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Show HN: Open-source, Lightroom Alternative RAW editor made by photographer

Photographer and developer Duecki1 released CalibRaw 1.4.0, a free, open-source RAW photo editor for Linux, Android, Windows and macOS with no subscription, account or cloud requirement, built over the last 3 months in Rust with wgpu GPU acceleration. CalibRaw offers Lightroom-style develop panels (light, tone curve, color mixer, color grading, detail, optics, masks), non-destructive edits stored in sidecar files, optional AI masks for subject, sky and depth that run locally on the device, and an Android app sharing the same engine as the desktop version; much of the processing math is ported or adapted from darktable. The author states LLMs were used for many parts of the project and is seeking feedback on the workflow.

read1 min views1 publishedNov 2, 2026

Hi, I'm the author of CalibRaw, a free, open-source RAW editor developed for Linux, Android, Windows and macOS. There's no subscription, no account and no cloud.

I know many have been posted in here, but I just wanted to share CalibRaw too. V1.4.0 was just released and includes many improvements. CalibRaw focues on performance and performance, not UI focused.

I'm a photographer, and i built it over the last 3 months because the existing alternatives didn't work for me. The performance was bad, the processing didn't match what I'm used to, or they where just buggy. Darktable is very cool software, but I just wasn't able to work with it.

What it does:

  • Lightroom-style develop panels: light, tone curve, color mixer, color grading, detail, optics and masks

  • Optional AI masks (subject, sky, depth, ...) that run locally on your device

  • Advanced masking workflow

  • Non-destructive: edits live in sidecar files and your originals are never touched

  • GPU-accelerated, written in Rust with wgpu, not a web app

  • Android app using the same engine as the desktop app

  • Effects like glow, fog, relight and more :D

A lot of the processing math is ported or adapted from darktable, and I'm very grateful to its developers. I've been using it for the last 3 months constantly improving it.

I'd really appreciate feedback on how the workflow feels, and what could be improved.

https://github.com/Duecki1/CalibRaw Not affiliated with Adobe. Lightroom is a trademark of Adobe Inc.

For many parts of this project LLM's have been used.

Comments URL: [https://news.ycombinator.com/item?id=50339547](https://news.ycombinator.com/item?id=50339547)

Points: 1

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