Here you can complete two tasks:
(1) Create a new wallet: Enter a password and click the "Create Wallet" button. You can also choose not to enter a password, but it is recommended to protect the mnemonic with a password.
(2) Restore a wallet from a mnemonic: Enter your previous mnemonic and password (if any), then click the "Create Wallet" button.

The entire HD wallet can be restored from the mnemonic, seed, or root extended private key. The account extended private key can restore all ordinary wallets within an account, and a single private key can restore one ordinary wallet. Therefore, an HD wallet is equivalent to a mnemonic, a seed, or a root extended private key, while an ordinary wallet is equivalent to a single private key. Root extended private keys and account extended private keys start with "zprv" and are 111 characters long, whereas ordinary private keys are about 50 characters long. Thus, an HD wallet contains many ordinary wallets.

You can input content in the password field and the red text areas below.

Enter a private key to derive the public key and various types of Bitcoin addresses.

Here you can generate P2SH or P2WSH multi-signature addresses, or generate P2TR script path addresses. The P2TR key path address is generated in the "Create Wallet & Restore Wallet" section.

Here you can query all UTXOs and the total balance of a wallet address, or enter a transaction ID to query a specific transaction.

Sign a piece of text with a Bitcoin private key, or verify the signature of a piece of text.

You can initiate a transfer transaction here. The version, marker, lock time, and flag in the transaction body generally do not need to be modified unless you understand their exact purpose and truly need to change them. The main task in creating a transaction is to add inputs and outputs. Inputs are the senders, and outputs are the recipients. The Bitcoin-to-USD exchange rate is used to calculate the transaction fee. For example, if you are willing to pay a $2 fee, it will be automatically converted to "satoshis" based on the exchange rate. All amounts in the transaction are in satoshis, where 1 Bitcoin equals 100 million satoshis.

A rough estimate of the transaction fee (in USD): 1 + (number of inputs * 0.8) + (number of outputs * 0.5). For example, if your transaction has three inputs and two outputs, the fee would be 1 + 3*0.8 + 2*0.5 = 4.4 USD. Higher fees result in faster transaction processing, while lower fees may take longer, typically within a few hours.

Steps: (1) First, set the fee (can be modified). (2) Do not modify the version, marker, lock time, or flag unless you understand their exact meaning and truly need to change them. (3) When adding inputs, query the available UTXOs for the wallet address. Do not modify the sequence number or address type unless necessary.

It is recommended to use the Firefox browser and open this page in the browser's private window.

Since signing requires the private key, it is recommended to disconnect from the internet to ensure absolute security. When copying the private key, use segmented copying. For other more detailed parameters involved in decrypting the private key, please set them in 'Private Key Protection' under 'Tools' (if needed).

Instructions: (1) Click the "Import Inputs" button to import the inputs added in the previous step. (2) Check the inputs that need to be signed. (3) Enter the private key. Note: One private key can sign multiple inputs at once, and one input can be signed multiple times by different private keys. All inputs must be signed.

Since signing requires the private key, it is strongly recommended to: Use the Firefox browser, open this page in the browser's private window, and ensure the browser is in offline mode before signing. If you are unsure how to do this, refer to the "Help" section below.

Convert the transaction body into Hex format for subsequent transaction broadcasting!

Instructions: Simply click the "Output Hex Format" button.

Here you can deconstruct the Hex-encoded raw representation of transaction into its components and verify each field. Pay special attention to the recipient address, amount, output script, and transaction fee.

Instructions: By default, the Hex-encoded raw representation of transaction generated in step 3 is imported. You can also enter it separately.

Here you can broadcast the Hex-encoded raw representation of transaction to the network. Miners will accept and include it in a block. The transaction typically completes within minutes or hours, but may fail depending on the fee you set. Higher fees result in faster processing. Even after inclusion in a block, the transaction is not 100% confirmed until about 5-6 more blocks are added, which may take about two hours.

There are two ways to broadcast a transaction: (1) Click the "Broadcast" button directly, or (2) Broadcast it on the websites listed below.

Here you can manage Ethereum wallets. The same mnemonic with different passwords will generate different Ethereum wallets. You can restore an HD wallet from a mnemonic or derive public keys and addresses from an existing private key (whether password-protected or not).
1. To create a new wallet, first determine the number of mnemonic words (minimum 12, maximum 24; more words make it harder to guess) and the language of the mnemonic (e.g., English, Simplified Chinese, etc.). The "mnemonic" + "mnemonic password" can derive numerous private keys (one private key corresponds to one wallet). Different passwords will derive different private keys even with the same mnemonic, so it is recommended to protect the mnemonic with a password. The "wallet path" is a string like "m/44'/60'/i'/0/j...", representing the j+1th wallet in the i+1th account, where i and j are integers greater than or equal to 0. You can only change i and j or extend the path. For example, the default path "m/44'/60'/0'/0/0" represents the 1st wallet in the 1st account, "m/44'/60'/0'/0/5" represents the 6th wallet in the 1st account, "m/44'/60'/3'/0/2" represents the 3rd wallet in the 4th account, and "m/44'/60'/2'/0/1/3" represents the 4th sub-wallet under the 2nd node in the 3rd account. However, it is recommended not to make the wallet path too long or complex to avoid confusion or forgetting.
If you input the Private Key Password, then the private key will be encrypted using this password.
2. To restore a wallet, there are two methods: (1) Restore from the "mnemonic language," "mnemonic," "mnemonic password," and "wallet path" by entering the language, mnemonic, password, and path used when creating the wallet. (2) Restore the wallet address from a private key by entering the private key. If the private key is encrypted, you also need to enter the "Private Key Password".

If you plan to use the created wallet formally, be sure to remember the mnemonic, mnemonic password (if any), wallet path, private key, Private Key Password(if any), and address. It is recommended to encrypt the private key. The address can be shared with others for receiving coins, but all other information must never be disclosed.

Here you can query the balance of an Ethereum wallet or enter a transaction ID to query a specific transaction.

Sign a piece of text to identify the owner of the address, similar to a handwritten signature in real life. Use the private key to sign and the public key to verify the signature. The signed text cannot be modified; otherwise, the signature verification will fail. The other party must obtain the text, public key, and signature in order to verify the signature. The private key must be a string represented in hexadecimal format, such as c6f53ee725f194b9bc8d06b61b91fa1d2fb6884d2a36fe037579bbb950f67ee2. The public key is also a hexadecimal string and must have the 0x prefix removed, for example 02f7eb7c084a14c30a3a5e6e0dcc10a9881ebf90ba45039f366d1919559c92f3c4.

"Recipient Wallet Address" is the Ethereum address to which coins will be transferred, such as "0xB8309ea73A7C61599bF33C73085D24511E042b06".
"Transfer Amount" is the number of Ether to transfer, such as 0.005 Ether, or 0 Ether (if you only want to store information in the remarks).
"Transaction Fee" is the amount in USD you are willing to pay for this transfer, which will be deducted from the sender's wallet in equivalent Ether. The fee is unrelated to the transfer amount but may be related to the "remarks." If there are no remarks, a transaction fee is typically around $5. Higher fees result in faster processing, while fees below $1 may take longer or fail.
"Wallet Private Key" is the private key of the sender's wallet, used for signing. An unencrypted private key looks like 0x6b714fb46b3558192193712dd9dacabd0e29f75b02c81e21d4fc675f9d50719a, while an encrypted private key looks like 6PYK8XSffZBgqqCMX2METG2VXUdAX5EfMDnCAV6D66B2dWQzdF4Za9Yspr.
"Private Key Password" is used to decrypt the private key. If your private key is encrypted, you must enter the password to decrypt it; otherwise, leave it blank.
"Nonce" is the sequence number of the sender's wallet for outgoing transactions. For a new wallet, the first outgoing transaction has a nonce of 0, the second is 1, and so on. If the network is accessible, the nonce will be obtained automatically; otherwise, it must be entered manually and cannot be incorrect. You can query the nonce on third-party websites.
"Transaction Type" defaults to 2 (EIP-1559), which is currently the most widely used, with low fees. Do not modify this unless you fully understand the implications.
"Gas Limit" defaults to 21000. If you add remarks, you must increase the gas limit; otherwise, miners will ignore the transaction.
"Tip to Miner" is specific to type 2 transactions. The tip is part of the "Transaction Fee"—the amount you are willing to allocate to miners. The difference between the transaction fee and the tip is transferred to the 0x0000000000000000000000000000000000000000 address, where the Ether is permanently locked, effectively reducing circulation. Typically, the tip accounts for over 90% of the transaction fee. The tip incentivizes miners to process your transaction faster.
"Remarks" can contain up to 7000 Chinese characters. If you want to permanently store information on the blockchain, enter it here. More text increases the transaction fee, potentially costing tens or hundreds of dollars.

Here you can broadcast the Hex-encoded transaction to the network. Miners will accept and include it in a block. The transaction typically completes within minutes but may fail depending on the fee. Higher fees result in faster processing. Even after inclusion in a block, the transaction is not 100% confirmed until about 5-6 more blocks are added, which may take several minutes. There are two ways to broadcast a transaction: (1) Paste the Hex-encoded transaction code into the input box and click the "Broadcast" button, or (2) Broadcast it on the third-party websites listed below.
Before broadcasting, it is recommended to click the "Decode" button to verify all fields, especially the recipient address, transfer amount, and fee.

Manage your Litecoin wallet here. The same mnemonic phrase will generate different Ethereum wallets if the passwords are different. You can recover an HD wallet from the mnemonic phrase, or export public keys and addresses from existing private keys (whether the private keys are password-protected or not). 1. To create a new wallet, first determine the number of mnemonic phrases (at least 12, maximum 24; the more mnemonic phrases, the harder it is to guess) and the language used for the mnemonic phrases (such as English mnemonics or Simplified Chinese mnemonics). 'Mnemonic phrases' and 'mnemonic passphrase' can export a large number of private keys (one private key corresponds to one wallet). Different passwords will result in different exported private keys, even if the mnemonics are the same, so it is advisable to use a password to protect the mnemonic phrases. The 'wallet path' is a string in the form of 'm/84'/2'/i'/0/j...' which indicates the j-th wallet in the i-th account, where i and j are non-negative integers; you can only change i and j, or increase the length. For example, the default path 'm/84'/2'/0'/0/0' indicates the first wallet in the first account, 'm/84'/2'/0'/0/5' indicates the sixth wallet in the first account, 'm/84'/2'/3'/0/2' indicates the third wallet in the fourth account, and 'm/84'/2'/2'/0/1/3' indicates the fourth sub-wallet under the second node in the third account. However, it is advisable not to make the wallet path too long or complex, as it may lead to mistakes or forgetting. Note: The path for testnet wallets is 'm/84'/1'/...'. If a private key passphrase is entered, the final private key will be protected with encryption; when using the password-protected private key for signing in the future, remember to enter this private key passphrase. 2. To recover a wallet, there are two methods: one method is to recover from 'mnemonic language', 'mnemonic phrase', 'mnemonic passphrase', and 'wallet path'; as long as you enter the language, mnemonic phrase, mnemonic passphrase, and wallet path used when the wallet was previously created, all private keys can be recovered. The second method is to recover the wallet address from the private key, which requires entering a private key; if the private key is password-protected, you will also need to enter the private key passphrase.

If you intend to use the created wallet officially, be sure to remember the mnemonic phrase, mnemonic protection password (if any), wallet path, private key, and address. It is recommended to further encrypt the private key (operations can be done on the 'Wallet Management' > 'Private Key Protection' page). The address can be shared with others for them to send coins to this address, but absolutely do not disclose any other information.

Enter the private key to export the public key and various types of Litecoin addresses.

Here you can query all UTXOs and the total balance based on the wallet address, and you can also enter the transaction ID to query a specific transaction.

Use the Litecoin private key to sign a piece of text or to verify the signature of a piece of text. When withdrawing cryptocurrency from some cryptocurrency trading platforms (such as HashKey Exchange), you are required to sign a piece of text to ensure that the address owner (which is essentially just tracking the direction of the cryptocurrency) is legitimate.

The "wallet address for transfer" refers to the wallet address where Ether is transferred, in the format of "0xB8309ea73A7C61599bF33C73085D24511E042b06".
"Transfer amount" indicates how many Ethers are being transferred, such as 0.005 Ether, and it can also be 0 Ether (in which case you just want to save information in the notes).
"Transaction fee" is the amount of dollars you are willing to pay as a transaction fee for this transfer, which will ultimately be deducted from the outgoing wallet in an equivalent amount of Ether. The fee is unrelated to the transfer amount but is connected to the "notes"; if there are no notes, the fee for a transaction is generally around 5 dollars, and the higher the fee, the faster the transaction is completed. However, if the fee is below 1 dollar, the transaction time can be lengthy or even fail.
"Wallet private key" is the private key of the wallet from which funds are being transferred, used for signing. The plain private key is in the format 0x6b714fb46b3558192193712dd9dacabd0e29f75b02, and the encrypted private key is in the format 6PYK8XSffZBgqqCMX2METG2VXUdAX5EfMDnCAV6D66B2dWQzdF4Za9Yspr.
"Private key password" is used to decrypt the private key; if your private key is encrypted, you must enter the password to decrypt the key; otherwise, do not enter the "private key password".
"Serial number" indicates how many times Ether has been transferred from the outgoing wallet; the first transfer from a new wallet is 0, the second is 1, and so on. If the network is smooth, the serial number will be obtained automatically; otherwise, it must be entered manually and cannot be incorrect. You can check the wallet's serial number on other third-party websites.
The "transaction type" defaults to 2 (EIP-1559), which is currently the most widely used; the transaction fee is low unless you thoroughly understand the true meaning of the "transaction type" and must change it, so do not change it lightly.
"Gas limit" defaults to 21000; if you add notes, you must raise the gas limit; otherwise, miners will ignore this transaction.
"Tip for miners" is unique to transaction type 2; the tip is included in the "transaction fee", meaning how much of the transaction fee you are willing to allocate as a tip for miners. The difference between the transaction fee and the tip goes to the 0 address (0x0000000000000000000000000000000000000000); the Ether in this address can never be transferred, effectively destroying the Ether and thus reducing circulation.
Typically, tips account for over 90% of transaction fees. Tips are given to miners, so the more the tip, the more it can incentivise miners to process your transaction quickly.
"Notes" can contain up to 7000 Chinese characters; if you want to permanently retain information on the blockchain, enter it into the notes; the more characters, the higher the transaction fee, with potential fees reaching dozens to hundreds of yuan.

As the signature requires the use of a private key, in order to ensure the absolute security of the private key, it is recommended to disconnect from the network and to copy the private key in segments.

Instructions: (1) Click the 'Import Inputs' button to import the inputs added in the previous step; (2) Check the inputs that need to be signed; (3) Enter the private key. Note: One private key can sign multiple inputs at once, and one input can be signed multiple times by different private keys, for example, for multi-signature addresses P2SH and P2WSH. All inputs must be signed.

As the signature requires the use of a private key, it is strongly recommended that you do the following: use the Firefox browser and open this page in the browser's private window. Before signing, you must set the browser to offline mode. If you are unsure how to do this, please refer to the 'Get Help' section below.

Transactions in Hex format can be posted online here, after which miners will accept and package them onto the blockchain. The transaction time is usually completed within one minute, but it may also fail, depending on the transaction fee you set; the higher the fee, the faster the transaction is completed. Moreover, even if the transaction has been recorded on the blockchain, there is no absolute guarantee that it has been reliably credited; it is necessary to wait for approximately 5 or 6 more blocks to be generated to ensure that the funds are indeed reliably credited, so this may take several minutes. There are two methods to publish a transaction: one is to directly paste the hex format transaction code into the input box and then click the "Publish" button, and the other is to publish it on the Di San Fang website listed below.However, it is recommended to click the "Decode" button before formally publishing to double-check and confirm each field, especially the counterparty's address, transfer amount, and transaction fee.

Manage your Solana (SOL) wallet here. The same mnemonic phrase will generate different Solana wallets if the password is different. You can recover an HD wallet from the mnemonic phrase, or export the public key and address from an existing private key (regardless of whether it is password-protected or not).
1. If you want to create a new wallet, first determine the number of mnemonic words (at least 12, up to 24; the more mnemonic words, the harder it is to guess) and the language of the mnemonic phrase (such as English mnemonics, Simplified Chinese mnemonics, etc.). The "mnemonic phrase" and the "mnemonic password protection" can export a large number of private keys (one private key corresponds to one wallet). Different passwords will result in different exported private keys, even if the mnemonic phrase is the same, so it is recommended to use a password to protect the mnemonic phrase. The "wallet path" is a string in the form of "m/44'/501'/i'/j'", indicating the j-th Solana wallet in the i-th account, where i and j are non-negative integers (less than 2147483648); you can only change i and j, or add length. For example, the default path "m/44'/501'/0'/0'" signifies the first wallet in the first account, while "m/44'/501'/0'/5'" indicates the sixth wallet in the first account, and "m/44'/501'/3'/2'" denotes the third wallet in the fourth account.
If a private key protection password is entered, the final private key will be encrypted; when signing later with the password-protected private key, you will need to enter this private key protection password, so do not forget it.
2. If you need to recover a wallet, there are two methods. One method is to recover from the "mnemonic phrase language", "mnemonic phrase", "mnemonic password protection", and "wallet path"; you simply need to input the language, mnemonic phrase, mnemonic password protection, and wallet path used when the wallet was created to recover all private keys. The second method is to recover the wallet address from the private key, which involves entering a private key; if the private key is encrypted, you will also need to input the private key protection password.

If you intend to use the created wallet officially, be sure to remember the mnemonic phrase, the mnemonic phrase protection password (if any), wallet path, private key, private key protection password (if any), and address. The address is to be shared with others so they can send coins to that address; any other information must not be leaked at all.

Here you can check the balance of your Solcoin wallet and enter a transaction ID to query a specific transaction.

Signing a text to confirm the ownership of an address, similar to a handwritten signature in real life. The signing is done with a private key and the signature is verified with a public key. The signed text cannot be altered, otherwise the signature verification will fail. The other party must obtain the text, the public key, and the signature before they can verify the signature. The private key must be a string represented in hexadecimal, i.e. in hex encoding format, such as c6f53ee725f194b9bc8d06b61b91fa1d2fb6884d2a36fe037579bbb950f67ee2. The public key is also a hexadecimal string and must have the 0x prefix removed, for example 02f7eb7c084a14c30a3a5e6e0dcc10a9881ebf90ba45039f366d1919559c92f3c4.

The "account address" is the wallet address for receiving SOL, in the format "Ac7fqMjTiogkoJPFtS3CtfFyWcfCZ65s9SEaEQrYm6Xx".
"Transfer amount" is how many SOL coins are being transferred, such as 0.5 SOL, and it can also be 0.
"Key" is the key for the wallet from which the funds are being sent, used for signing. The plaintext key looks like SAgbmAn37yv2c9EDg8D78u7M9zVxNTieLrUTmZ333VqADpzsWWQhEW8a8r4zueTLmhphbxfXyMLFuQuxLymGPvAhWcdC7.
"Data" can contain up to 7000 Chinese characters, and if you want to permanently store information on the blockchain, enter it here; the more characters, the higher the transaction fee, which could be several dollars.
Note: When saving data, you cannot make a transfer; when transferring, you cannot save data. If you want to permanently save data, then you do not need to input "account address" and "transfer amount". If you want to transfer, make sure to leave "data" blank.

Here you can publish transactions in Base64 encoding format online. There are two ways to publish a transaction: one is to directly paste the hex format transaction code into the input box and then click the 'Publish' button, and the other is to publish on the third-party site mentioned below. However, it is recommended to double-check each field, especially the counterpart address, transfer amount, and transaction fee, by clicking the 'Decode' button before the official publication.

Manage your Dogecoin wallet here. The same mnemonic phrase will generate different Ethereum wallets if the passwords are different. You can restore an HD wallet from a mnemonic phrase, or export public keys and addresses from an existing private key (whether it's password-protected or not).
1. If you want to create a new wallet, first determine the number of words in the mnemonic phrase (minimum 12, maximum 24; the more words, the harder it is to guess) and the language of the mnemonic phrase (e.g., English mnemonics, Simplified Chinese mnemonics, etc.). The "mnemonic phrase" and "mnemonic phrase protection password" can be used to export a large number of private keys (each private key corresponds to one wallet). If the passwords are different, even if the mnemonics are the same, the exported private keys will be different. Therefore, it is recommended to use a password to protect the mnemonic phrase. The "wallet path" is a string like "m/44'/3'/i'/0/j..." representing the j-th wallet in the i-th account. Both i and j are integers greater than or equal to 0; you can only change i and j or increase the path length. For example, the default path "m/44'/3'/0'/0/0" represents the first wallet in the first account, "m/44'/3'/0'/0/5" represents the sixth wallet in the first account, "m/44'/3'/3'/0/2" represents the third wallet in the fourth account, and "m/44'/3'/2'/0/1/3" represents the fourth sub-wallet under the second node in the third account. However, it is recommended that the wallet path not be too long or complicated, otherwise it is easy to make mistakes or forget it. Note: The path for testnet wallets is "m/44'/1'/...".
If a private key protection password is entered, the final private key will be encrypted. When using a password-protected private key to sign transactions in the future, this password must be entered, so do not forget it.

2. If you want to restore a wallet, there are two methods. One method is to recover it using the "mnemonic language," "mnemonic," "mnemonic protection password," and "wallet path." By entering the language, mnemonic, mnemonic protection password, and wallet path used when the wallet was originally created, you can recover all the private keys. The second method is to restore the wallet address from a private key, which means you only need to enter a private key. If the private key is protected by encryption, you also need to enter the private key protection password.

If you plan to use the created wallet formally, you must remember the mnemonic phrase, the mnemonic protection password (if any), the wallet path, the private key, and the address. It is recommended to further encrypt the private key for protection (operate this on the "Wallet Management" > "Private Key Protection" page). You can share the address with others so they can send coins to it, but any other information must never be disclosed.

Enter the private key to export the public key and various types of Dogecoin addresses.

Here you can generate P2SH type multi-signature addresses. For m-of-n type multi-signatures, it means that at least m and at most n people need to sign.

Here you can check all UTXOs and the total balance based on a wallet address, or you can enter a transaction ID to query a specific transaction.

Sign a piece of text with a Dogecoin private key, or verify the signature of a piece of text. When withdrawing cryptocurrency from some crypto trading platforms (such as HashKey Exchange), you are required to sign a piece of text to ensure that you are the owner of the address (which is basically just to track the destination of the cryptocurrency).

"'Destination Wallet Address' is the wallet address for transferring Dogecoin, in the format like '0xB8309ea73A7C61599bF33C73085D24511E042b06'.
'Transfer Amount' refers to how many Dogecoins are being transferred, such as 0.005 Dogecoin, or it can be 0 Dogecoin (in which case you only want to save information in the note).
'Transaction Fee' is the amount in USD you are willing to pay as a fee for this transfer, which will ultimately be deducted from the sending wallet in the equivalent amount of Ethereum. The fee is unrelated to the transfer amount but is associated with the 'note'. Without a note, a transaction fee typically ranges around 5 USD. The higher the fee, the faster the transaction will be completed; if it is below 1 USD, the transaction may take longer or even fail.
'Wallet Private Key' is the private key of the sending wallet, used for signing. An unencrypted private key looks like 0x6b714fb46b3558192193712dd9dacabd0e29f75b02c81e21d4fc675f9d50719a, while an encrypted private key looks like 6PYK8XSffZBgqqCMX2METG2VXUdAX5EfMDnCAV6D66B2dWQzdF4Za9Yspr.
'Private Key Password' is used to decrypt the private key. If your private key is encrypted, you must enter the password to decrypt it; otherwise, do not enter anything for 'Private Key Password'.
'Nonce' is the count of how many times the sending wallet has sent Ethereum. For a new wallet, the first transfer has a nonce of 0, the second transfer is 1, and so on. If the network is smooth, the nonce will be obtained automatically; otherwise, it must be entered manually, and it must be correct. You can check the wallet's nonce on other third-party websites.
'Transaction Type' defaults to 2 (EIP-1559), which is the most widely used type today with low transaction fees. Unless you fully understand the true meaning of 'Transaction Type' and need to modify it, do not change it lightly.
'Gas Limit' defaults to 21000. If you add note content, you must increase the gas limit, otherwise miners may ignore the transaction.
'Miner Tip' is specific to transaction type 2. The tip is included in the 'Transaction Fee', meaning it is the portion of the transaction fee you are willing to allocate as a tip for the miner. The difference between the transaction fee and the tip is sent to the zero address (0x0000000000000000000000000000000000000000), whose Ethereum can never be spent, effectively destroying it and reducing circulation. Typically, the tip accounts for more than 90% of the transaction fee. Since the tip is given to miners, a higher tip incentivizes miners to process your transaction more quickly.
'Note' can contain up to 7000 Chinese characters. If you want to permanently store information on the blockchain, enter it in the note. The more characters, the higher the transaction fee, which can range from tens to hundreds of dollars.

Since signing requires the use of a private key, to ensure the absolute security of the private key, it is recommended to disconnect from the network and to copy the private key in segments.

Instructions: (1) Click the 'Import Inputs' button to import the inputs added in the previous step; (2) Check the inputs that need to be signed; (3) Enter the private key. Note: A single private key can sign multiple inputs at once, and a single input can be signed multiple times by different private keys, such as for multi-signature P2SH and P2WSH addresses. All inputs must be signed.

Since signing requires the use of a private key, it is strongly recommended that you do the following: use the Firefox browser and open this page in the browser's private window. Before signing, the browser must be set to offline mode. If you are unsure how to do this, please refer to the 'Get Help' section below.

Here, you can broadcast a transaction in Hex format online, after which miners will accept it and include it in the blockchain. The transaction may complete within one minute, but it may also fail, depending on the transaction fee you set—the higher the fee, the faster the transaction is completed. Additionally, even if the transaction is included in the blockchain, it cannot be guaranteed to be fully confirmed; you need to wait for about 5 or 6 more blocks to ensure that the funds are reliably credited, so this may take several minutes. There are two ways to broadcast a transaction: one is to directly paste the Hex transaction code into the input box and click the 'Broadcast' button, the other is to post it on the designated website listed below.
However, it is recommended that before officially broadcasting, you click the 'Decode' button and carefully check each field, especially the recipient's address, the transfer amount, and the transaction fee.