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This standalone webapp is a browserification of the bitcoin transaction tool, if you don't know very well how to use this tool for some parts, please see the examples there

This tool under an open source MIT license is funded by NLnet under the EU Horizon 2020 Next Generation internet Search and Discovery call

Unless you know very well what you are doing never use this tool online and make sure you don't have dubious software installed

Offline means: even if the tool is a standalone one inside browsers and does not send/query anything outside, it is still highly advised to disconnect from the network when you are using your private keys (unplug the network cable, disconnect from the wifi, etc), click the below button to check that you are offline and get further recommendations

Am I offline?

Donation address: BTC 19LgEmzSvD1oCr1QxT2dgmF5SSnh1aq94j, or equivalent one with other coins, see the conversion tool☺

For any question, bug report or support please email contact peersm com or post an issue on github

Note: this is a beta version, until we remove this note please make sure to save this page as wallet.html somewhere if you use the tool to generate addresses

Copyright © 2019 Aymeric Vitte - Waves animation inspired by Jelena Jovanovic

Click here to check the code right after loading this page

Then compare this hash to https://github.com/Ayms/bitcoin-transactions/blob/master/hash.txt

If it does not match refresh the page and try again, if it still does not match then just stop here and advise

Drop this check button in your browser's personal bar for future uses

This is much more secure than loading it each time and you can check the tool code from a secure button

Please nothe that this is NOT optional YOU MUST do this to check the code integrity each time you load the page

This defeats all possible attacks from the outside and possible attempts to steal your keys

See Custom buttons as an example

This application has been reviewed by ROS experts

Please note also that it is not a very good idea to browse this page from your disk since you can miss important updates (but as indicated above save it when you generate addresses)

Create transaction

Transaction id-Network fees or Error

Transaction body to paste in an explorer

Complete transaction to send to a node

Transaction details

Enter the transaction to decode:

Decode transaction

Enter the transaction to verify:

Verify transaction

From BTC to
(you can use the same target coin to discover the corresponding segwit and bech32 addresses)

Convert address

Note: we don't know how safe is the javascript pseudo random generator, as an example of incertitude you can take a look at Past unsuspected vulnerabilities in js prng therefore it is not advised to use the generate seed buttons below except for testing purposes, see QRNG

Generate BIP32 seed
Generate BIP39 seed
words
BIP32 BIP39 BIP44 BIP49 BIP84 BIP141
Start: Number of rows (<100):
Generate addresses
Recover seed

Enter the multisig redeem script to decode:

Decode multisig redeem script
Create multisig redeem script
Get public key
Get private key from WIF format
Get WIF format for private key
Derive key to addresses, segwit, bech and hash
Sign message
Verify signature