Blockchain developer tools

Calculators and converters for the numbers that come up while building a payment or wallet integration: what a transfer costs, which unit a value is in, and whether an address is valid. Each tool runs in the browser and needs no account and no API key.

Every page also shows the calculation behind the result, so you can check it against the chain instead of taking the number on trust.

• TRON TRON Fee Calculator Bandwidth, Energy and the TRX burned for one TRX, TRC-10 or TRC-20 transfer, calculated for the actual sender and recipient.
• TRON TRON Energy and Bandwidth Calculator How much Energy and Bandwidth an operation consumes, and how much TRX you would have to stake to cover it instead of burning.
• Bitcoin Bitcoin Fee Calculator What a Bitcoin transaction costs at a given fee rate, from transaction size in vBytes to the total in sats and BTC.
• Ethereum Gwei Converter Convert between wei, gwei and ETH, the three units that appear in gas prices, RPC responses and wallet screens.
• TRON, Ethereum, BNB Smart Chain Address Validator Check the format and checksum of a TRC-20, ERC-20 or BEP-20 address before you send anything to it.
• TRON, BNB Smart Chain TRON to PHP Converter Converting TRX, TRC-20 USDT and BEP-20 tokens to Philippine pesos: where a live rate comes from, and which network fee applies first.

The same chain data these tools read is available over the API. The developer documentation covers the endpoints, and the plans start at 49 € per month (490 € per year), with a 7-day test that needs no credit card and no KYC.