Recently I came across my old keystore file from the original Ethereum Wallet that I used back in 2017. Unfortunately I cannot find the private key or password for that wallet anymore, big problem of not writing it down on a piece of paper and save that... The issue is that I am hoping to recover the private key from my keystore file with coding or another way. I have been trying to look it up but couldn't find something useful so far. Is there anyone who knows a way to recover the private key from your keystore file without the password?

  • BTW, it's 'keystore', not 'keystone'. Commented Jan 5, 2021 at 15:55
  • It cannot be done without password, you can try to hack the password it could be easy if u know your password pattern (maybe mask attack or guess itpro.co.uk/security/34616/…) however it will probably take a lot of time and effort
    – Majd TL
    Commented Jan 5, 2021 at 16:39

1 Answer 1


Private key recovery instructions:

  1. Download and install NodeJS
  2. Create a new folder, and:
    • Copy your key-store file into this folder
    • Create a new file called run.js in this folder
  3. Open a command-line terminal in this folder, and run:
    • npm install keythereum
    • node run.js

Contents of run.js:

const fs = require("fs");
const keythereum = require("keythereum");

const KEYSTORE = "KeystoreFileName";
const PASSWORD = "YourPassword";

const keyObject = JSON.parse(fs.readFileSync(KEYSTORE, {encoding: "utf8"}));
const privateKey = keythereum.recover(PASSWORD, keyObject).toString("hex");
console.log(`0x${keyObject.address}: 0x${privateKey}`);

In the code above, replace:

  • The string "KeystoreFileName" with the key-store file name
  • The string "YourPassword" with your password
  • Thanks for your comment! Only(and big) issue is that I also do not know my password anymore so that is why I am trying to find a way to access my wallet with only the keystore file.
    – Swinks95
    Commented Jan 5, 2021 at 20:05
  • @Swinks95: If you have any vague idea about your password, then you can try several options using the script above, until "0x" + keyObject.address === YourWalletAddress. Commented Jan 5, 2021 at 20:10
  • In which environment do I have to do all this? I normally work with python in juptyer but I am not familiair with NodeJS
    – Swinks95
    Commented Jan 5, 2021 at 21:00
  • @Swinks95: The above code is in NodeJS, as explicitly stated in the answer. But assuming that you do have a few combinations in mind that you can iterate on, it shouldn't be much of a problem in Javascript. Commented Jan 5, 2021 at 21:02
  • thanks for sharing your inputs here. Sorry for reaching you out of the blue. I was wondering if you could assist me with this. I am kind of not finding any information anywhere else. ethereum.stackexchange.com/questions/118130/… Thanks a ton in advance. Commented Jan 6, 2022 at 22:00

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