7 Best Lightweight Linux Distros for Raspberry Pi

I’ve tested numerous lightweight Linux distros on Raspberry Pi over the years, and some really stand out when it comes to speed and simplicity. If you’re tired of slow systems, here are the ones that worked best for me (and a few I’d avoid).

The best lightweight Linux distros I recommend for Raspberry Pi are Raspberry Pi OS Lite and DietPi, both extremely fast and stable. Ubuntu Server, Alpine, Arch ARM, and piCore are also solid picks depending on your goals.

In this article, I’ll walk you through the top lightweight Linux distros worth trying on a Raspberry Pi. We’ll cover what each one is, why it’s a good fit, and the pros and cons so you can pick the best option for your project.

If you’re looking for inspiration for your next Raspberry Pi project, I’ve put together a list of 75+ ideas with full descriptions, difficulty ratings, and links to tutorials. Whether you’re a beginner or more advanced, there’s something here for you. Grab the list for free here!

Raspberry Pi OS Lite

Strip it down: the fastest way to run Raspberry Pi officially.

The official Raspberry Pi OS is available in three different versions: Full, Desktop (default), and Lite. Among these, Raspberry Pi OS Lite is designed as a lightweight alternative to the default OS. It is a simplified version of Raspberry Pi OS that includes only the essential components.

Raspberry Pi OS Lite is a command-line-based operating system and does not come with a pre-installed desktop environment. While it is possible to install a desktop environment on Raspberry Pi OS Lite, the system is primarily designed for use cases that do not require a graphical interface.

You can easily install Raspberry Pi OS Lite through the official Raspberry Pi Imager. You can find the Lite version by navigating to Choose OS > Raspberry Pi OS (other) > Raspberry Pi OS Lite.

Raspberry Pi OS Lite is a lightweight operating system specifically designed for the Raspberry Pi ecosystem. It is extremely easy to install and comes pre-packed with all the necessary packages like raspi-config.

Although Raspberry Pi OS Lite is not the most lightweight option on this list (since it is based on Debian), it is the most beginner-friendly option, with the added advantage of official Raspberry Pi support.

Ubuntu Server

All the power of Ubuntu, without the bloat.

Suppose you are not focused on making your OS as lean as possible and prefer something familiar, mainstream, and with good long-term support. In that case, Ubuntu Server is another option to consider.

Ubuntu Server is a flavor of the well-known Ubuntu OS. Similar to how Raspberry Pi OS Lite is the stripped-down version of Raspberry Pi OS Desktop, Ubuntu Server is the stripped-down version of Ubuntu OS.

Ubuntu Server is also primarily a command-line-based OS. On first boot, you will be greeted with a simple text-based login prompt. You can use the familiar Debian-based instructions to navigate the system.

You can also choose to manually install a desktop environment on top of your Ubuntu Server. However, in my opinion, the system can then no longer be considered as a lightweight option.

Ubuntu Server is extremely easy to install; you can do so using the Raspberry Pi Imager itself. To do so, navigate to Choose OS > Other general-purpose OS > Ubuntu > Ubuntu Server 25.04.

Ubuntu also provides a Long-Term Support (LTS) version. The LTS variant is guaranteed to receive support and security updates for up to five years. It emphasizes stability and is ideal for servers and production environments, where reliability is more critical than having the latest features.

Ubuntu Server may not be the lightest operating system on this list, but it makes up for this with strong long-term support and regular security updates. For users who are already familiar with the Ubuntu ecosystem, it can be very beginner-friendly.

Therefore, if you are looking for a lightweight yet reliable operating system that prioritizes regular security updates, then Ubuntu Server can be a great option.

DietPi

When every megabyte matters, DietPi delivers.

DietPi is another lightweight OS that is tailor-made for the Raspberry Pi ecosystem. It has an even smaller footprint when compared to Raspberry Pi OS Lite (less than 200 MB once installed), and is highly customizable.

Unlike other operating systems on this list, DietPi offers a customization wizard after installation, allowing you to select and install only the programs you need.

You can configure it according to your requirements, and the setup will then install all the requisite software. It can be configured to work both with and without a desktop environment.

DietPi includes various custom scripts for system management, such as dietpi-config, which serves as an alternative to raspi-config. Additionally, several other useful scripts are also available.

While DietPi may not be as beginner-friendly as Raspberry Pi OS Lite, it serves as an excellent middle ground for those seeking a leaner operating system. It offers a wide range of customization options to cater to various needs without being overly complicated.

Quick note: If you find it hard to remember all these commands, I’ve put them all on a one-page cheat sheet. You can download it for free here so you have it handy whenever you're working on a project.

Alpine Linux

So small it feels like magic (but not for beginners).

Alpine Linux is another OS that is designed to be an ultra-low-resource OS. Unlike the previously mentioned OSes, Alpine Linux is not based on Debian; instead, it is based on the musl libc and BusyBox libraries.

This selection of libraries allows Alpine Linux OS to have a minimal footprint. A base install takes up only 50MB of space.

By default, Alpine Linux also runs in a command-line interface. On the first boot, you log in as root and then configure the system according to your requirements.

You can use the setup-alpine script to configure your system. This script walks you through all the essential configuration steps to prepare your system for use.

Alpine Linux can be configured to operate in a diskless mode. In this mode, the system is loaded into memory and runs entirely from RAM. Any changes made, such as user files and settings, will be lost when the system is rebooted. To make changes permanent, you can issue a command to “freeze” the system in a specific state.

If you are accustomed to the Debian ecosystem and its commands, then using Alpine Linux involves a steep learning curve. For example, to run a program as a superuser, you use the prefix ‘doas’ instead of ‘sudo’.

Alpine Linux does not use the APT package manager either. Instead, Alpine Linux uses APK as its default package manager, although the syntax is similar to APT.

Alpine Linux works great with Docker. Many Docker containers are actually native to Alpine Linux, as it’s often used as the base for images.

Alpine Linux is also available through the Raspberry Pi Imager. You can find it under Choose OS > Other general-purpose OS > Alpine Linux.

Using Alpine Linux can be challenging due to its unique ecosystem choices. However, the benefits include an extremely efficient and lean system that can be tailored for various use case scenarios.

Overall, I do not recommend Alpine Linux for beginners. However, if you know what you are doing or are up to the challenging learning curve, then Alpine Linux can be a great option.

Arch Linux ARM

Build it your way: total control of your Pi.

Arch Linux is a rolling-release distribution of the Linux operating system. A rolling-release OS provides a continuous stream of updates, meaning the system is always on the latest version with new software, features, and bug fixes, rather than requiring major version upgrades.

The main version of Arch Linux is made for x86 and x64 systems, and is not supported on Raspberry Pi OS. However, the Arch Linux ARM version is also available, which can run on Raspberry Pi.

The design philosophy of Arch Linux is centered around a DIY approach. The Setup procedure for Arch Linux involves:

• Booting Raspberry Pi from a USB with Raspberry Pi OS Lite Image (or any other Linux image that you are comfortable with).
• Configure all individual elements of your operating system, such as partitions.
• Download the Arch Linux image file and extract the files to their respective destinations.
• Reboot into Arch Linux and configure individual components of the system.

These steps only provide a basic Linux command-line interface with no additional programs, except for the package manager (pacman). You have to install and configure each component manually.

Installing Arch Linux gives the impression of designing your own Linux distribution without relying on pre-written scripts. This process demands a comprehensive understanding of each component of an operating system.

Fortunately, Arch Linux has well-written documentation and an active community eager to help you understand how these components work and how to configure them.

The result is a highly customized system, where you know exactly what programs are installed and their functions. Anything that is installed is manually installed by you (no unexpected blots).

Arch Linux also offers the AUR (Arch User Repository), a vast, community-driven repository of software packages developed and maintained by Arch users. This repository includes thousands of applications, scripts, and tools that are not found in the official repositories.

If you appreciate the features of Arch Linux but find its installation and setup process daunting, you might want to consider Manjaro Linux. Manjaro is based on Arch Linux and is designed to make it more accessible for beginners.

https://www.youtube.com/watch?v=l9ky_cAy-dQ

Although extremely challenging to set up, the overall experience of using Arch Linux is rewarding. It offers a highly customizable OS and an excellent opportunity to understand the inner workings of a Linux OS.

If you are seeking an operating system that offers extensive customization and want to deepen your understanding of Linux, Arch Linux ARM is an excellent option for you.

While it comes with a challenging learning curve, it provides benefits such as access to the latest bleeding-edge packages and the Arch User Repository (AUR).

Void Linux ARM

Lean, mean, and Systemd-free.

Void Linux is another lesser-known lightweight option for the Raspberry Pi. Unlike most distributions on this list, it does not utilize systemd; instead, it employs runit as its init system.

runit is a lightweight init system designed for speed and simplicity in managing services. Unlike systemd, it doesn’t aim to handle dynamic environments, making it a straightforward and minimal solution.

Installing Void Linux is simple if you download the prebuilt ARM image from the Void Linux website. Just flash it onto an SD card using Raspberry Pi Imager, balenaEtcher, or the `dd` command, and you’re ready to boot your system.

On first boot, Void Linux drops you into a command-line environment with only the essentials installed. You’ll likely need to add networking tools and set up SSH manually if you plan to run it headless.

Void Linux is a rolling-release distribution, similar to Arch Linux ARM. This means you always get the newest software without waiting for major updates.

Another key difference is how Void handles its core system libraries. It’s built with musl libc support as an alternative to the traditional glibc. This makes it even leaner.

Because of its design choices, Void Linux often feels snappier and more responsive than Debian-based systems like Pi OS Lite or DietPi. There’s no extra overhead, and the system gives you exactly what you put into it—no more, no less.

That said, Void Linux lacks the same level of beginner support and community tutorials as Ubuntu or Raspberry Pi OS. It’s better suited for users who already have some Linux knowledge and want a clean system to build on.

For example, due to a lack of good documentation, it took me a couple of hours to get familiar with the system, enable network connectivity, and install the required packages while testing for this tutorial.

Void Linux is an excellent fit if you want something different from the mainstream choices. It’s lightweight like Alpine, but with a broader package selection. It’s rolling-release like Arch, but easier to install. And unlike DietPi or PiOS Lite, it provides a system that feels unique, fast, and entirely in your control.

Tiny Core Linux (piCore)

An operating system that fits in your pocket.

One of the lightest distributions that I recently discovered is piCore. It is based on the Tiny Core Linux project. piCore only consists of the core Linux kernel coupled with only the most necessary packages.

You can read more about the Tiny Core Linux project on their website.

Tiny Core Linux is designed to run entirely from RAM. Therefore, there is no conventional installation. To run piCore, you can download a compressed archive that can be installed on an SD card using the traditional methods.

However, this SD card is only used for booting up. You can have a peek inside the folder structure of your SD card, and you will notice that no conventional Linux file structure is visible there.

During boot, the system uses the files in the memory card to create a file system in RAM, and the entire system runs from RAM only.

By default, nothing that you do on your piCore is persistent. Every time you reboot, you will start from scratch, i.e., any software you have installed will no longer be installed. To make things persistent, you need to create scripts and run them on every boot.

Upon first boot, you are dropped into a command-line interface.

You must install each component of your operating system individually. This can be done by using the tce-load command:
tce-load -wi <package name>

Once you have installed the program, you need to add it to the /etc/sysconfig/tcedir/onboot.lst file so that piCore knows what programs to load when it boots up.

Finally, to make these changes persistent, you have to run this command:
filetool.sh -b

This command updates the mydata.tgz file on your boot partition to reflect the changes that you made to any file.

piCore is a minimalist Linux experience with no default features, requiring manual configuration of every aspect. Users must also ensure these changes are persistent for automatic loading on boot, which can be challenging for beginners.

However, for someone looking for a highly minimalist experience, piCore can be a great option. Additionally, for the niche use case where you want your Raspberry Pi to perform a single specific task, it can be a great choice.

Want even more ideas? I put together a free resource with over 75 Raspberry Pi project ideas, each with a quick description, tutorial link, and hardware requirements. Whether you’re just starting out or looking for something to do this weekend, this list will keep you busy for a while. Just click here to get instant access.

Choosing the correct lightweight Linux distribution for your Raspberry Pi really depends on your balance of simplicity, flexibility, and performance needs. For most users, Raspberry Pi OS Lite and DietPi offer the best mix of stability and ease of use.

Advanced users may prefer the customisation of Arch, Void, or piCore. No matter your choice, each of these distros can help you unlock more performance from your Pi by keeping it lean, fast, and purpose-built.

Whenever you’re ready, here are other ways I can help you:

Test Your Raspberry Pi Level (Free): Not sure why everything takes so long on your Raspberry Pi? Take this free 3-minute assessment and see what’s causing the problems.

The RaspberryTips Community: Need help or want to discuss your Raspberry Pi projects with others who actually get it? Join the RaspberryTips Community and get access to private forums, exclusive lessons, and direct help.

Master your Raspberry Pi in 30 days: If you are looking for the best tips to become an expert on Raspberry Pi, this book is for you. Learn useful Linux skills and practice multiple projects with step-by-step guides.

Master Python on Raspberry Pi: Create, understand, and improve any Python script for your Raspberry Pi. Learn the essentials step-by-step without losing time understanding useless concepts.

You can also find all my recommendations for tools and hardware on this page.