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Download Charles

The latest version of Charles is 4.0.2. Read the Release Notes.

Paid Upgrade

Charles 4 is a major update to Charles 3, and it is a paid upgrade. Please download a trial of Charles 4; we think you're going to love it! If you would like to continue using Charles 4, you will need to purchase a license upgrade.

You can continue to download the latest release of Charles 3 from the Previous Release page.


Windows 64 bit (msi, 75.1 MB)

Windows 32 bit (msi, 71.1 MB)

Mac OS X (dmg, 51.1 MB)
Compatible with Mac OS X 10.7 - 10.12.

Linux (tar.gz, 12 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. Alternatively you can download and install the add-on manually.