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Ethereum Signature Database (4Bytes DB)
About Ethereum Signature Database
Function calls in the Ethereum Virtual Machine(EVM) are specified by the first four bytes of data sent with a transaction. These 4-byte signatures are defined as the first four bytes of the Keccak hash (SHA3) of the canonical representation of the function signature. The database also contains mappings for event signatures. Unlike function signatures, they are defined as 32-bytes of the Keccak hash (SHA3) of the canonical form of the event signature. Since this is a one-way operation, it is not possible to derive the human-readable representation of the function or event from the bytes signature. This database is meant to allow mapping those bytes signatures back to their human-readable versions.
There are 2,192,612 signatures in the database (and counting)
Last update: December 09th 2023
Search Signatures (Free)
You can decode 4byte signature Ethereum to human-readable: Function Name, ABI , Text Signature, Mutability, Constant, Payable...
Found signature of 0x70a08231
- Text Signature: balanceOf(address)
- Mutability: view
- Constant: false
- Payable: false
- Function: function balanceOf(address account) view returns(uint256)
- ABI:
{"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","type":"function","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view"}
Search FunctionName (Free)
You can search funcName to get list 4byte signatures Ethereum, then auto decode to human-readable: Function Name, 4Byte , Text Signature...
Found 2 signature of function sweepTokenWithFee
1. Found signature of sweepTokenWithFee
- Text Signature: sweepTokenWithFee(address,uint256,uint256,address)
- 4Byte: 0x3068c554
- Function: function sweepTokenWithFee(address token, uint256 amountMinimum, uint256 feeBips, address feeRecipient) payable returns()
- Note: found 21 contracts using this function
2. Found signature of sweepTokenWithFee
- Text Signature: sweepTokenWithFee(address,uint256,address,uint256,address)
- 4Byte: 0xe0e189a0
- Function: function sweepTokenWithFee(address token, uint256 amountMinimum, address recipient, uint256 feeBips, address feeRecipient) payable returns()
- Note: found 44 contracts using this function
Random signature 4Bytes Database
| 4Byte | Text Signature | Function | Contracts |
|---|---|---|---|
| 0x6b2bafc8 | mintBadge(address,string) | function mintBadge(address to, string badgeURI) returns() | 3 |
| 0x906ade3b | minSenderMintFee() | function minSenderMintFee() view returns(bool) | 1 |
| 0xceca01f0 | _blockTimeStamp() | function _blockTimeStamp() view returns(uint256) | 1 |
| 0x7b939da0 | burnedTokensTracker() | function burnedTokensTracker() view returns(uint256 totalBurned, uint256 burnedLast24Hours) | 1 |
| 0x89c5bfb8 | TWAP_FEE() | function TWAP_FEE() view returns(uint112) | 1 |
| 0x9e8beb2b | bindInvitor(address) | function bindInvitor(address invitor) returns() | 19 |
| 0xf919e3e7 | updatePancakeV2Router(address,bool,address) | function updatePancakeV2Router(address newAddress, bool _createPair, address _pair) returns() | 51 |
| 0xfc98cac0 | setRealGlpApr(uint256) | function setRealGlpApr(uint256 newValue) returns() | 1 |
| 0xe4d44e64 | getLiquidityFeeForBuy() | function getLiquidityFeeForBuy() view returns(uint256) | 3 |
| 0x1fd1b0be | queryMyTeamGradeByTeamInvest(address) | function queryMyTeamGradeByTeamInvest(address user) view returns(uint256) | 1 |
ERC-20 Token Standard 4Byte Signatures
| 4Byte | Text Signature | Function | Contracts |
|---|---|---|---|
| 0x06fdde03 | name() | function name() pure returns(string) | 480506 |
| 0x313ce567 | decimals() | function decimals() view returns(uint8) | 447469 |
| 0x95d89b41 | symbol() | function symbol() view returns(string) | 480081 |
| 0x18160ddd | totalSupply() | function totalSupply() view returns(uint256) | 476376 |
| 0x095ea7b3 | approve(address,uint256) | function approve(address spender, uint256 amount) returns(bool) | 478757 |
| 0xa457c2d7 | decreaseAllowance(address,uint256) | function decreaseAllowance(address spender, uint256 subtractedValue) returns(bool) | 249917 |
| 0x39509351 | increaseAllowance(address,uint256) | function increaseAllowance(address spender, uint256 addedValue) returns(bool) | 249924 |
| 0xa9059cbb | transfer(address,uint256) | function transfer(address recipient, uint256 amount) returns(bool) | 446609 |
| 0x23b872dd | transferFrom(address,address,uint256) | function transferFrom(address sender, address recipient, uint256 amount) returns(bool) | 478767 |
UniswapV2 / PancakeSwapV2 4Byte Signatures
| 4Byte | Type | Function |
|---|---|---|
| 0xc45a0155 | RouterV2 | function factory() view returns(address) |
| 0x85f8c259 | RouterV2 | function getAmountIn(uint256 amountOut, uint256 reserveIn, uint256 reserveOut) pure returns(uint256 amountIn) |
| 0x054d50d4 | RouterV2 | function getAmountOut(uint256 amountIn, uint256 reserveIn, uint256 reserveOut) pure returns(uint256 amountOut) |
| 0x1f00ca74 | RouterV2 | function getAmountsIn(uint256 amountOut, address[] path) view returns(uint256[] amounts) |
| 0xd06ca61f | RouterV2 | function getAmountsOut(uint256 amountIn, address[] path) view returns(uint256[] amounts) |
| 0xad615dec | RouterV2 | function quote(uint256 amountA, uint256 reserveA, uint256 reserveB) pure returns(uint256 amountB) |
| 0xad5c4648 | RouterV2 | function WETH() view returns(address) |
| 0x8dd95002 | RouterV2 | function WBNB() view returns(address) |
| 0xe8e33700 | RouterV2 | function addLiquidity(address tokenA, address tokenB, uint256 amountADesired, uint256 amountBDesired, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline) returns(uint256 amountA, uint256 amountB, uint256 liquidity) |
| 0xf305d719 | RouterV2 | function addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) payable returns(uint256 amountToken, uint256 amountETH, uint256 liquidity) |
| 0xeaaed442 | RouterV2 | function addLiquidityBNB(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountBNBMin, address to, uint256 deadline) payable returns(uint256 amountToken, uint256 amountBNB, uint256 liquidity) |
| 0xbaa2abde | RouterV2 | function removeLiquidity(address tokenA, address tokenB, uint256 liquidity, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline) returns(uint256 amountA, uint256 amountB) |
| 0x02751cec | RouterV2 | function removeLiquidityETH(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) returns(uint256 amountToken, uint256 amountETH) |
| 0xaf2979eb | RouterV2 | function removeLiquidityETHSupportingFeeOnTransferTokens(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) returns(uint256 amountETH) |
| 0xded9382a | RouterV2 | function removeLiquidityETHWithPermit(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) returns(uint256 amountToken, uint256 amountETH) |
| 0x5b0d5984 | RouterV2 | function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) returns(uint256 amountETH) |
| 0xe0588488 | RouterV2 | function removeLiquidityBNB(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountBNBMin, address to, uint256 deadline) returns(uint256 amountToken, uint256 amountBNB) |
| 0xb7e65949 | RouterV2 | function removeLiquidityBNBSupportingFeeOnTransferTokens(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountBNBMin, address to, uint256 deadline) returns(uint256 amountBNB) |
| 0x34a0772d | RouterV2 | function removeLiquidityBNBWithPermit(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountBNBMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) returns(uint256 amountToken, uint256 amountBNB) |
| 0x685a0a34 | RouterV2 | function removeLiquidityBNBWithPermitSupportingFeeOnTransferTokens(address token, uint256 liquidity, uint256 amountTokenMin, uint256 amountBNBMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) returns(uint256 amountBNB) |
| 0x2195995c | RouterV2 | function removeLiquidityWithPermit(address tokenA, address tokenB, uint256 liquidity, uint256 amountAMin, uint256 amountBMin, address to, uint256 deadline, bool approveMax, uint8 v, bytes32 r, bytes32 s) returns(uint256 amountA, uint256 amountB) |
| 0xfb3bdb41 | RouterV2 | function swapETHForExactTokens(uint256 amountOut, address[] path, address to, uint256 deadline) payable returns(uint256[] amounts) |
| 0x7ff36ab5 | RouterV2 | function swapExactETHForTokens(uint256 amountOutMin, address[] path, address to, uint256 deadline) payable returns(uint256[] amounts) |
| 0xb6f9de95 | RouterV2 | function swapExactETHForTokensSupportingFeeOnTransferTokens(uint256 amountOutMin, address[] path, address to, uint256 deadline) payable returns() |
| 0x18cbafe5 | RouterV2 | function swapExactTokensForETH(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0x791ac947 | RouterV2 | function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns() |
| 0x38ed1739 | RouterV2 | function swapExactTokensForTokens(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0x5c11d795 | RouterV2 | function swapExactTokensForTokensSupportingFeeOnTransferTokens(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns() |
| 0x4a25d94a | RouterV2 | function swapTokensForExactETH(uint256 amountOut, uint256 amountInMax, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0x4a25d94a | RouterV2 | function swapTokensForExactETH(uint256 amountOut, uint256 amountInMax, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0x8332a963 | RouterV2 | function swapBNBForExactTokens(uint256 amountOut, address[] path, address to, uint256 deadline) payable returns(uint256[] amounts) |
| 0x9cf68911 | RouterV2 | function swapExactBNBForTokens(uint256 amountOutMin, address[] path, address to, uint256 deadline) payable returns(uint256[] amounts) |
| 0x50e27df3 | RouterV2 | function swapExactBNBForTokensSupportingFeeOnTransferTokens(uint256 amountOutMin, address[] path, address to, uint256 deadline) payable returns() |
| 0x5d616c5b | RouterV2 | function swapExactTokensForBNB(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0xd46d2f83 | RouterV2 | function swapExactTokensForBNBSupportingFeeOnTransferTokens(uint256 amountIn, uint256 amountOutMin, address[] path, address to, uint256 deadline) returns() |
| 0xd67b571e | RouterV2 | function swapTokensForExactBNB(uint256 amountOut, uint256 amountInMax, address[] path, address to, uint256 deadline) returns(uint256[] amounts) |
| 0x1e3dd18b | FactoryV2 | function allPairs(uint256 ) view returns(address) |
| 0x574f2ba3 | FactoryV2 | function allPairsLength() view returns(uint256) |
| 0x017e7e58 | FactoryV2 | function feeTo() view returns(address) |
| 0x094b7415 | FactoryV2 | function feeToSetter() view returns(address) |
| 0xe6a43905 | FactoryV2 | function getPair(address , address ) view returns(address) |
| 0xc9c65396 | FactoryV2 | function createPair(address tokenA, address tokenB) returns(address pair) |
| 0xf46901ed | FactoryV2 | function setFeeTo(address _feeTo) returns() |
| 0xa2e74af6 | FactoryV2 | function setFeeToSetter(address _feeToSetter) returns() |
UniswapV3 / PancakeSwapV3 4Byte Signatures
| 4Byte | Type | Function |
|---|---|---|
| 0xc45a0155 | RouterV3 | function factory() view returns(address) |
| 0x4aa4a4fc | RouterV3 | function WETH9() view returns(address) |
| 0xd5f39488 | RouterV3 | function deployer() view returns(address) |
| 0xc04b8d59 | RouterV3 | function exactInput((bytes,address,uint256,uint256,uint256) params) payable returns(uint256 amountOut) |
| 0x414bf389 | RouterV3 | function exactInputSingle((address,address,uint24,address,uint256,uint256,uint256,uint160) params) payable returns(uint256 amountOut) |
| 0xf28c0498 | RouterV3 | function exactOutput((bytes,address,uint256,uint256,uint256) params) payable returns(uint256 amountIn) |
| 0xdb3e2198 | RouterV3 | function exactOutputSingle((address,address,uint24,address,uint256,uint256,uint256,uint160) params) payable returns(uint256 amountIn) |
| 0xac9650d8 | RouterV3 | function multicall(bytes[] data) returns(bytes[] results) |
| 0x23a69e75 | RouterV3 | function pancakeV3SwapCallback(int256 amount0Delta, int256 amount1Delta, bytes _data) returns() |
| 0x12210e8a | RouterV3 | function refundETH() payable returns() |
| 0xf3995c67 | RouterV3 | function selfPermit(address token, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) payable returns() |
| 0x4659a494 | RouterV3 | function selfPermitAllowed(address token, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) payable returns() |
| 0xa4a78f0c | RouterV3 | function selfPermitAllowedIfNecessary(address token, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) payable returns() |
| 0xc2e3140a | RouterV3 | function selfPermitIfNecessary(address token, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) payable returns() |
| 0xdf2ab5bb | RouterV3 | function sweepToken(address token, uint256 amountMinimum, address recipient) payable returns() |
| 0xe0e189a0 | RouterV3 | function sweepTokenWithFee(address token, uint256 amountMinimum, address recipient, uint256 feeBips, address feeRecipient) payable returns() |
| 0xfa461e33 | RouterV3 | function uniswapV3SwapCallback(int256 amount0Delta, int256 amount1Delta, bytes ) returns() |
| 0x49404b7c | RouterV3 | function unwrapWETH9(uint256 amountMinimum, address recipient) payable returns() |
| 0x9b2c0a37 | RouterV3 | function unwrapWETH9WithFee(uint256 amountMinimum, address recipient, uint256 feeBips, address feeRecipient) payable returns() |
| 0x22afcccb | FactoryV3 | function feeAmountTickSpacing(uint24 ) view returns(int24) |
| 0x88e8006d | FactoryV3 | function feeAmountTickSpacingExtraInfo(uint24 ) view returns(bool whitelistRequested, bool enabled) |
| 0x1698ee82 | FactoryV3 | function getPool(address , address , uint24 ) view returns(address) |
| 0x5e492ac8 | FactoryV3 | function lmPoolDeployer() view returns(address) |
| 0x8da5cb5b | FactoryV3 | function owner() view returns(address) |
| 0x3119049a | FactoryV3 | function poolDeployer() view returns(address) |
| 0x43db87da | FactoryV3 | function collectProtocol(address pool, address recipient, uint128 amount0Requested, uint128 amount1Requested) returns(uint128 amount0, uint128 amount1) |
| 0x89035730 | FactoryV3 | function parameters() view returns(address factory, address token0, address token1, uint24 fee, int24 tickSpacing) |
| 0xa1671295 | FactoryV3 | function createPool(address tokenA, address tokenB, uint24 fee) returns(address pool) |
| 0x8a7c195f | FactoryV3 | function enableFeeAmount(uint24 fee, int24 tickSpacing) returns() |
| 0x8ff38e80 | FactoryV3 | function setFeeAmountExtraInfo(uint24 fee, bool whitelistRequested, bool enabled) returns() |
| 0x7e8435e6 | FactoryV3 | function setFeeProtocol(address pool, uint32 feeProtocol0, uint32 feeProtocol1) returns() |
| 0x11ff5e8d | FactoryV3 | function setLmPool(address pool, address lmPool) returns() |
| 0x80d6a792 | FactoryV3 | function setLmPoolDeployer(address _lmPoolDeployer) returns() |
| 0x13af4035 | FactoryV3 | function setOwner(address _newOwner) returns() |
| 0xe4a86a99 | FactoryV3 | function setWhiteListAddress(address _address, bool _isWhiteList) returns() |
FAQ - Ethereum Signature Database
1. What is 4Byte database?
The 4byte database contains function signatures and mappings for event signatures, all offered free of license for search or scrapping. Developers can map bytes signatures results from searches back to their human-readable sources and versions
2. How many 4Byte signatures are there in the database?
There are currently +2,192,612 (and counting) signatures in the database.
3. Why there are some signatures can't decode?
Those signatures must be in our database to decode. We're analyzing EVM to update our database. Maybe those signatures can decode in the future.
4. Is this tool free?
Absolutely. This tool is one of our free tools. You can check more tools at CoinDetect Tools
TOS and Licensing
The data from this service is given free of any license or restrictions on how it may be used.
Usage of the API is also granted with the single restriction that your usage should not disrupt the service itself. If you wish to scrape this data, feel free, but please do so with limited concurrency.
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