Save your Keystore File (UTC / JSON)

DOWNLOAD Keystore File (UTC / JSON)

Keep it safe · Make a backup · Don't share it with anyone · Don't lose it · It cannot be recovered if you lose it.

I understand. Continue.

Not Downloading a File?

  • Try using Google Chrome
  • Right click & save file as. Filename:
  • {{encFileName}}

Don't open this file on your computer

  • Use it to unlock your wallet via MyEtherWallet (or Mist, Geth, Parity & other wallet clients.)

Guides & FAQ

+-

Unlock your wallet to see your address

DOWNLOAD
Print Paper Wallet
Your Address:
Private Key (unencrypted)

Sign Message or Verify Message

Sign Message
Signature
Signature
Verify Message

You arrived via a link that has the address, amount, gas or data fields filled in for you. You can change any information before sending. Unlock your wallet to get started.

+-

Send Ether & Tokens

Send Entire Balance

+ Advanced: Add Data

A message regarding {{tx.to}}

{{customGasMsg}}

Warning! You do not have enough funds to complete this swap.

Please add more funds to your wallet or access a different wallet.

MyEtherWallet is a free, open-source service dedicated to your privacy and security. The more donations we receive, the more time we spend creating new features, listening to your feedback, and giving you what you want. We are just two people trying to change the world. Help us?

DONATE
THANK YOU!!!
Advanced Users Only.
Current Rates

ETH = {{bity.curRate.ETHBTC*priceTicker.ETHBTC | number: 6}} BTC

ETH = {{bity.curRate.ETHREP*priceTicker.ETHREP | number: 6}} REP

BTC = {{bity.curRate.BTCETH*priceTicker.BTCETH | number: 6}} ETH

BTC = {{bity.curRate.BTCREP*priceTicker.BTCREP | number: 6}} REP

Your Information

{{swapOrder.fromVal}} {{swapOrder.fromCoin}}

Amount to send

{{swapOrder.toVal}} {{swapOrder.toCoin}}

Amount to receive

{{swapOrder.swapRate}} {{swapOrder.swapPair}}

Your rate

Start Swap
Your Information

{{orderResult.reference}}

Your reference number

{{orderResult.progress.timeRemaining}}

Time remaining to send

Time elapsed since sent

{{orderResult.output.amount}} {{orderResult.output.currency}}

Amount to receive

{{swapOrder.swapRate}} {{swapOrder.swapPair}}

Your rate

1

Order Initiated

2

Waiting for your {{orderResult.input.currency}}...

3

{{orderResult.input.currency}} Received!

4

Sending your {{orderResult.output.currency}}
Waiting for 10 confirmations... Waiting for 1 confirmation...

5

Order Complete

Please send {{orderResult.input.amount}} {{orderResult.input.currency}} to address
{{orderResult.payment_address}}

+-
Unlock your wallet to send ETH or Tokens directly from this page.
Warning! You are not connected to an ETH node.
Please use the node switcher in the top-right corner to switch to an ETH node. We do not support swapping ETC or Testnet ETH.

Send Entire Balance

+ Advanced: Add Data

A message regarding {{tx.to}}

{{customGasMsg}}

Warning! You do not have enough funds to complete this swap.

Please add more funds to your wallet or access a different wallet.

MyEtherWallet is a free, open-source service dedicated to your privacy and security. The more donations we receive, the more time we spend creating new features, listening to your feedback, and giving you what you want. We are just two people trying to change the world. Help us?

DONATE
THANK YOU!!!
Advanced Users Only.

Orders that take too long will have to be processed manually & and may delay the amount of time it takes to receive your coins.
Please use the recommended TX fees seen here.


Issue with your Swap? Contact support.

If the link doesn't work, copy & paste the following:

Generate & Send Offline Transaction

Step 1: Generate Information (Online Computer)

GENERATE INFORMATION

Step 3: Send / Publish Transaction

Paste the signed transaction from Step 2

SEND TRANSACTION

Interact with Contract or Deploy Contract

Contract Address

or

Select Existing Contract

ABI / JSON Interface


Read / Write Contract

{{ contract.address }}

You probably want to change the address to your Mist Mutlisig Address....

  1. Generate EOS Key-pair
  2. Register / Map your EOS Key
    • Select register
    • Enter your EOS Public Key <--- CAREFUL! EOS PUBLIC KEY!
    • Unlock wallet
    • Amount to Send: 0 · Gas Limit: at least 90000
  3. Fund EOS Contract on Send Page
    • Go to Send Ether & Tokens Page
    • Unlock same wallet you are unlocking here.
    • Send Amount you want to Contribute to 0xd0a6E6C54DbC68Db5db3A091B171A77407Ff7ccf
    • Gas Limit: at least 90000
  4. Claim EOS Tokens
    • Select claimAll.
    • Unlock wallet
    • Amount to Send: 0 · Gas Limit: at least 90000

TRUE FALSE

Byte Code:

Gas:

Raw Transaction

Signed Transaction


ENS

The Ethereum Name Service is a distributed, open, and extensible naming system based on the Ethereum blockchain. Once you have a name, you can tell your friends to send ETH to mewtopia.eth instead of 0x7cB57B5A97eAbe942......


The ENS is only available on the ETH and Ropsten (Testnet) chains. You are currently on the {{ajaxReq.type}} chain.
Please use the node switcher in the upper right corner to select "ETH" or "Ropsten".

What is the process like?

+- 1. Preparation
  • Decide which account you wish to own the name & ensure you have multiple backups of that account.
  • Decide the maximum amount of ETH you are willing to pay for the name (your Bid Amount). Ensure that account has enough to cover your bid + 0.01 ETH for gas.
+- 2. Start an Auction / Place a Bid
  • Bidding period lasts 3 days (72 hours).
  • You will enter the name, Actual Bid Amount, Bid Mask, which is protected by a Secret Phrase.
  • This places your bid, but this information is kept secret until you reveal it.
+- 3. Reveal your Bid
  • If you do not reveal your bid, you will not be refunded.
  • Reveal Period lasts 2 days (48 hours).
  • You will unlock your account, enter the Bid Amount, and the Secret Phrase.
  • In the event that two parties bid exactly the same amount, the first bid revealed will win.
+- 4. Finalize the Auction
  • Once the auction has ended (after 5 days / 120 hours), the winner needs to finalize the auction in order to claim their new name.
  • The winner will be refunded the difference between their bid and the next-highest bid. If you are the only bidder, you will refunded all but 0.01 ETH.
+- More Information

Help Center: ENS  ·  Debugging a [BAD INSTRUCTION] Reveal

Please try the above before relying on support for reveal issues as we are severely backlogged on support tickets. We're so sorry. :(



{{objENS.name}}.eth is not yet available.

{{objENS.name}}.eth not available. (Forbidden)

Auction Open On

{{objENS.allowedTime.toString()}}

Auction Opens In

{{objENS.timeRemaining}}



An auction has been started for {{objENS.name}}.eth.

{{objENS.name}}.eth is available!

Reveal Bids On

{{getRevealTime().toString()}}

{{objENS.timeRemainingReveal}}

Auction Closes On

{{objENS.registrationDate.toString()}}

{{objENS.timeRemaining}}



It's time to reveal the bids for {{objENS.name}}.eth.
Current highest bid is {{objENS.highestBid}} ETH.

Auction Closes On

{{objENS.registrationDate.toString()}}

{{objENS.timeRemaining}}



{{objENS.name}}.eth is already owned:

Name: {{objENS.name}}.eth
Labelhash ({{objENS.name}}): {{objENS.nameSHA3}}
Namehash ({{objENS.name}}.eth): {{objENS.namehash}}
Owner: {{objENS.owner}}
Highest Bidder (Deed Owner): {{objENS.deedOwner}}
Resolved Address: {{objENS.resolvedAddress}}
+-

Do you want {{objENS.name}}.eth? Unlock your Wallet to Start an Auction Do you want {{objENS.name}}.eth? Unlock your Wallet to Place a Bid Did you bid on {{objENS.name}}.eth? You must reveal your bid now. Is that your address? Finalize the auction to claim your new name. Is that your address? It is ready to set up a resolver.

Place a Bid Start an Auction Reveal your Bid

-- 👆 enter automagically 👆 -- or -- 👇 enter manually 👇 --
Actual Bid Amount

You must remember this to claim your name later.

Bid Mask

This is the amount of ETH you send when placing your bid. It has no bearing on the *actual* amount you bid (above). It is simply to hide your real bid amount. It must be >= to your actual bid.

Secret Phrase

You must remember this to claim your name later (feel free to change this)

If you haven't done so already, please screenshot & save the below information.

Please check your address on https://etherscan.io/ to ensure your BID TX is on the blockchain, without errors.

Name{{objENS.name}}.eth
Actual Bid Amount{{objENS.bidValue}} {{ajaxReq.type}}
Bid Mask{{objENS.dValue}} {{ajaxReq.type}}
Secret Phrase{{objENS.secret}}
From Account{{wallet.getChecksumAddressString()}}
⚠ Reveal Date ⚠{{getRevealTime().toString()}}
Auction Ends{{objENS.registrationDate.toString()}}

Copy and save this:

Click your TX hash to see if you successfully revealed your {{objENS.bidValue}} bid for {{objENS.name}}.eth.

Please return on {{objENS.registrationDate.toString()}} to finalize the auction and see if you won!




Finalizing this name assigns the ENS name to the winning bidder. The winner will be refunded the difference between their bid and the next-highest bid. If you are the only bidder, you will refunded all but 0.01 ETH. Any non-winners will also be refunded.


This account is not the owner of {{objENS.name}}.eth. Please unlock the Owner Account in order to resolve.
Name: {{objENS.name}}.eth
Labelhash ({{objENS.name}}): {{objENS.nameSHA3}}
Namehash ({{objENS.name}}.eth): {{objENS.namehash}}
Owner: {{objENS.owner}}
Highest Bidder (Deed Owner): {{objENS.deedOwner}}
Resolved Address: {{objENS.resolvedAddress}}
Enter the address you would like this name to resolve to:

Set the Resolver for your Name

  1. Go to the contracts tab.
  2. Choose ENS - Registry: 0x314159265dD8dbb310642f98f50C066173C1259b. Click "Access".
  3. Select setResolver.
  4. Enter the Namehash of your name under "node (bytes32)".
    • node (bytes32): {{objENS.namehash}}
  5. Enter the Public Resolver Address under "resolver (address)".
    • resolver (address): 0x5FfC014343cd971B7eb70732021E26C35B744cc4
  6. Unlock the owner's account.
  7. Click WRITE.
  8. Generate and send this transaction – leave "Amount to Send" as 0
  9. TX should look like this.

Set the Address That your Name will Resolve To

  1. Go to the contracts tab.
  2. Choose ENS-Public Resolver: 0x5FfC014343cd971B7eb70732021E26C35B744cc4. Click "Access".
  3. Select setAddr.
  4. Enter the Namehash of your name under "node (bytes32)".
    • node (bytes32): {{objENS.namehash}}
  5. Enter the Address you would like to resolve to under "addr (address)".
    • addr (address): {{newResolvedAddress}}
  6. Unlock the owner's account.
  7. Click WRITE.
  8. Generate and send this transaction – leave "Amount to Send" as 0
  9. TX should look like this.
+-

View Wallet Details

This page allows you to download different versions of private keys and re-print your paper wallet. You may want to do this in order to [import your account into Geth/Mist](http://ethereum.stackexchange.com/questions/465/how-to-import-a-plain-private-key-into-geth/). If you want to check your balance, we recommend using a blockchain explorer like etherscan.io.

DOWNLOAD
Print Paper Wallet
Your Address:
Private Key (unencrypted)

Sign Message or Verify Message

Sign Message
Signature
Signature
Verify Message

Check TX Status

Transaction Found

{{ tx.hash }}

Transaction Not Found

Pending Transaction Found

Transaction Details


TX Hash {{ txInfo.hash }}
From Address {{ txInfo.from }}
To Address {{ txInfo.to }}
Amount {{ txInfo.valueStr }}
Nonce {{ txInfo.nonce }}
Gas Limit {{ txInfo.gasLimit }}
Gas Price {{ txInfo.gasPrice.gwei }} GWEI ({{ txInfo.gasPrice.wei }} WEI)
Data {{ txInfo.data }}


Cancel or Replace Transaction

+-

Unlock your wallet to replace your transaction. (But, please be careful)

Send Entire Balance

+ Advanced: Add Data

A message regarding {{tx.to}}

{{customGasMsg}}

Warning! You do not have enough funds to complete this swap.

Please add more funds to your wallet or access a different wallet.

MyEtherWallet is a free, open-source service dedicated to your privacy and security. The more donations we receive, the more time we spend creating new features, listening to your feedback, and giving you what you want. We are just two people trying to change the world. Help us?

DONATE
THANK YOU!!!
Advanced Users Only.
Please unlock the address {{ txInfo.from }}. Only this address can replace a TX.

Help

This page is slowly being deprecated. Please check out our more up-to-date and searchable Help Center.

+-

Some reminders

+-

    • Keystore/JSON File (Recommended · Encrypted · Mist/Geth Format): This Keystore / JSON file matches the format used by Mist & Geth so you can easily import it in the future. It is the recommended file to download and back up.
    • JSON File (unencrypted): This is the unencrypted, JSON format of your private key. This means you do not need the password but anyone who finds your JSON can access your wallet & Ether without the password.
    • Private Key (unencrypted): This is the unencrypted text version of your private key, meaning no password is necessary. If someone were to find your unencrypted private key, they could access your wallet without a password. For this reason, encrypted versions are typically recommended.
  1. Place your address, versions of the private key, and the PDF version of your paper wallet in a folder. Save this on your computer and a USB drive.
  2. Print the wallet if you have a printer. Otherwise, write down your private and address on a piece of paper. Store this as a secure location, separate from your computer and the USB drive.
  3. Keep in mind, you must prevent loss of the keys and password due to loss or failure of you hard drive failure, or USB drive, or piece of paper. You also must keep in mind physical loss / damage of an entire area (think fire or flood).
+-

2b. How do I safely / offline / cold storage with MyEtherWallet?

  1. Go to our github: [https://github.com/kvhnuke/etherwallet/tree/gh-pages](https://github.com/kvhnuke/etherwallet/tree/gh-pages).
  2. Click download zip in the upper right.
  3. Move zip to an airgapped computer.
  4. Unzip it and double-click index.html.
  5. Generate a wallet with a strong password.
  6. Save the address. Save versions of the private key. Save the password if you might not remember it forever.
  7. Store these papers / USBs in multiple physically separate locations.
  8. Go to the "View Wallet Info" page and type in your private key / password to ensure they are correct and access your wallet. Check that the address you wrote down is the same.

Keep in mind, you must prevent loss of the keys and password due to loss or failure of you hard drive failure, or USB drive, or piece of paper. You also must keep in mind physical loss / damage of an entire area (think fire or flood).

+-

3. How do I verify I have access to my new wallet?

**Before you send any Ether to your new wallet**, you should ensure you have access to it.

  1. Navigate to the "View Wallet Info" page.
  2. Select your wallet file -or- your private key and unlock your wallet.
  3. If the wallet is encrypted, a text box will automatically appear. Enter the password.
  4. Click the "Unlock Wallet" button.
  5. Your wallet information should show up. Find you account address, next to a colorful, circular icon. This icon visually represents your address. Be certain that the address is the address you have saved to your text document and is on your paper wallet.
  6. If you are planning on holding a large amount of ETH, we recommend that send a small amount of ETH from new wallet before depositting a large amount. Send .001 ETH to your new wallet, access that wallet, send that .001 ETH to another address, and ensure everything works smoothly.
+-

4. How do I send Ether from one wallet to another?

If you plan to move a large amount of ether, you should test sending a small amount to your wallet first to ensure everything goes as planned.

  1. Navigate to the "Send Ether" page.
  2. Select your wallet file -or- your private key and unlock your wallet.
  3. If the wallet is encrypted, a text box will automatically appear. Enter the password.
  4. Click the "Unlock Wallet" button.
  5. Enter the address you would like to send to in the "To Address:" field.
  6. Enter the amount you would like to send. You can also click the "Transfer total available balance" link if you would like the transfer the entire balance.
  7. Click "Generate Transaction".
  8. A couple more fields will appear. This is your browser generating the transaction.
  9. Click the blue "Send Transaction" button below that.
  10. A pop-up will appear. Verify that the amount and the address you are sending to are correct. Then click "Yes, I am sure! Make transaction." button.
  11. The transaction will be submitted. The TX Hash will display. You can click that TX Hash to see it on the blockchain.
+-

5. How do I run MyEtherWallet.com offline/locally?

You can run MyEtherWallet.com on your computer instead of from the GitHub servers. You can generatea a wallet completely offline and send transactions from the "Offline Transaction" page.

  1. Go to https://github.com/kvhnuke/etherwallet/releases/latest:
  2. Click the file below that looks like dist-vX.X.X.zip
  3. Move zip to an airgapped computer.
  4. Unzip it and double-click `index.html`.
  5. MyEtherWallet.com is now running entirely on your computer.

In case you are not familiar, you need to keep the entire folder in order to run the website, not just index.html. Don't touch or move anything around in the folder. If you are storing a backup of the MyEtherWallet repo for the future, we recommend just storing the ZIP so you can be sure the folder contents stay intact.

As we are constantly updating MyEtherWallet.com, we recommend you periodically update your saved version of the repo.

+-

6) I cannot connect to my custom node. What do I do?

  • Verify the URL you entered is correct.
  • Verify the port you entered is correct.
  • Verify that if you are connecting to an http:// node you are running MyEtherWallet locally (NOT over https://).
  • Verify geth is running with geth --rpc --rpccorsdomain "null" --keystore "dont_put_secret_files_here_ever" or parity is running with parity --rpccorsdomain "*" --keys-path "dont_put_secret_files_here_ever"
  • Verify your node is actually up and running.
  • Try removing the node and adding it again.
+-

7. How do I send Tokens & add custom tokens?

[Check out Ethplorer.io](https://ethplorer.io/) if you need help finding symbol / decimal.

  1. Navigate to the "Send Token" page.
  2. Unlock your wallet.
  3. Enter the address you would like to send to in the "To Address:" field.
  4. Enter the amount you would like to send.
  5. Select which token you would like to send.
  6. If you do not see the token listed:
    1. Click "Custom".
    2. Enter the address, name, and decimals of the token. These are provided by the developers of the token and are also needed when you "Add a Watch Token" to Mist.
    3. Click "Save".
    4. You can now send that token as well as see it's balance in the sidebar.
  7. Click "Generate Transaction".
  8. A couple more fields will appear. This is your browser generating the transaction.
  9. Click the blue "Send Transaction" button below that.
  10. A pop-up will appear. Verify that the amount and the address you are sending to are correct. Then click "Yes, I am sure! Make transaction." button.
  11. The transaction will be submitted. The TX Hash will display. You can click that TX Hash to see it on the blockchain.
+-

8. What happens if your site goes down?

MyEtherWallet is not a web wallet. You don't have a login and nothing ever gets saved to our servers. It is simply an interface that allows you interact with the blockchain.

If MyEtherWallet.com goes down, you would have to find another way (like geth or Ethereum Wallet / Mist) to do what we are doing. But you wouldn't have to "get" your Ether out of MyEtherWallet because it's not in MyEtherWallet. It's in whatever wallet your generated via our site.

You can import your unencrypted private key and your Geth/Mist Format (encrypted) files directly into geth / Ethereum Wallet / Mist very easily now. See question #10 below.

In addition, the likelihood of us taking MyEtherWallet down is slim to none. It costs us almost nothing to maintain as we aren't storing any information. If we do take the domain down, it still is, and always will be, publicly available at https://github.com/kvhnuke/etherwallet. You can download the ZIP there and run it locally.

+-

9. Is using the send transaction offline?

No, the send transaction page is not offline. It needs the internet in order to get the current gas price, nonce of your account, and broadcast the transaction (aka "send"). However, it only sends the signed transaction. Your private key safely stays with you. We also now provide an "Offline Transaction" page so that you can ensure your private keys are on an offline/airgapped computer at all times.

+-

10. How do I make an offline transaction?

  1. Navigate to the "Offline Transaction" page via your online computer.
  2. Enter the "From Address". Please note, this is the address you are sending FROM, not TO. This generates the nonce and gas price.
  3. Move to your offline computer. Enter the "TO ADDRESS" and the "AMOUNT" you wish to send.
  4. Enter the "GAS PRICE" as it was displayed to you on your online computer in step #1.
  5. Enter the "NONCE" as it was displayed to you on your online computer in step #1.
  6. The "GAS LIMIT" has a default value of 21000. This will cover a standard transaction. If you are sending to a contract or are including additional data with your transaction, you will need to increase the gas limit. Any excess gas will be returned to you.
  7. If you wish, enter some data. If you enter data, you will need to include more than the 21000 default gas limit. All data is in HEX format.
  8. Select your wallet file -or- your private key and unlock your wallet.
  9. Press the "GENERATE SIGNED TRANSACTION" button.
  10. The data field below this button will populate with your signed transaction. Copy this and move it back to your online computer.
  11. On your online computer, paste the signed transaction into the text field in step #3 and click "SEND Ether". This will broadcast your transaction.
+-

12. How do I import a wallet created with MyEtherWallet into geth / Ethereum Wallet / Mist?

Using an Geth/Mist JSON file from MyEtherWallet v2+....

  1. Go to the "View Wallet Info" page.
  2. Unlock your wallet using your **encrypted** private key or JSON file.
  3. Find the "Download JSON file - Geth/Mist Format (encrypted)" section. Press the "Download" button below that. You now have your keystore file.
  4. Open the Ethereum Wallet application.
  5. In the menu bar, go "Accounts" -> "Backup" -> "Accounts"
  6. This will open your keystore folder. Copy the file you just downloaded (UTC--2016-04-14........) into that keystore folder.
  7. Your account should show up immediately under "Accounts."

Using your unencrypted private key...

  1. If you do not already have your unencrypted private key, navigate to the "View Wallet Details" page.
  2. Select your wallet file -or- enter/paste your private key to unlock your wallet.
  3. Copy Your Private Key (unencrypted).
  4. If you are on a Mac:
    • Open Text Edit and paste this private key.
    • Go to the menu bar and click "Format" -> "Make Plain Text".
    • Save this file to your desktop as nothing_special_delete_me.txt. Make sure it says "UTF-8" and "If no extension is provided use .txt" in the save dialog.
    • Open terminal and run the following command: geth account import ~/Desktop/nothing_special_delete_me.txt
    • This will prompt you to make a new password. This is the password you will use in geth / Ethereum Wallet / Mist whenever you send a transaction, so don't forget it.
    • After successful import, delete nothing_special_delete_me.txt
    • The next time you open the Ethereum Wallet application, your account will be listed under "Accounts".
  5. If you are on a PC:
    • Open Notepad & paste the private key
    • Save the file as nothing_special_delete_me.txt at C:\
    • Run the command, geth account import C:\nothing_special_delete_me.txt
    • This will prompt you to make a new password. This is the password you will use in geth / Ethereum Wallet / Mist whenever you send a transaction, so don't forget it.
    • After successful import, delete nothing_special_delete_me.txt
    • The next time you open the Ethereum Wallet application, your account will be listed under "Accounts".
+-

13. What does "Gas Limit Too Low" Mean?

Most likely, this means you are attempting to send Ether to a contract. Sending to a contract requires a bit more data and therefore a bit more gas. On the "Send Ether" page, click the "+ Advanced: Add More Gas or Data" button below the amount field. This will display two additional fields that you can use to increase the gas above the default 21000, or add data to your transaction.

+-

14. Some sites randomize (seed) the private key generation via mouse movements. MyEtherWallet.com doesn't do this. Is the random number generation for MyEtherWallet safe?

While the mouse moving thing is clever and we understand why people like it, the reality is window.crypto ensures more entropy than your mouse movements. The mouse movements aren't unsafe, it's just that we (and tons of other crypto experments) believe in window.crypto. In addition, MyEtherWallet.com can be used on touch devices. Here's a conversation between an angry redditor and Vitalik Buterin regarding mouse movements v. window.crypto and here is the the window.crypto w3 spec.

+-

15. Why hasn't the wallet I just created show up in the blockchain explorer? (ie: etherchain, etherscan)

Addresses will only show up in a blockchain explorer once the account has activity on it—for example, once you have transferred some Ether to it.

+-

16. How do I check the balance of my account?

You can use a blockchain explorer like etherscan.io. Paste your address into the search bar and it will pull up your address and transaction history. For example, here's what our donation account looks like on etherscan.io

+-

17. Why isn't my balance showing up when I unlock my wallet?

This is most likely due to the fact that you are behind a firewall. The API that we use to get the balance and convert said balance is often blocked by firewalls for whatever reason. You will still be able to send transactions, you just need to use a different method to see said balance, like etherscan.io

+-

18. Where is my geth wallet file?

  • Mac: ~/Library/Ethereum/keystore
  • Linux: ~/.ethereum/keystore
  • Windows: %APPDATA%/Ethereum/keystore
+-

19. Where is my Mist wallet file?

Mist files are typically found in the file locations above, but it's much easier to open Mist, select "Accounts" in the top bar, select "Backup", and select "Accounts". This will open the folder where your files are stored.

+-

20. Where is my pre-sale wallet file?

Wherever you saved it. ;) It also was emailed to you, so check there. Look for the file called "ethereum_wallet_backup.json" and select that file. This wallet file will be encrypted with a password that you created during the purchase of the pre-sale.

+-

21. Couldn't everybody put in random private keys, look for a balance, and send to their own address?

Short version: yes, but finding an account with a balance would take longer than the universe...so...no.

Long ELI5 Version: So Ethereum is based on Public Key Cryptography, specifically Elliptic curve cryptography which is very widely used, not just in Ethereum. Most servers are protected via ECC. Bitcoin uses the same, as well as SSH and TLS and a lot of other stuff. The Ethereum keys specifically are 256-bit keys, which are stronger than 128-bit and 192-bit, which are also widely used and still considered secure by experts.

In this you have a private key and a public key. The private key can derive the public key, but the public key cannot be turned back into the private key. The fact that the internet and the world’s secrets are using this cryptography means that if there is a way to go from public key to private key, your lost ETH is the least of everyone’s problems.

Now, that said, YES if someone else has your private key then they can indeed send ETH from your account. Just like if someone has your password to your email, they can read and send your email, or the password to your bank account, they could make transfers. You could download the Keystore version of your private key which is the private key that is encrypted with a password. This is like having a password that is also protected by another password.

And YES, in theory you could just type in a string of 64 hexadecimal characters until you got one that matched. In fact, smart people could write a program to very quickly check random private keys. This is known as "brute-forcing" or "mining" private keys. People have thought about this long and hard. With a few very high end servers, they may be able to check 1M+ keys / second. However, even checking that many per second would not yield access to make the cost of running those servers even close to worthwhile - it is more likely you, and your great-grandchildren, will die before getting a match.

If you know anything about Bitcoin, this will put it in perspective: *To illustrate how unlikely this is: suppose every satoshi of every bitcoin ever to be generated was sent to its own unique private keys. The probability that among those keys there could be two that would correspond to the same address is roughly one in 100 quintillion.*

If you want something a bit more technical: *These numbers have nothing to do with the technology of the devices; they are the maximums that thermodynamics will allow. And they strongly imply that brute-force attacks against 256-bit keys will be infeasible until computers are built from something other than matter and occupy something other than space.*

Of course, this all assumes that keys are generated in a truly random way & with sufficient entropy. The keys generated here meet that criteria, as do Jaxx and Mist/geth. The Ethereum wallets are all pretty good. Keys generated by brainwallets do not, as a person's brain is not capable of creating a truly random seed. There have been a number of other issues regarding lack of entropy or seeds not being generated in a truly random way in Bitcoin-land, but that's a separate issue that can wait for another day.


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Security

If one of your first questions is "Why should I trust these people?", that is a good thing. Hopefully the following will help ease your fears.

  • We've been up and running since August 2015. If you search for "myetherwallet" on reddit, you can see numerous people who use us with great success.
  • We aren't going to take your money or steal your private key(s). There is no malicious code on this site. In fact the "GENERATE WALLET" pages are completely client-side. That means that all the code is executed on ** your computer** and it is never saved and transmitted anywhere.
  • Check the URL -- This site is being served through GitHub and you can see the source code here: https://github.com/kvhnuke/etherwallet/tree/gh-pages to the domains: http://kvhnuke.github.io/etherwallet/ and https://www.myetherwallet.com. You can verify it's hosted at GitHub by using http://viewdns.info/dnsrecord/?domain=myetherwallet.com - last two A record IPs are owned by GitHub for their custom domain hosting.
  • For generating wallets, you can download the source code. See #5 above.
  • Do a test run and check and see what network activity is happening. The easiest way for you to do this is to right click on the page and click "inspect element". Go to the "Network" tab. Generate a test wallet. You will see there is no network activity. You may see something happening that looks like data:image/gif and data:image/png. Those are the QR codes being generated...on your computer...by your computer. No bytes were transferred.
  • If you do not feel comfortable using this tool, then by all means, do not use it. We created this tool as a helpful way for people to generate wallets and make transactions without needing to dive into command line or run a full node. Again, feel free to reach out if you have concerns and we will respond as quickly as possible. Thanks!

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Success! Your wallets have been generated.

**You need your Keystore File + password or Private Key** to access this wallet in the future. Please save & back it up externally! There is no way to recover a wallet if you do not save it. Read the [help page](https://www.myetherwallet.com/#help) for instructions.
Address Identicon Address Private Key (unencrypted)