ABI Encode Tool
Use this ABI encode tool to encode Solidity-compatible types and values into a hex payload directly in the browser.
Example Usage
Example Usage
- Encode an address and uint256 before passing them into a contract helper.
- Generate sample ABI payloads while debugging frontend transaction builders.
- Check whether your types and values match before building calldata.
ABI Encode Tool Explained
ABI Encode Tool Explained
An ABI encode tool converts Solidity types and values into the binary-compatible hex representation used by the EVM. This is useful when building calldata manually, testing contract integrations, checking payloads from scripts, or understanding how frontend inputs become on-chain bytes. By entering a list of ABI types and a matching JSON array of values, you can generate the encoded output instantly in the browser. This helps reduce mistakes when debugging low-level contract interactions, especially when you are working without a full SDK abstraction around the call.
FAQ
FAQ
What does ABI mean?
ABI stands for Application Binary Interface, the encoding format Ethereum contracts use for inputs and outputs.
Why are values entered as a JSON array?
Because the encoder needs ordered values that line up with the ordered list of ABI types.
Is this the same as a full function call payload?
Not by itself. This tool encodes the arguments, but a full function call also includes the 4-byte selector.
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