MultiBit Classic Download

Download MultiBit Classic v0.5.18 for Windows, Mac, and Linux. The original lightweight Bitcoin wallet.

About MultiBit Classic

MultiBit Classic (versions 0.5.x) was the original MultiBit wallet, released in 2011. It was one of the first "lightweight" Bitcoin wallets that didn't require downloading the entire Bitcoin blockchain, making it accessible to everyday users.

Unlike its successor MultiBit HD, Classic used a different key storage system where each Bitcoin address has its own private key. This means recovery requires access to the original wallet files containing these individual keys.

Key Features of MultiBit Classic

Individual private keys — Each address has a separate private key stored in .key files
Wallet files — Transaction history stored in .wallet files
SPV technology — Simplified Payment Verification for fast sync
Multiple wallets — Could manage several wallets simultaneously
Export functionality — Private keys can be exported in various formats

Download MultiBit Classic v0.5.18

Version 0.5.18 was the final public release of MultiBit Classic before the project transitioned to MultiBit HD. The installers below are mirrored from the original multibit.org release on the Internet Archive.

Windows

multibit-0.5.18-windows-setup.exe

Download .exe

macOS

multibit-0.5.18.dmg

Download .dmg

Linux

multibit-0.5.18-linux.jar

Download .jar

Files are hosted on web.archive.org from the original multibit.org release. Verify the file before running it on a system that holds Bitcoin.

MultiBit Classic File Types

MultiBit Classic uses a few different file types. Recovery depends on knowing which is which:

File Extension	Purpose	Recovery Value
`.wallet`	Main wallet file containing your private keys, addresses, and transaction history	Critical — contains your keys
`.key`	Exported private key file	Critical — contains your keys
`.info`	Wallet description and metadata	Low - informational only
`multibit.properties`	Application settings	Low - settings only

You only need one: Either a .wallet file or an exported .key file is enough to recover your Bitcoin — you don't need both. If you have the .wallet file, the private keys are already inside it.

Installation Instructions

Windows Installation

Download the Windows installer (.exe file)
Right-click and select "Run as administrator"
Follow the installation wizard
Launch MultiBit from the Start menu or desktop shortcut

macOS Installation

Download the macOS disk image (.dmg file)
Double-click to mount the disk image
Drag MultiBit to your Applications folder
Right-click and select "Open" (required for unsigned apps)
Click "Open" in the security dialog

Linux Installation

Ensure Java is installed: java -version
Download the Linux JAR file
Make it executable: chmod +x multibit-0.5.18-linux.jar
Run: java -jar multibit-0.5.18-linux.jar

Default Wallet Locations

MultiBit Classic stored wallet files in these default locations:

Windows: C:\Users\[Username]\AppData\Roaming\MultiBit\

macOS: /Users/[Username]/Library/Application Support/MultiBit/

Linux: /home/[Username]/.multibit/

Recovery Without Running MultiBit

If MultiBit Classic won't run on your system, you can still recover your Bitcoin by extracting private keys directly from the wallet files. This approach works even if:

Your operating system is too new for MultiBit
MultiBit won't sync with the network
The application crashes on startup
You don't want to install old software

See our wallet file recovery guide for detailed instructions on extracting keys from .wallet and .key files.