Raw Viewer

A fast, keyboard-driven RAW photo viewer and non-destructive editor for macOS. Browsing a full shoot feels like flipping JPEGs.

Download for macOS View on GitHub

macOS 13+ · Apple silicon · Signed & notarized · MIT

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Showcase

Develop, before and after

Staged decode pipeline: instant preview, edit quality, then 100% — with forward preloading and near-zero idle CPU.

Raw Viewer before/after compare view with develop panel

Before / After split CR2 · 153 photos · L2 100%

Features

Everything a shoot needs, nothing else

Fast RAW browsing

Staged decode (preview → edit quality → 100%), forward preloading of upcoming photos, near-zero idle CPU on large folders.

Non-destructive develop

White balance, tone curve, HSL, noise reduction, sharpening, lens correction, effects, crop — originals are never touched.

GPU pipeline

WebGL2 renderer with an experimental WebGPU backend, including compute-shader noise reduction.

Culling workflow

Star ratings, pick/reject flags, color labels, filters, RAW+JPEG pairing, grid view and slideshow.

Export

Batch JPEG/PNG/TIFF (8/16-bit) and DNG, edit presets, copy and paste settings between photos.

Localized

English, 한국어 and 日本語 — fully translated interface with remappable shortcuts.

Usage

Install once, fly on keys

Getting started

Download the DMG

Grab the latest release from GitHub — signed and notarized for Apple silicon.

Drag into Applications

Open the DMG and drop Raw Viewer into your Applications folder.

Open a folder of RAWs

Drag a file or folder onto the window. Updates arrive through the built-in updater.

Essential shortcuts

← →Previous / next photo 0–5Star rating P / X / UPick / reject / clear flag GGrid view CCrop YBefore / after split TabEdit panel FFullscreen ⌘⇧PCommand palette

Get started

Your shoot is waiting

Free and open source under MIT. One DMG, no accounts, no telemetry.

Download for macOS Star on GitHub

CR2 · CR3 · ARW · NEF · NRW · RAF · ORF · RW2 · PEF · X3F · DNG
JPEG · PNG · TIFF · HEIC · AVIF · WEBP · BMP · GIF