Multibit is No Longer Supported

July 26th 2017

Dear Bitcoin Community,

Moving Funds From MultiBit Classic and MultiBit HD to KeepKey

November 18th 2016

One of the most common questions we get asked at our support desk is how to easily move funds from a MultiBit Classic or MultiBit HD wallet to a KeepKey. We are excited to announce a simple utility to do just this. Below are the downloads for supported platforms:

MultiBit Beta 0.5.0 is now available

October 25th 2016

We are pleased to announce MultiBit beta release (0.5.0) is available for download. We are releasing this as beta due to the nature of the changes we made. There is a slight chance this upgrade might break prior versions of wallet data. If you install this beta, make sure you have access to your wallet words just in case.

MultiBit Classic Help

June 17th 2016

We have received numerous requests for help with MultiBit Classic related to the delay for transactions making themselves into blocks. We wanted to provide some quick pointers to help those that are experiencing this issue.

A New Face For an Old Friend

June 15th 2016

This marks the beginning of a new chapter for MultiBit, at its new home: KeepKey. Gary Rowe and Jim Burton forged the path this far. Not enough can be said about the achievement these two created with MultiBit. KeepKey is now taking the reins, and our intention is to keep MultiBit great.

KeepKey is buying MultiBit

May 25th 2016

The MultiBit team is pleased to announce that KeepKey, LLC, makers of the popular KeepKey hardware wallet, have put in an offer to buy MultiBit which has been accepted. Within a few weeks we will complete the transfer of control over the MultiBit code and website to them and we will step back from further development.

MultiBit HD Release 0.3.0 is now available

April 18th 2016

We are pleased to announce the next MultiBit HD release (0.3.0) is available for download.

MultiBit HD Release 0.2.0 is now available

February 12th 2016

We are pleased to announce the next MultiBit HD release (0.2.0) is available for download.

MultiBit HD Release 0.1.4 is now available

October 23rd 2015

We are pleased to announce the next MultiBit HD release (0.1.4) is available for download.

MultiBit Classic Release 0.5.19 is now available

September 10th 2015

We are pleased to announce the next MultiBit Classic release (0.5.19) is available for download.

MultiBit HD Release 0.1.3 is now available

August 28th 2015

We are pleased to announce the next MultiBit HD release (0.1.3) is available for download.

Bit flipping attack

July 25th 2015

This is a guest post from a security researcher who took a close look at the way that MultiBit receives payment through the BRIT system. As part of our responsible disclosure procedure here are the details of the attack and what has been done to mitigate it.

MultiBit Classic is four years old today

July 16th 2015

On 16 July 2011 Jim pushed the first commit of the MultiBit source code to GitHub. This marked the beginning of a long journey as part of the Bitcoin ecosystem which we would like to share with you today.

MultiBit HD Release 0.1.2 is now available

July 15th 2015

We are pleased to announce the next MultiBit HD Release (0.1.2) is available for download.

MultiBit HD Release 0.1.1 is now available

June 30th 2015

We are pleased to announce that our first maintenance release MultiBit HD Release 0.1.1 is available for download.

Bitcoin network stress test

June 23rd 2015

On 20 June 2015 announced that they would perform a Bitcoin network stress test starting Monday 22 June 2015 and extending over 100 blocks. The stated intention was to discover whether the block size limit of 1MB would, when transaction volume exceeded its capacity, allow for quick recovery of the network to normal service.

MultiBit HD Release 0.1 is now available

June 9th 2015

We are pleased to announce that MultiBit HD Release 0.1 is available for download.

Payment Protocol support

April 14th 2015

The Payment Protocol (BIP 70) is a Bitcoin standard describing how merchants and wallet developers can work together to produce a seamless buying experience using bitcoin. It is supported by MultiBit HD Beta 8 and higher.

BIP 32 Wallet compatibility

April 14th 2015

Thanks to the sterling work of GitHub user "gurnec" during Beta testing an incompatibility between MultiBit HD and other hierarchical deterministic (HD) wallets was discovered indicating that they are not BIP 32 compliant. This is important because "BIP 32 compliance" means that a user of one wallet can easily migrate to another in a safe manner simply by providing their "wallet words" during a restore process.

MultiBit HD Beta 8 Released

April 14th 2015

We are pleased to announce the Beta 8 release of MultiBit HD. This release includes support for the Bitcoin standard "Payment Protocol" (BIP 70). This standard enables merchants to provide signed payment requests with lots of features like memos, refund addresses, receipts etc.

MultiBit HD Beta 7 Released

February 27th 2015

As you may have noticed, we've stepped up the frequency of our beta release iteration cycle. Consequently the MultiBit HD Beta 7 is now available for download from our beta site.

MultiBit HD Beta 6 Released

February 11th 2015

Following rapidly in the footsteps of Beta 5 the MultiBit HD Beta 6 is now available for download from our beta site.

MultiBit HD Beta 5 Released

February 4th 2015

We are proud to announce that MultiBit HD Beta 5 is now available for download from our beta site.

Wallet forensics for Issue #661

February 2nd 2015

Recently a user raised Issue #661 on GitHub where unfortunately they lost a total of 1.43033675 bitcoin. This blog article provides details of the forensics we performed to find out what happened and our recommendations for action to try to prevent this happening again.

MultiBit HD is now open source

August 13th 2014

It has been a while since our last blog post so we thought we'd give you an update on our progress.

Private key safety improvements

April 28th 2014

In the MultiBit 0.5.18 release there are two changes we have made to improve the safety of your private keys:

Introducing BRIT

April 11th 2014

What is the best way to provide Bitcoin users with high quality wallet software ? How do the devs get paid ?

MultiBit HD Sneak Preview - Welcome Wizard

March 26th 2014

For most people creating a wallet is the single most important step on their journey into Bitcoin. At MultiBit we have worked hard to make this process as smooth as possible while not sacrificing on security.

MultiBit HD Sneak Preview

March 17th 2014

We've been asked quite a few times about progress with MultiBit HD, the replacement for the current MultiBit Classic. To show that we're hard at work for the Bitcoin community here is a sneak preview of MultiBit HD and some of its many features. If you'd like to join in with testing (and get your name on the contributors list) please get in touch through our support page.

MultiBit downloads reach 1.5 million

March 10th 2014

We were asked recently how many downloads there had been of MultiBit since its inception back in April 2011. To answer this Jim went off into the website download stats archive (and various Tweets of important milestones) and discovered that MultiBit has been downloaded over 1.5 million times.

MultiBit and Denial of Service attacks

February 27th 2014

Over the past few months we at MultiBit have noticed a few Denial of Service (DoS) attacks taking place against our servers.

Amsterdam Bitcoin Conference 2013 (MultiBit and Trezor)

September 27th 2013

Over the course of 3 days in September 2013 the MultiBit team attended the European Bitcoin Conference in Amsterdam.

How to check digital signatures

July 24th 2013

Bitcoin applications are not like ordinary applications - they handle real money and as such need to be treated with more security precautions than you would otherwise use.