A fast, native image viewer for macOS
Designed for quickly opening, reviewing, and adjusting images without the weight of a full photo editor. Uses Metal for rendering, Apple ImageIO for broad format support, and a minimal interface that stays out of the way.
Version 1.0 · Requires macOS with Apple Silicon
Why Monoko?
Everything you need in an image viewer. Nothing you don't.
Instant Image Review
Open an image and move through the folder with the arrow keys.
Native Metal Rendering
Smooth zooming and panning on Apple Silicon Macs.
RAW-Friendly Workflow
Supports system RAW codecs and shows embedded previews while full-resolution images load.
Useful Adjustments
Exposure, contrast, vibrance, sharpness, auto tone, rotation, and mirror.
Real Image Metadata
Inspect camera, lens, exposure, GPS, color space, and pixel dimensions.
Made for Focus
No library import, no account, no timeline, no extra workflow.
Supported Formats
Monoko uses Apple ImageIO, so it supports the image formats available on your macOS system.
Keyboard Controls
Fast, intuitive controls designed for photographers and power users.