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Duecki1/CalibRaw

A free, open-source RAW photo editor for Linux, Android, Windows and macOS with GPU processing, masks and offline AI tools.

Open-source alternative to:Adobe LightroomCapture One

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306
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20
Open issues
8
Last commit
yesterday

What is it?

CalibRaw is a RAW photo editor that covers the full development workflow: sliders, tone curves, color grading, Point Color, lens correction and masks. Edits are non-destructive and stored as lightweight .calibraw JSON sidecar files next to your photos. Processing runs on the GPU through Vulkan, Direct3D 12 or Metal, using wgpu and WGSL compute shaders.

The app includes local AI tools that run on the device after a one-time, opt-in model download. These cover subject, sky, depth and click-to-select object masks, AI Remove for object removal, and RawNIND denoising for Bayer and X-Trans files. Creative effects such as fog, rain, relighting, glow and wet surfaces can be applied to the whole photo or inside a mask.

RAW decoding relies on LibRaw and Rawler, covering a wide range of camera models, and JPEG, PNG, HEIC and TIFF files are also supported. An Android build shares the same engine and sidecar format, and a headless CLI supports batch export to formats such as JPEG XL.

Key features

  • 01Non-destructive edits saved as .calibraw sidecar files
  • 02GPU processing through Vulkan, Direct3D 12 and Metal
  • 03Offline AI masks for subject, sky, depth and objects
  • 04AI Remove and RawNIND denoising run locally
  • 05Bayer, X-Trans and Dual demosaicing options
  • 06Android app sharing the desktop engine

Use cases

  • Editing RAW photos on a Linux desktop without a subscription
  • Retouching or removing objects from photos on an Android phone
  • Denoising high-ISO RAW files with on-device AI
  • Batch exporting edited RAW files from the command line

Quick start

  1. 1

    Download CalibRaw from Flathub or the latest GitHub release

  2. 2

    On Android, get it from F-Droid or install the APK from the latest release

Things to know

  • The editor needs a Vulkan, Direct3D 12 or Metal GPU driver, and OpenGL-only GPUs are not supported.
  • On Linux, GPUs without a Vulkan driver fall back to the slow lavapipe software renderer.
  • AI models are downloaded on first use, after you agree to the download.

In collections

Android apps & phone toolsComputer vision libraries & tools

Topics

#photo-editing#raw#image-processing#gpu-acceleration#rust#offline-ai#photography#android#android-app#editing

FAQ

What is CalibRaw?
A free, open-source RAW photo editor for Linux, Android, Windows and macOS with GPU processing, masks and offline AI tools. CalibRaw is a RAW photo editor that covers the full development workflow: sliders, tone curves, color grading, Point Color, lens correction and masks. Edits are non-destructive and stored as lightweight .calibraw JSON sidecar files next to your photos. Processing runs on the GPU through Vulkan, Direct3D 12 or Metal, using wgpu and WGSL compute shaders.
Is CalibRaw free to use? What license does it have?
CalibRaw is open source under the GPL-3.0 license. Check the license terms before using it in commercial products.
Is CalibRaw still maintained?
Actively maintained. The last commit to CalibRaw was on Nov 6, 2026.
What can I use CalibRaw for?
Editing RAW photos on a Linux desktop without a subscription Retouching or removing objects from photos on an Android phone Denoising high-ISO RAW files with on-device AI Batch exporting edited RAW files from the command line
How do I install CalibRaw?
Download CalibRaw from Flathub or the latest GitHub release On Android, get it from F-Droid or install the APK from the latest release
Where can I get CalibRaw?
The source code and installation instructions are on GitHub: https://github.com/Duecki1/CalibRaw

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