The image viewer and manga reader for macOS.

Built for macOS from the ground up, Rosetone prefetches and decodes ahead, so huge folders and packed archives stay smooth, even straight off your NAS. Spread view, vertical scroll, right-to-left. Whatever you read, it fits.

Native code, native speed.

Written entirely in AppKit. No cross-platform frameworks. Rosetone opens giant folders and network files without breaking a sweat.

Reads ahead, so you never wait.

Rosetone decodes upcoming pages before you reach them. Page turns land instantly, forward or backward, even with high-resolution scans and packed archives.

The whole display is the page.

Made for MacBook Air and MacBook Pro. Full-screen mode fills the entire display by default — the picture runs right up to the camera housing instead of wasting space around it.

Full screen, edge to edge. Every pixel of your MacBook display is the page.

Ten thousand pages, one smooth scroll.

Vertical Scroll view renders long strips with virtual scrolling, so only what is on screen costs memory. Scroll through 10,000 pages without a stutter.

The best viewer for ComfyUI output.

Rosetone reads the generation metadata embedded in your renders, right in the inspector: size, model, LoRAs, and prompt up front, with seed, CFG, steps, sampler, and scheduler alongside. ComfyUI and WebUI metadata are both supported.

Spec

Images	JPEG, PNG, WebP, AVIF, HEIC, JXL, PSD, TIFF, BMP, GIF*
Archives	ZIP / CBZ, RAR / CBR, 7z, LHA / LZH, TAR
Documents	PDF
Reading modes	Single-page, adaptive two-page (spread), Vertical Scroll, right-to-left
Requirements	macOS 15 Sequoia or later

* Animated GIF support coming soon.

Start reading in seconds.

Thousands of chapters, carefully collected. Don't read them in something that stutters.

• One-time purchase. No DRM.
• Code-signed, notarized by Apple.
• Localized in 14 languages.

Official site: rosetone.app