Bitcoin Signer
Send your Bitcoin in the safest way.
100% Free,Open Source!Offline signature, the most secure Bitcoin transfer method
Open Source
Signer is an open source web based wallet written in javascript and released under the MIT license which means it's free to use and edit.
MultiSig
We offer a fully transparent multisig solution which works seamlessly offline and with other bitcoin clients.
Wallet
Quick access to an online wallet where only you have access to your own private keys & can calculate your own fee!
Addresses
We support regular addresses, multisig, segwit / bech32 and stealth all with access to your own private keys!
Development
Use what we've built to write your own projects! See our documention (coming soon), or contribute at github.
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 bitcoins.
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 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
Use this page to create a raw transaction
Your Address, WIF key, Redeem Script or Transaction ID:Bitcoin 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 BTC
for a transaction of 0 bytes
? Sat/Byte
Inputs
0 Bytes
Regular Compressed 1 148 bytes *estimate
SegWit 0 0 bytes *estimate
MultiSig 0 0 bytes *estimate
Hodl Time Locked 0 0 bytes *estimate
Unknown 0 0 bytes *estimate
Outputs
0 Bytes
Regular p2pkh (1...) 2 68 bytes *estimate
Regular p2sh (3...) 0 0 bytes *estimate
Blockchain Data
This is based on us comparing your transaction against a very recent transaction found in a very recent block
Block Height: ?
Block #: ?
Block Time: ?
Transaction ID: ?
Transaction Size: 0 bytes
Transaction Fee: 0.00000000
Satoshi per Byte: 0
Based on your data and this recently mined transaction we recommend a fee of 0.00000000 BTC to get it into the next few blocks
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.
Transaction Script
The above script has been decoded
| Txid | N | Script | Signed? | MultiSig? |
| Address | Amount | Script |
WIF key
The above wif key has been decoded
Address:
Public key:
Private key:
Is compressed:
Public key
The above public key has been encoded to its address
Legacy Address:
P2SH Segwit Address:
P2SH Segwit Redeem Script:
Bech32 Address:
Bech32 Redeem Script:
HD Address
Key Derivation
The path of key derivation
/
Keys
Keys derived from the hd address provided
| Index | Address | Private Key (WIF) | Extended xPub | Extended xPrv |
Sign Transaction
Recommended offline
In order to prevent the private key from being exposed on the network, it is recommended to sign on an Android, IOS or computer device that is not connected to the Internet to realize offline signing.
Development Javascript framework, API and more
About open source bitcoin wallet
Version 1.0
Compatible with bitcoin core
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.
Information
This is a bitcoin/litecoin/dogecoin online and offline wallet,you can sign your transaction offline,No need to expose your private key to the Internet or other wallets, offline signatures make your wallet 100% safe.
Privacy
We believes strongly in privacy, not only do we support the use of TOR, the site does not collect and store IP or transaction data via our servers nor do we store your bitcoins private key. We do route traffic via cloudflare using an SSL certificate.
Donate
Please donate to 1GkMoCVKvT7ZcDUGXemhT3CusgE68wiJ66 if you found this project useful or want to see more features!
Run on iPhone/iPad
on Windows,MAC,Linux,we just run index.html in browser online or offline,it doesn't need any addtional install.
You need prepare a MAC computer in order to transfer project files through airpdrop.
1.This project is HTML+JS, so we need download a HTML viewer from Appstore.you can also use other html viewer APP in APPStore
2.drag project folder to our iPhone/iPad through Airdrop
3.save folder to HTML Viewer
4.tab folder icon in HTML Viewer APP
5.find index.html,and tab it.
6.Now we can run Signer on our iPhone and iPad Successfully!
Tips:iPhone camera can directly scan QR codes offline
7.If you want to sign offline, just turn on airplane mode.
8.Still worried?turn off the WIFI permit of APP.
How to use
Download the project file,unzip,then you can run the index.html locally with any browser on Windows,Linux,MAC OS...
Choose the cryptocurrency you want to use.
1:Create transaction
2:Sign transaction,It is recommended to sign on an offline device.
3:Broadcast transaction
Settings
Select which network you'd like to use for key pair generation.
Select the network you wish to broadcast the transaction via
Select the network you wish to retreive your unspent outputs from
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!