LumaView

A fast, minimal native image viewer for macOS.

Open an image and browse the rest of its folder. LumaView keeps the picture in focus, with the everyday controls close at hand.

Download LumaView 1.2.8 · Universal DMG · Website · 简体中文 · 日本語 · Changelog

macOS 13+ · Intel + Apple Silicon · Universal DMG · ~2 MB

LumaView in use

Open a file	Browse its folder

Highlights

• Browse naturally — open from Finder, choose a file, or drag it in; use ← / → or the toolbar for the previous and next image in the folder.
• See the image clearly — fit, zoom, pan, rotate, and print; the status bar shows the actual zoom level.
• Inspect only when needed — one toolbar button reveals file facts and the EXIF data embedded in the current image, without a separate folder-wide metadata scan or library.
• Open the formats you meet every day — JPEG, PNG, HEIC, GIF, TIFF, BMP, ICO, WebP, PDF, many macOS-supported RAW files, and .sketch previews.
• Built for the Mac — native SwiftUI, English, Simplified Chinese, and Japanese; Light / Dark / System appearance; Intel and Apple Silicon support.

Install

1. Download the Universal DMG.
2. Open it and drag LumaView.app to Applications.
3. Open LumaView, or double-click an image and choose it from Finder's Open With menu.

Make LumaView the default image viewer

In Finder, select an image → press ⌘I → choose LumaView under Open with → click Change All….

The DMG is only the installer. Removing it never removes LumaView or your images; to uninstall later, move LumaView.app from Applications to Trash.

Shortcuts

Action	Shortcut
Open file	⌘ O
Previous / next image	← / →
Zoom in / out	⌘ + / ⌘ -
Fit image	⌘ 0
Rotate left / right	⌘ [ / ⌘ ]
Print current image	⌘ P

Build from source

Requirements: macOS 13+, Xcode 15+, and an Intel or Apple Silicon Mac.

open LumaView.xcodeproj
# Select the LumaView scheme, then press ⌘R.

Before opening a pull request, run:

./Scripts/validate-project.sh

Release packaging, manual QA, and performance baselines are documented in Release guide, QA guide, and Performance baseline.

Feedback and contribution

Found a problem or have an idea? Use the structured bug report or feature request form. See Contributing for development expectations, Privacy for local-data behavior, and Security for responsible disclosure.

LumaView is available under the MIT License. Tabler icon attribution is listed in THIRD-PARTY-NOTICES.md.

Development documentation

Documentation index · Development and validation · Website maintenance.

The official website source lives in website/; docs/ is reserved for maintainer documentation.