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How to check installed web3 version with command line terminal?

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  • 1
    This message has nothing to do with web3, it's telling you to upgrade npm itself. Commented Jun 12, 2018 at 6:03
  • the message suggests to update your npm no web3 Commented Jun 12, 2018 at 6:03

5 Answers 5

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From a command line: npm ls web3 or npm list web3.

By the way, this message has nothing to do with web3, it's telling you to upgrade npm itself.

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  • thanx @goodvibration my problem solved upgrading npm Commented Aug 3, 2018 at 18:53
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npm install web3 installs web3.js, which has a version command documented here: https://github.com/ethereum/wiki/wiki/JavaScript-API#web3versionapi

var version = web3.version.api; console.log(version); // "0.2.0" 
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  • 2
    Or just npm ls web3 Commented Jun 12, 2018 at 6:03
  • shows different version than package.json Commented Feb 28, 2019 at 22:41
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Update for 2020:

It's just Web3.version

E.g.

console.log(Web3.version); 
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You can check your node module versions using:

npm view <module> version 

So just type on your terminal:

npm view web3 version 
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You may by the following:

Step-I: on your console write "node" and then enter

~/../currentDir> node 

Then:

>var Web3 = require("web3"); >console.log(Web3.version); 

Output:

'1.2.11' //version 

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