Cointoolkit Welcome to the Blockchain
Be your own bank, take control of your own money and start using NuBits today!
This is the first tool that supports combining signatures in a multi signature transaction. Verify your first transaction, click the number of signatures and combine the other versions
Quick access to an online wallet where only you have access to your own private keys!
Use what we've built to write your own projects! See our documention (coming soon), or contribute at github.
QR Code Generator transfer data easily between devices
You can store anything from an address to a entire transaction or a private key
Create new address
Any keys used you will need to manually store safely as they will be needed later to redeem the coins.
You can use the advanced options below to generate different kind of keys and addresses.
New Multisig Address Secure multisig address
Public keys can be generated in your browser or from your wallet.
Enter the public keys of all the participants, to create a multi signature address. Maximum of 15 allowed. Compressed and uncompressed public keys are accepted.
Enter the amount of signatures required to release the coins
New HD Address making bip32 even easier
Use the form below to generate a master hierarchical deterministic address.
You can use the advanced options below to generate different kinds of master addresses.
New Transaction Create a new transaction
Use this page to create a raw transactionAddress, WIF key or Multisig Redeem Script:
(80 byte limit, 40 bytes recommended)
The locktime indicates the earliest time a transaction can be added to the block chain.
Indicates the timestamp of a transaction.
The settings page can be used to select alternative networks of which you can retrieve your unspent outputs and broadcast a signed transaction into.
Verify transactions and other scripts
Enter the raw transaction, redeem script, pubkey, hd address or wif key to convert it into a readable format that can be verified manually.
The above redeem script has been decoded
|Address||Pubkey||Identity (if known)|
The above script has been decoded
|Address||Identity (if known)||Amount||Script|
The above wif key has been decoded
Private key in hex:
The above public key has been encoded to its address
The key has been decoded
The path of key derivation
Keys derived from the hd address provided
|Index||Address||Private Key (WIF)||Extended xPub||Extended xPrv|
Sign Transaction once a transaction has been verified
About open source toolkit
What is Bitcoin?
Bitcoin is a type of digital currency in which encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank. See weusecoins.com for more information.
If you are looking to buy some Bitcoin try LocalBitcoins.com.
This toolkit supports multiple cryptoassets other than bitcoin
Cointoolkit is a free and open source project released under the MIT license, originally released by OutCast3k as Coinb.in in 2013, and modified to work with Peershares assets by firstname.lastname@example.org
Please donate here if you found this project useful or want to see more features!
Customize the wallet settings to allow using the toolkit in other cryptoassets.
Select which network you'd like to use for key pair generation.
Select the provider you wish to retreive your unspent inputs from
Select the provider you wish to retreive transactions input amounts
Select the provider you wish to broadcast the transaction via