. Nothing is sent anywhere.

Mainnet or testnet TON address

Paste an address above to check it.

How to get testnet GRAM

The TON Foundation runs a Telegram bot that sends free testnet coins. It is the faucet linked from the official TON documentation.

Switch your wallet to testnet and copy your testnet address — it usually starts with 0Q or kQ. If you only have a mainnet address, convert it above.
Open @testgiver_ton_bot in Telegram and press Start.
Send the bot your testnet address and complete the check it asks for.
Wait a few seconds; the coins arrive in the same account on testnet. You can verify it in the testnet explorer.

The bot gives a small amount per request and limits how often you can ask. If you need more for heavy testing, reuse the same wallet instead of creating new ones.

Setting up a testnet wallet

Any TON wallet key pair works on both networks — the account ID is the same. What changes is which network the app talks to.

Tonkeeper and most developer wallets have a testnet switch in their settings or developer menu; enable it and the app shows your kQ/0Q address.
In code, point your SDK (for example @ton/ton) at a testnet endpoint such as testnet.toncenter.com and use the same mnemonic.
Never send mainnet GRAM to a testnet-formatted address: exchanges and wallets reject kQ/0Q addresses on mainnet for that reason.

TON testnet FAQ

Is testnet GRAM worth anything?: No. Testnet coins cannot be sold or bridged to mainnet. They are given away so developers can test without spending real money.
What is the difference between a mainnet and a testnet TON address?: Only one bit in the flag byte. That is why the same account appears as EQ/UQ on mainnet and kQ/0Q on testnet. The converter above flips that flag for you.
Where is the official TON testnet faucet?: It is the Telegram bot @testgiver_ton_bot, linked from the TON documentation. Be careful with lookalike bots or sites that ask for a seed phrase — a faucet only ever needs your address.
Why didn't my testnet coins arrive?: Most often the wallet is still showing mainnet. Switch it to testnet, or open the address in the testnet explorer to see the incoming transfer.
Can I use my mainnet wallet on testnet?: Yes. The same mnemonic gives the same account on both networks; balances and history are completely separate.

Check a TON address TON address format guide