Free Photo Editing Software for Linux

The strongest free photo editing setup on Linux pairs darktable or RawTherapee for developing RAW files, GIMP for pixel-level retouching, and digiKam for keeping a growing library in order. All four projects are free and open source, all four run natively on a Linux desktop, and together they carry a photo from the camera card to a finished file without a single paid license.

If you want to compare every platform at once, our guide to the best free photo editing software lines the options up side by side. This article stays on the Linux desktop, and it includes one honest note about Imagen: it is a desktop app for Mac and Windows, and it does not run on Linux.

We would rather say that at the top than let you lose an evening hunting for a Linux installer. Plenty of photographers split their time across more than one computer, though, so there is a sensible way to combine the two worlds, and we cover it near the end.

What a Linux photo setup has to cover

Before comparing programs, list the jobs you need done. A complete setup for photography touches five of them:

1. Importing and sorting a shoot, with ratings, color labels and tags.
2. Developing RAW files, which means exposure, white balance, color, and noise reduction.
3. Local adjustments, such as brightening a face or darkening a sky with a mask.
4. Retouching at the pixel level for dust, distractions and fine cleanup.
5. Exporting JPEG or TIFF files in the sizes and color spaces a client expects.

Linux adds two practical questions on top. One is how your desktop environment handles display color profiles, since an accurate screen matters more than any single program. The other is how comfortable you are installing software through a package manager. Camera makers’ own free tools, such as the ones from Nikon, Canon, Sony and Fujifilm, generally target Windows and macOS, so the open source projects below are the natural home for Linux users.

darktable on Linux

darktable has deep roots in the Linux community, and a Linux photographer will find it feels at home on the desktop. It combines two working areas in one program. The lighttable is a library view where you import, rate, tag and compare photos, and the darkroom is where you develop them, using a stack of modules for exposure, color, tone, detail and noise.

Edits are non-destructive, so your original RAW file is never rewritten. You can restrict a change to part of an image using drawn masks or masks based on color and brightness, and you can save a set of steps and apply it to a whole folder. The price of that depth is a learning curve, because there are many modules and it takes time to learn which ones you actually need. A calm approach works well: start with exposure, color and tone, then add modules only when a photo asks for them.

RawTherapee for detailed RAW control

RawTherapee is a free, open source RAW developer that appeals to photographers who like precise control over how the file is converted. It has a generous set of tools for tone, color, detail and noise, and you can save a group of settings as a processing profile and apply it to other photos. A batch queue lets you send many images to export while you keep working.

Its structure is different from darktable’s. RawTherapee works by browsing folders on disk and does not build a database library, which some photographers find simpler and others find limiting. If you already organize your files in a tidy folder structure, that approach may suit you well. If you prefer a catalog with searchable tags, darktable or digiKam will feel closer to what you want.

GIMP for pixel-level work

GIMP is the usual choice when a photo needs retouching beyond what a RAW developer offers. It brings layers, masks, paths, selections and cloning and healing tools, and it installs easily on most Linux distributions. It does not develop camera RAW files by itself, so the typical route is to finish the RAW stage in darktable or RawTherapee, export a TIFF, and open that file in GIMP.

Searching a gallery by what is in the photos in Imagen

If you are coming from Adobe software and want a closer look at how GIMP, Photopea and Krita handle layered work, our guide to free photo editing software like photoshop goes through each one.

digiKam for large libraries

digiKam is a free, open source photo management program. It is built for libraries that have grown past what a folder tree can handle, with tagging, ratings, color labels, metadata editing and face recognition to help you find people across years of shoots. It also includes basic editing tools. Most photographers use it as the organizing hub and send frames onward to darktable or GIMP when they need deeper work.

Installing on Linux without surprises

Most distributions carry these four programs in their official repositories, which makes installation a single command or a click in a software center. Repository versions sometimes trail the newest release, so some people prefer Flatpak or Snap builds, which can be more current and run in a sandbox. The projects’ own websites explain the supported installation routes, and it is wise to follow those rather than a random tutorial.

A few habits keep a Linux photo machine tidy:

• Install from your distribution, the Flatpak or Snap store, or the project’s own page, and avoid unknown download sites.
• Keep originals in a separate folder, backed up, and let your programs write edits and exports elsewhere.
• Check your display’s color profile once, and recheck after a major system update.
• Keep your RAW developer and GIMP updated, since new camera support often arrives in new releases.

A sample Linux workflow, start to finish

Sort the shoot

Import into digiKam or the darktable lighttable, then rate and tag as you go. Reject the obvious misses early so you spend development time only on frames you might deliver.

Develop the keepers

Open them in darktable or RawTherapee. Settle on one look for the first strong frame, then copy those settings to similar photos so the whole set shares exposure and color.

Retouch the hero images

Export a TIFF for any photo that needs pixel-level cleanup and open it in GIMP. Most shoots need this for a small fraction of frames.

Export for delivery

Output JPEG files at the size the client needs, and keep a high-quality TIFF master for anything headed to print.

Where Imagen fits if you also use a Mac or Windows machine

Here is the honest picture. Imagen runs on Mac and Windows only, so it cannot be part of a Linux-only setup. But many photographers keep a Mac or Windows computer for client work and a Linux machine for personal projects or a favorite open source toolchain, and for them the two can complement each other.

On the machine that runs it, the new Imagen experience turns the heavy first pass of a client shoot into something much shorter. Imagen is becoming an intelligent studio for professional photographers, and it is the same product moving forward, not a different app. The parts that matter most for a busy shoot look like this:

• Every project is one non-linear space. You cull, edit, review and export in any order, and manual culling is free, with your edited photos visible as you cull. AI culling is a separate subscription for pay-as-you-go users and comes with Limitless.
• AI Profiles learn your editing style from your past edits, or you can pick a ready-made profile from the Profile Shop. They run on the photos you select, and results come back in batches as they are ready.
• AI Filters, such as Key Faces and Indoor/Outdoor, narrow a large shoot quickly, and the assistant can find photos and act on them when you describe what you want in words.
• A built-in editor offers manual sliders and a histogram, with quality comparable to Lightroom, so touch-ups do not require another program.

When the work is done, you can export finals from Imagen as JPEG, TIFF or PNG, or continue in Lightroom with your AI edits carried over as XMP. Because the exports are ordinary image files, they open in GIMP or darktable on a Linux computer without any conversion. AI does the heavy first pass, and you stay the one making the creative decisions. The new experience is rolling out gradually as a beta that photographers help shape, and items such as real-time masking are on the roadmap.

Pricing follows the same practical logic. Trying edits is free, pay-as-you-go means a monthly base fee plus a charge per exported photo, and Limitless is a fixed fee. For a deeper look at how free tools compare with each other, see the free photo editing apps guide or browse the full set of photo editing tips.

Choosing your Linux stack

If you want one recommendation, start with darktable for RAW work and add GIMP when a photo needs retouching. Add digiKam if your library is large, and try RawTherapee if you prefer folder-based browsing and tight control over conversion. Give each program a full real project before judging it, because first impressions of open source tools often change once the workflow clicks. When you want to widen the search to other platforms, our overview of free editing options for every system is the place to continue.

Frequently asked questions

What is the best free photo editor for Linux?

It depends on the job, but darktable is the strongest all-round choice for RAW photography on Linux. GIMP covers retouching and layers, digiKam manages large libraries, and RawTherapee suits photographers who prefer detailed control over conversion.

Is darktable good enough for professional work?

Yes, in capability. It offers non-destructive editing, masks, batch export and color management, which are the features professionals rely on. The real cost is the time it takes to learn the module system.

Can I run Imagen on Linux?

No. Imagen is a desktop app for Mac and Windows, and it does not run on Linux, phones, tablets or Chromebooks. Photographers who use Linux often keep a Mac or Windows computer for the client-facing part of their work.

Does GIMP open RAW files on Linux?

Not on its own. GIMP expects a RAW developer such as darktable or RawTherapee to process camera files first, after which you can open the exported TIFF or JPEG for retouching.

Working on a Mac or Windows computer for client shoots? Start with a free trial of Imagen at imagen-ai.com and see how a consistent first pass changes your editing week.