# Raspberry Pi Imager: the official SD card writer, and what it does beyond copying an image

> Raspberry Pi Imager is the official imaging utility for Raspberry Pi boot media, shipped as a Qt application for Windows, macOS and Ubuntu and as an apt package on Raspberry Pi OS. Its value is less the write itself than the pre-boot configuration it applies to the card, and its telemetry default is the part most teams will want to decide about before rollout.

**raspberrypi/rpi-imager** — The home of Raspberry Pi Imager, a user-friendly tool for creating bootable media for Raspberry Pi devices.

- Repository: https://github.com/raspberrypi/rpi-imager
- Website: https://www.raspberrypi.com/software
- Stars: 2,612 · Forks: 449
- Language: C++
- License: NOASSERTION
- Published: 2026-09-28 · Updated: 2026-09-28 · Language: en
- Canonical page: https://hysenlabs.com/projects/raspberrypi-rpi-imager

## What Raspberry Pi Imager is for, and who actually needs it

The problem is the gap between downloading a Raspberry Pi OS image and having a board that boots into a usable state. Writing a raw image to an SD card is a solved operation on every platform, but a freshly written Raspberry Pi OS card boots into first-run setup: you still need a display and keyboard, or a serial console, to set a hostname, create a user, join a Wi-Fi network and pick a locale. Raspberry Pi Imager closes that gap by applying those settings to the image during the write, so the card is configured before it is ever inserted into the board.

The audience is correspondingly narrow. It is for people preparing boot media for Raspberry Pi 1, 2, 3, 4B, 5, Zero, Zero W, Zero WH and Zero 2 W class hardware, which is what the repository topics list. It is also for anyone who runs a fleet of those boards and wants a consistent starting state rather than a per-board manual setup. It is not a general purpose disk imager, and the README never presents it as one. The official documentation link in the README points at the getting-started page rather than a standalone manual, which tells you the project treats itself as part of the Raspberry Pi onboarding path, not as an independent utility.

## How the imaging and pre-configuration flow works

The application is written in C++ with a Qt front end, and the repository layout reflects that split: a qt/ directory for the UI layer and a src/ directory for the rest, plus a .qmllint.ini at the top level indicating QML is linted as part of the build. The README describes the product as a Raspberry Pi Imaging Utility and ships a screenshot.png at the repository root, which is the extent of the interface documentation in the repository itself.

Two mechanisms in the README are worth separating from the write path. The first is the image repository. If the application is started with --repo followed by a URL, it uses that URL as its image source instead of the default one. The README's stated use case is a second start menu shortcut carrying the parameter, so a user can keep both a stock catalogue and a private one without rebuilding anything. The second is telemetry, which is on by default. The README lists exactly what is collected: the URL, category and observed name of the selected OS, the Imager version, a flag for Desktop versus Network Installer use, the host OS version, architecture and locale name. When running as part of the Network Installer it also collects the revision of the Raspberry Pi it runs on. The README states the receiving service is hosted on Heroku, stores an incrementing counter per URL, OS name and category per day in a Redis Sorted Set in the eu-west-1 region, associates no personal data with those counts, and retains the last 1,500 requests for one week. Aggregate figures are published at rpi-imager-stats.raspberrypi.com.

That is a more specific disclosure than most desktop tools give, and it is also the design decision most likely to matter to an organisation. The counters are not tied to a person, but the selected OS URL and host locale still describe what a machine is being used for, and the collection is opt-out rather than opt-in.

## Installing Raspberry Pi Imager on Raspberry Pi OS, Ubuntu, macOS and Windows

The README gives one package manager command, for Raspberry Pi OS, and points everyone else at the Raspberry Pi downloads page for Windows, macOS and Ubuntu builds. There is no published apt repository for other Debian derivatives in the README, so on Ubuntu the documented path is the download, not apt. The README does not list Fedora, Arch or Kali installation methods; the related searches show people asking about those, but nothing in the repository answers them, so treat any such instructions as coming from outside this project.

On Raspberry Pi OS the README's instruction is a single apt line:

```bash
sudo apt update && sudo apt install rpi-imager
```

After that completes, rpi-imager is on the PATH and can be launched from the desktop menu or a terminal. On Windows, macOS and Ubuntu, download the latest version from the Raspberry Pi downloads page and run the installer for your platform.

The first real use is to write a card with settings already applied. Launch the application, pick your board and OS from the catalogue, select the target SD card or USB device, then open the settings dialog before writing. The README documents the settings entry point through its telemetry instructions: choose App Options, and the relevant toggle is labelled "Enable anonymous statistics (telemetry) collection". Untoggle it and press Save if you do not want the metrics described above to be sent. The same App Options area is where the pre-boot configuration for hostname, user, Wi-Fi and locale is set, and those values are what make the card boot ready rather than boot blank.

If you run your own image catalogue, the README gives the parameter to use. Its own phrasing is that if the application is started with "--repo [your own URL]" it "will use a custom image repository", and it suggests creating a second start menu shortcut carrying the parameter so both catalogues remain available.

## Where Raspberry Pi Imager is the wrong tool

The clearest limitation is scope. The README describes a Raspberry Pi imaging utility, not a general purpose one, and nothing in the repository suggests support for writing arbitrary distributions to arbitrary media. If you need to flash an x86 image, a router firmware file or a non-Raspberry-Pi SBC image, this is not the project to reach for, and the README does not claim otherwise.

Platform coverage is the second boundary. The README names Windows, macOS and Ubuntu as download targets, plus Raspberry Pi OS through apt. Ubuntu is listed as a first-class download, but Debian, Fedora, Arch and Linux Mint are not mentioned at all. The related searches show demand for those distributions, which makes the silence conspicuous rather than accidental. If your engineering workstations run Fedora, you are outside the documented install path and should expect to build from source per CONTRIBUTING.md rather than install a package.

Telemetry is the third, and it is a policy question rather than a technical one. Collection is on by default. The README states the data is anonymous and aggregate, and it publishes the aggregate view, but an organisation with a rule against default-on outbound reporting will still need to change a setting on every installation. The README documents the UI toggle and does not document a command line flag or configuration file for disabling it, so a scripted fleet-wide opt-out is not something the README supports.

## Raspberry Pi Imager against dd, balenaEtcher and the Network Installer

The obvious alternative is dd, or its Windows equivalents. The difference is not the write, it is everything around it. dd writes bytes and stops; it has no catalogue, no board selection, no pre-boot configuration and no verification step described in this README. If you already have a fully prepared image and a script that writes it, dd is smaller and has no telemetry surface at all. If you are starting from a stock Raspberry Pi OS download and want a configured card, dd leaves you doing the configuration on the board.

balenaEtcher is the closer comparison, since it is also a graphical card writer with a catalogue. Raspberry Pi Imager's distinguishing feature is the Raspberry Pi specific pre-configuration applied during the write, which a general purpose writer does not do. The trade-off runs the other way on breadth: a general purpose writer will flash images this project was never built for.

The third comparison is internal. The README mentions a Network Installer mode, and the telemetry section says it collects the revision of the Raspberry Pi it is running on when used that way. That is a different workflow from writing a card on a desktop: the board installs over the network rather than from prepared media. If your boards are already networked, that path avoids the card entirely, and it makes the desktop application unnecessary for that specific case.

## Maintenance cadence, release packaging and the licence question

The repository is not archived, and the last push was on 2026-09-24. Recent releases are v2.0.11-rc1 on 2026-07-08, v2.0.11 on 2026-08-14 and v2.0.11.1 on 2026-08-17. The pattern is a release candidate roughly five weeks before the stable tag, then a point release a few days later, which is a normal cadence for a desktop application with a graphical installer. Upgrade cost is low for end users on Raspberry Pi OS, where the apt package tracks the distribution, and for Windows and macOS users, where the downloads page is the update channel. There is no documented auto-update mechanism in the README.

The part worth reading before you build anything is the release tooling. The Makefile documents a rootless, multi-architecture chroot build that produces AppImages and .deb packages, with targets release-source, release-arm64, release-amd64, release-armhf, release-appimages-% and release-repo. Its header comment gives the setup step and the single entry point:

```bash
cp debian/release.conf.example debian/release.conf
make release
```

The comment states the build is rootless and that chroots are created automatically, and release-repo defaults RELEASE_ARCHES to "amd64 arm64 armhf". The separate doc/linux-build.md covers the Linux pipeline in more detail. If you package this internally, that is the path to read, not CONTRIBUTING.md, which covers building the application itself.

On licensing, the repository carries a license.txt at the top level but the project metadata reports the licence as NOASSERTION, which means no standard licence identifier was detected. That is a signal to open license.txt and read it directly rather than assume an OSI licence. Nothing here is legal advice, and if you intend to redistribute a modified build or ship it inside a product, the file is the only authoritative statement available.

## Conclusion

Adopt Raspberry Pi Imager if you prepare Raspberry Pi boot media and want hostname, user, Wi-Fi and locale set before first boot, or if you want a local image repository behind a --repo URL. Do not adopt it if you need to flash arbitrary non-Raspberry-Pi images as a general purpose writer, or if anonymous telemetry to a third-party hosted service is unacceptable and you cannot untoggle it. Verify first that your target host is one of the three documented platforms, that your distribution's rpi-imager package is current enough for your board, and whether your deployment needs the telemetry opt-out applied per machine through App Options.

## FAQ

### What does Raspberry Pi Imager do?

It is the official Raspberry Pi Imaging Utility for creating bootable media for Raspberry Pi devices, per the repository description. Beyond writing the image, it lets you apply pre-boot settings such as hostname, user, Wi-Fi and locale through App Options before the card is used.

### Is Raspberry Pi Imager safe?

The README documents that it collects anonymous metrics by default, listing the selected OS URL, category and name, the Imager version, host OS version, architecture and locale name, and that the receiving service stores only incrementing counters in a Redis Sorted Set with no personal data associated. You can turn collection off in App Options by untoggling "Enable anonymous statistics (telemetry) collection" and pressing Save.

### Is there an alternative to the official Raspberry Pi Imager?

Yes. dd and general purpose graphical writers such as balenaEtcher will write the same image bytes, but they do not apply Raspberry Pi specific pre-boot configuration during the write. Raspberry Pi Imager's own Network Installer mode is also an alternative path, installing over the network instead of from prepared media.

### Can I install Raspberry Pi OS without an imager?

The README does not describe a manual installation path, and it points to the official documentation for install and use instructions. Any method other than the Imager or the Network Installer would come from outside this project's documentation.

### How do I install Raspberry Pi Imager on Ubuntu?

The README lists Ubuntu alongside Windows and macOS as platforms where you download the latest version from the Raspberry Pi downloads page. It does not give an apt command for Ubuntu; the only apt instruction in the README is for Raspberry Pi OS.

### How do I use Raspberry Pi Imager with a custom image repository?

Start the application with the --repo parameter followed by your own URL, and it will use that custom image repository instead of the default one. The README suggests creating a second start menu shortcut carrying that parameter so both catalogues stay available.

## Sources

- [Issues](https://github.com/raspberrypi/rpi-imager/issues)
- [Project website](https://www.raspberrypi.com/software)
- [raspberrypi/rpi-imager on GitHub](https://github.com/raspberrypi/rpi-imager)
- [README](https://github.com/raspberrypi/rpi-imager/blob/main/README.md)
- [Releases](https://github.com/raspberrypi/rpi-imager/releases)

---

Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/raspberrypi-rpi-imager