I have web3.js working on my Windows machine, I need to access web3 library called coder.js, according to this answer the location of that library is web3/lib/solidity/coder.js

But I cannot find these libraries, does anyone know what is the location on web3 libraries on Windows 7?

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    You are checking in the web3 node module only right. I have downloaded web3 module and checked it is present there. Try reinstalling the node module.
    – joifsi
    Commented Jun 2, 2017 at 8:00
  • Yes checking in node module only I have found one file there named "coder.js" but it was actually a HTML file that means the file is "coder.js.html", but cant find the js file Commented Jun 2, 2017 at 9:18
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    What I see is a js file. The link to the js file of node module in github is github.com/ethereum/web3.js/blob/develop/lib/solidity/coder.js Try removing the node module and reinstalling it.
    – joifsi
    Commented Jun 2, 2017 at 9:55
  • yes I too got that file on git hub but cant find it on my machine, I will try reinstalling it hopefully it works Commented Jun 2, 2017 at 10:33
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    If you have installed web3 using npm, then you have a folder node_modules, inside that folder there's the web3 folder.
    – Ismael
    Commented Jun 2, 2017 at 21:10

1 Answer 1


Answering my own question there are multiple instances of the file at locations









And there are some more, But I think the correct one to use is first in the list.

we can use this coder.js to parse the transaction log. Ref:- How do I parse the transaction receipt log with web3.js?

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