Fatdog64 Linux is a small yet versatile 64-bit multi-user Linux distribution. Originally created as a "fatter" (=more built-in applications) derivative of Puppy Linux, Fatdog has grown to become an independent, mature 64-bit Linux distribution while still keeping true to Puppy Linux spirit: small, fast and efficient.

At around ~600MB, Fatdog boots up to a complete desktop environment ready for use. Most applications needed for everyday use are already included.

And many more pre-installed, with more in its package repositories.

Fatdog is versatile: use it as a Live CD (or Live USB), or install it. Installation requires *no* re-partitioning. Fatdog can store its settings in your existing partition: FAT, Ext2/3/4, NTFS partitions are supported, as well as CIFS shares and LVM and mdadm partitions; on your harddisk, USB flash drive, or DVD+RW. PXE-booting Fatdog is easy - only two files are required.

Fatdog ISO is a dual-isohybrid ISO:

In either case, the resulting CD/DVD or USB flash drive will boot on standard systems, UEFI systems, and systems with Secure Boot enabled (Windows 8 and 10).

A big thank you goes to University of North Carolina at Chapel Hill for www.ibiblio.org and for hosting Fatdog64!


Minimum requirements: 64-bit x86-64/AMD64 CPU and 1GB RAM. Most Intel and AMD CPUs produced after 2008 support 64-bit (including many Intel Atoms).

Click here for info on the latest release. Click here to download the ISO file and burn your own CD (or here for latest pre-releases).

Also check out FatdogArm, a port of Fatdog64 to the ARM platform.


Fatdog packages come in two flavours:

You can also get all the source packages used to build Fatdog.


Fatdog primary site of distribution is hosted by ibiblio.org: http://distro.ibiblio.org/fatdog/web/ .
ibiblio.org has mirrors around the world. Click here to find a mirror near you.

Popular mirrors:


Most of Fatdog64's documentation is found here, applicable to the latest version of Fatdog. The same information is also included in your copy of Fatdog, located in file:///usr/share/doc/faqs/faq.html, or by clicking the "Help" icon on the desktop.

You can also get the Beginner's Guide, courtesy of smokey01.


Fatdog64 doesn't have its own forum, instead it piggybacks on Puppy Linux Discussion Forum, and you can find Fatdog-related posts on its own section.

NOTE: If you need to find older information, you can find it in the old Puppy Linux Discussion Forum. In the old Forum, Fatdog doesn't have a separate section and Fatdog64 posts are usually found in the Puppy Projects subforum. The last version released in the old forum is version 810 and the thread can be found here.


Fatdog has a long history. Click here to to view how Fatdog was started and how it grew as the years passed by.

Fatdog was created by kirk; and is currently maintained by kirk, james, SFR and step.


Fatdog Linux and Fatdog64 Linux is copyright (C) Kirk and James 2008 - 2023, based on derived works from Puppy Linux, copyright (C) Barry Kauler 2003 - 2014 and many other contributors.

Fatdog64 is distributed under GNU General Public License (GPL) Version 2 or later. Note that individual programs and scripts contained in Fatdog may be licensed differently, so please see their descriptions for details.

The original Fatdog64 logo is designed by AFG Sinaulan (forum member "afgs") and is licensed under Creative Commons Attribution Sharealike (CC-BY-SA).

 Notes and Disclaimer

It has come under our attention that there are people and enterprises offering Fatdog64 merchandises (CD, DVD, T-shirts, etc) in various e-commerce websites (Ebay etc).

We would like to note that they do not act on our behalf; we do not endorse them, their products and their activities. We are not affiliated with them at all, and in fact, we don't even know them. Hence, we cannot vouch for their products nor services.

We do not make or sell physical merchandises in any forms (no T-shirt, keychains, etc). We do not sell or otherwise distribute Fatdog64 in physical media in any forms (CD, DVD, USB flash drive, etc). Fatdog64 is officially distributed as soft-copy only, in the form of ISO-hybrid .iso files, which we make available free for all to download without a fee. The only official place to get Fatdog64 soft-copy is from its website and mirrors, as listed above.