DELETE

[Nestade]

DELETE

[1713962980]

1713962980

[1713962980]

1713962980

[1713962980]

1713962980

[Scheede]

Hi,

In this guide I'd like to show you how to do offline-transactions using MyEtherWallet.
By using this method your private-key won't won't leave the offline machine so this is the safest way of sending transactions without a hardware-wallet.

First of all something about your private-key/keystore-file/recovery-seed: Do NOT store this files on your computer which is connected to the internet! If you're getting infected my malware you may lose all of your coins/tokens linked to this private-key. The safest way would be just using your keystore-file on your offline computer to sign transactions and storing your private-key/recovery seed safely on paper. Your private-key and recovery-seed are unencrypted provide instant access to your wallet while the keystore-file is encrypted and requires an additional password.

Requirements:
- a computer which is connected to the internet
- a computer which isn't connected to the internet
- Your ETH public-key
- Your ETH private-key (Keystorefile should be preferred)


Installing MyEtherWallet locally [Do this on the offline computer]

Download the local version of MyEtherWallet from the official MyEtherWallet Github (etherwallet-vX.X.X.X.zip):
https://github.com/kvhnuke/etherwallet/releases

Move "etherwallet-vX.X.X.X.zip" to your offline computer (USB Stick, Smartphone, ...) and extract the content from the ZIP.

Open MyEtherWallet by double clicking 'index.html' - you may have to right-click it, then go to 'Open with' and select a browser; I'd recommend using Google Chrome - you may want to download it on your online machine and transfer it to the offline machine.

Making an offline transaction

STEP 1: [ONLINE] Go to the MyEtherWallet-Website and select the 'Send Offline'-tab (https://www.myetherwallet.com/#offline-transaction). If needed adjust your GWEI according to https://ethgasstation.info/ by clicking on 'Gas Price: X GWEI' in the upper right corner and adjusting the slider to your needs. Then enter the public-address of the sender account into the 'From Address' textbox and click 'Generate'.
Write down the contents of 'Gas Price' and 'Nonce'.



STEP 2: [OFFLINE] Open your local copy of MyEtherWallet, select the 'Send Offline'-tab and scroll down to 'Step 2: Generate Transaction (Offline Computer)'.

Enter the following information:
- To Address: Receiver-address
- Value / Amount to Send: Amount you want to send (it's also possible to send Tokens by clicking on 'ETH' on the right side of the textbox and selecting the respective Token in the dropdown-menu)
- Gas Limit: https://kb.myetherwallet.com/gas/what-is-gas-ethereum.html
- Gas Price: Value from STEP 1
- Nonce: Value from STEP 1
- Data: optional - leave empty if not needed



Now scroll down until you see 'How would you like to access your wallet?' and log in using your preferred authentication-method (I'd recommend using your Keystore-File!) and click 'Unlock'.



Click 'Generate Transaction'

STEP 3: [OFFLINE] You'll now see two textboxes - 'Raw Transaction' and 'Signed Transaction'. Copy the content from 'Signed Transaction' and transfer it to your online computer.



STEP 4: [ONLINE] Go back to the MyEtherWallet-Website and select the 'Send Offline'-tab (https://www.myetherwallet.com/#offline-transaction). Scroll down to 'Step 3: Send / Publish Transaction (Online Computer)', enter your signed transaction, click 'Send Transaction' and confirm it.




Congratulations, you're done

Sidenote: To check your balance just use https://ethplorer.io/ or https://etherscan.io/ or log in to MyEtherWallet just using your public-key (View only of couse).

If you have any questions please feel free to ask anytime.

Best regards,
Nestade

And another high-quality post from your side - thanks again!

Will merit you soon... keep up the good work!

[CoinEraser]

This is really a very good description and guide. Your contribution is worth saving it into my bookmark. Keep it up and you will certainly collect a lot of merit. I would like to give you more, but I'm now broke. 

[nullCoiner]

awesome guide, thank you for that great piece of work. maybe i should consider getting an offline PC at home now

[9jaflick]

This involves a little technicality, I have not really tried this out, but am willing to give it a shot, thanks for the piss

[Tankdestroyer]

Well, I'm not sure but it may be possible creating a second partition but it has to be isolated from the online-partition (Encryption?).

A USB will solve the problem at hand. Just make sure that the USB where the local copy of Myetherwallet will be stored would not be used and plugged into another computer unless one is certain that it is malware free. You can also follow this guide to create a second partition out of the current local disk that you have(if it is malware/virus free, it will do) and follow this tutorial if you want to encrypt the second partition that you will create.

[code]

if you have large sums-you can do so. the only difficulty with ethereum wallet-you never know what to choose the Commission to make the transaction take place. thanks for the instruction

[jcvadal98]

If you'd like to use TrueCrypt just make sure to use version 7.1a as 7.2 got no encryption-functionality anymore. And I agree, I'm sure they just received a NSL and had to stop their service or insert a backdoor for NSA and they chose the first option.

[zeze18]

Hi,

In this guide I'd like to show you how to do offline-transactions using MyEtherWallet.
By using this method your private-key won't won't leave the offline machine so this is the safest way of sending transactions without a hardware-wallet.

First of all something about your private-key/keystore-file/recovery-seed: Do NOT store this files on your computer which is connected to the internet! If you're getting infected my malware you may lose all of your coins/tokens linked to this private-key. The safest way would be just using your keystore-file on your offline computer to sign transactions and storing your private-key/recovery seed safely on paper. Your private-key and recovery-seed are unencrypted provide instant access to your wallet while the keystore-file is encrypted and requires an additional password.

Requirements:
- a computer which is connected to the internet
- a computer which isn't connected to the internet
- Your ETH public-key
- Your ETH private-key (Keystorefile should be preferred)


Installing MyEtherWallet locally [Do this on the offline computer]

Download the local version of MyEtherWallet from the official MyEtherWallet Github (etherwallet-vX.X.X.X.zip):
https://github.com/kvhnuke/etherwallet/releases

Move "etherwallet-vX.X.X.X.zip" to your offline computer (USB Stick, Smartphone, ...) and extract the content from the ZIP.

Open MyEtherWallet by double clicking 'index.html' - you may have to right-click it, then go to 'Open with' and select a browser; I'd recommend using Google Chrome - you may want to download it on your online machine and transfer it to the offline machine.

Making an offline transaction

STEP 1: [ONLINE] Go to the MyEtherWallet-Website and select the 'Send Offline'-tab (https://www.myetherwallet.com/#offline-transaction). If needed adjust your GWEI according to https://ethgasstation.info/ by clicking on 'Gas Price: X GWEI' in the upper right corner and adjusting the slider to your needs. Then enter the public-address of the sender account into the 'From Address' textbox and click 'Generate'.
Write down the contents of 'Gas Price' and 'Nonce'.



STEP 2: [OFFLINE] Open your local copy of MyEtherWallet, select the 'Send Offline'-tab and scroll down to 'Step 2: Generate Transaction (Offline Computer)'.

Enter the following information:
- To Address: Receiver-address
- Value / Amount to Send: Amount you want to send (it's also possible to send Tokens by clicking on 'ETH' on the right side of the textbox and selecting the respective Token in the dropdown-menu)
- Gas Limit: https://kb.myetherwallet.com/gas/what-is-gas-ethereum.html
- Gas Price: Value from STEP 1
- Nonce: Value from STEP 1
- Data: optional - leave empty if not needed



Now scroll down until you see 'How would you like to access your wallet?' and log in using your preferred authentication-method (I'd recommend using your Keystore-File!) and click 'Unlock'.



Click 'Generate Transaction'

STEP 3: [OFFLINE] You'll now see two textboxes - 'Raw Transaction' and 'Signed Transaction'. Copy the content from 'Signed Transaction' and transfer it to your online computer.



STEP 4: [ONLINE] Go back to the MyEtherWallet-Website and select the 'Send Offline'-tab (https://www.myetherwallet.com/#offline-transaction). Scroll down to 'Step 3: Send / Publish Transaction (Online Computer)', enter your signed transaction, click 'Send Transaction' and confirm it.




Congratulations, you're done

Sidenote: To check your balance just use https://ethplorer.io/ or https://etherscan.io/ or log in to MyEtherWallet just using your public-key (View only of couse).

If you have any questions please feel free to ask anytime.

Best regards,
Nestade

This is gonna be good but it's too complicated to update our wallet.
I'm okay with using MEW via google chrome MEW extension, it's very good and easy to use.
Every time you want to login, you just have to enter the password and you can view or send ETH from there.

[trumper]

Some tokens are not listed already when trying to choose that asset to send, can I add new token info when using it offline? I could not do it before.

[Heisenberg_Hunter]

All your guides are really helpful to the community but it gets wasted since it is being posted in a Mega Spam Board. Could you please move all your guides to the Beginners and Help Section so that it could be really helpful to the newbies who are coming here to seek knowledge?

P.S I have been meriting you constantly due to the immense work you put in your each guide! But Guides like these should never get buried in these Spams. :/

[bellamente]

Very useful information! Thank you.

I find phishing sites MyEtherWallet using the Metatask plugin. But this does not always help.

Your solution is more universal

[Mix_Fix]

Great guide for everyone, who want to secure assets. I used to send offline transactions before I bought Ledger Nano S. And there weren't any problems!

[Mosesayo4450]

Thanks this is really a good post, really helps a lot.

[bitdealer91]

In fact, this is a very useful guide, because recently I often meet messages that wallets have been hacked. An offline wallet is the best way to control your money.

[RDNX]

Actually, I've left MEW and have moved to another service, Mycrypto.
But this is a very good tutorial, maybe later I will try it. Thank you for sharing this tutorial.

[easytipz]

Thanks for guide. This is the first time I heard about Offline feature of MyEtherWallet.
Last time I use Ethereum Wallet (download from ethereum.org) but the problem is that it does not support ERC-20 tokens.

[v_Harley]

Just buy the ledger or the ledger trozer. These two hardware wallets also keep the private key secure, much safer than the web.

[VolkoB]

Made a translation of your topic for Russian-speaking users. Very useful information! My one merit for you 

https://bitcointalk.org/index.php?topic=5043348.msg46499807#msg46499807

[ivannalog814]

A good way for transactions ! Thank you for the post, it is very productive and contains information that allows you to protect your wallet from scams.