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tonutils

About TonUtils

TonUtils is a free toolbox for The Open Network. People who hold Gram (GRAM, formerly Toncoin) get simple, safe tools for everyday questions: which address is mine, how much is this in nanoGRAM, what does this transaction do. Developers get the converters, decoders and lookups they would otherwise rewrite for every project.

Toncoin is now Gram (GRAM). Same TON network.
The coin was renamed on 15 June 2026. Balances, addresses and units did not change: 1 GRAM is still 1,000,000,000 nanoGRAM (nanoTON). There is nothing to swap; any “migration” offer is a scam.

Privacy promise

  • Your browser does the work

    Seed phrases, private keys and signatures are computed in JavaScript on your device. They are never sent to our server, and we do not have a server that could receive them.

  • Chain data comes from public APIs

    Tools that read the blockchain call toncenter or tonapi directly from your browser. The address you look up is visible to that API, like on any explorer.

  • Your wallet signs, not us

    Tools that send transactions use TonConnect. You approve each one in your own wallet app. TonUtils never holds keys or funds.

  • No accounts, no tracking of inputs

    There is no sign-up. We do not log what you type into tools. The only thing we keep is your mainnet/testnet choice, in a cookie on your device.

Open source

Every line is public, so you can check these promises yourself. Tools are small, self-contained folders with tests, which makes them easy to review and to contribute.

View source on GitHubSuggest a tool

TonUtils is an independent project and is not affiliated with the TON Foundation. Tools are provided as is. Double-check addresses and amounts before you send funds.