Welcome to the Blockchain

Online wallet creator

Bitcoin Interest Edition. All the data is stored only on your browser. Don't forget to write down your keys before exit.

Open Source

btgwallet.online and Coinbin are an open source web based wallets written in javascript and released under the MIT license which means it's free to use and edit. None of the providers and developers bare responsibility if a user get scammed. By using this software you are agreeing that it has no warranty.


We offer a fully transparent multisig solution which works seamlessly offline and with other Bitcoin Interest clients.

Raw Transactions

Create, verify, sign and broadcast custom raw transactions online with advanced features and minimal effort!


Quick access to an online wallet where only you have access to your own private keys!


We support regular addresses, multisig, segwit and stealth all with 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.

browser based Bitcoin Interest wallet

New Address create a new address

Any keys used you will need to manually store safely as they will be needed later to redeem the Bitcoin Interest.

Address Options

You can use the advanced options below to generate different kind of keys and addresses.

New SegWit Address Smaller & Faster Transactions

Any keys used you will need to manually store safely as they will be needed later to redeem the bitcoins.

Address Options

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 Bitcoin Interest client.

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 Time Locked Address Coins can be released only after a certain date

Use OP_CHECKLOCKTIMEVERIFY (OP_HODL) to create a time locked address where the funds are unspendable until a set date and time has passed.

Public keys can be generated in your browser or from your bitcoin client.

Enter the public key that will be able to unlock the funds after the a certain date.

Enter the or required to release the coins:

New HD Address making bip32 even easier

Use the form below to generate a master hierarchical deterministic address.

Address Options

You can use the advanced options below to generate different kinds of master addresses.

Transaction Create a new transaction

Use this page to create a raw transaction

Address, WIF key or Redeem Script:

Advanced Options


Enter the address and amount you wish to make a payment to.

Enter the details of inputs you wish to spend.

Bitcoin Interest Fee Calculator

This page will give you a guide on the lowest fee to use to get your transaction included within the next few blocks. It works by predicting the size of a transaction and comparing it to another transaction in a recent block to determine an appropriate fee.

Recommended Fee: 0.00000000 BCI
for a transaction of 0 bytes

? Sat/Byte

0 Bytes

Regular Compressed 1 148 bytes

SegWit 0 0 bytes

MultiSig 0 0 bytes

Hodl Time Locked 0 0 bytes

Unknown 0 0 bytes


0 Bytes

Regular p2pkh (1...) 2 68 bytes

Regular p2sh (3...) 0 0 bytes

Chargable Transaction Size: 0 bytes

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.

Sign Transaction once a transaction has been verified

Once you have verified a transaction you can sign and then broadcast it into the network.

Advanced Options

Broadcast Transaction into the Bitcoin Interest network

Enter your hex encoded Bitcoin Interest transaction

Development Javascript framework, API and more

This section is currently under development and is subject to change.

About open source Bitcoin Interest wallet

Version 1.4

Compatible with bitcoin-qt

Github https://github.com/fellu/coinbin/

What is Bitcoin Interest?

Bitcoin Interest ("BCI") is a competitive staking cryptocurrency focusing on three key areas Technology, Community, and Savings. Our blockchain has new integrated savings technology that allows our users to safely park their coins and earn interest payments without ever moving coins from their wallets.

Don't Risk Your Coin Holdings

Unlike other interest payment platforms that require you to send your coins to them, Bitcoin Interest is the first fully decentralized interest payments platform that will never ask you to send your coins anywhere! With our advanced interest technology you can hold your coins in your own wallet and receive interest payments with absolutely no risk to you. You'll never be required to trust your coin holdings with anyone again!


wallet.bitcoininterest.io is a free and open source project released under the MIT license, originally by OutCast3k in 2013. Discussion of the project can be found at bitcointalk.org during its early testing stages when its primary focus was to develop a proof of concept multisig solution in javascript.

wallet.bitcoininterest.io is run and funded by the generosity of others in terms of development and hosting.


Bitcoin Interest believes strongly in privacy, the site does not collect and store IP or transaction data via our servers nor do we store your bitcoins private key. We are using an Let’s Encrypt SSL certificate.

This page uses javascript to generate your addresses and sign your transactions within your browser, this means we never receive your private keys, this can be independently verified by reviewing the source code on github. You can even download this page and host it yourself or run it offline!

Bitcoin Interest is not responsible for any lost or stolen funds. This wallet is your responsibility and we can in no way recover lost or stolen funds. Never share your private keys or passwords with anyone.