Download Charles
Please fill in the following required fields:<br />The OS version to download
Download the latest version of Charles below. Version 3.X of Charles is a free upgrade for all registered users.
IMPORTANT NOTE Charles 3.4 changes the default behaviour of SSL in Charles to opt-in rather than opt-out. You must now opt-in each site you wish to enable for SSL proxying. Read more.
System Requirements
Charles is a Java application, it requires version 1.4 or later of the JRE or JDK from Sun. You probably already have the JRE or JDK on your computer as it comes with many operating systems. When you try to run Charles it will notify you if you don't have the necessary software.
Download
The latest version of Charles is 3.6.5. Read the Release Notes.
Windows 32 bit (msi, 7.4 MB)
Windows 64 bit (msi, 7.5 MB)
Requires a 64 bit Java Runtime Environment (NB: choose the Windows x64 platform)
Mac OS X (zip, 7.9 MB)
Universal binary. Compatible with Mac OS X 10.3 - 10.7.
Linux / UNIX (tar.gz, 6.1 MB)
Or use the Charles Proxy APT repository for Debian-based Linux distributions.
Mozilla Firefox add-on
Charles requires an add-on in Firefox to autoconfigure Firefox's proxy settings. Charles will automatically prompt you to install the add-on when you run Charles. If the add-on is not automatically installed, you can manually activate Mozilla Firefox Proxy in the Proxy menu. If all else fails, you can download and install the add-on manually.