Oculante

_A no-nonsense hardware-accelerated image viewer_

Oculante's vision is to be a fast, unobtrusive, portable image viewer with a wide range of supported image formats while also offering image analysis and basic editing tools.

Oculante is a free, open-source, bloat-free, and privacy-respecting image viewer that is fast to start up and open images. It is available on Windows, Mac, Linux, FreeBSD, and NetBSD, and supports a wide range of image formats. Oculante caches images for faster reloading and can correctly display unassociated channels. It also includes features for basic image analysis, and offers SIMD-accelerated, basic nondestructive editing tools such as cropping, resizing, painting, rotating, blurring, and more!

Flipbook

With configurable caching, Oculante can quickly step through image sequences:

Inspection

Get information about pixel values and position, with precise picking:

File Management

Oculante's built-in File Manager allows you to access files on your system without leaving the application. This makes it easy to compare images, especially with the dedicated compare option that lets you flip between images while preserving the zoom level and position.

Correct color channel display:

Images may contain color information that is masked by the alpha channel. Although it is present you will not see it since usually RGB values are multiplied with the A channel when displayed. Oculante allows you to inspect all channels individually and see color data without transparency applied.

Cargo

BSD

• FreeBSD

• NetBSD

NetBSD builds currently use glsl-to-spirv instead of shaderc ######

You may need this variable when building Oculante on macOS: export SHADERC_LIB_DIR=/opt/homebrew/lib ######

Updates

Oculante only gets updated when it improves something for you. You'll still see new releases about every month or two! To stay up to date you can use the update button in settings, or download the new release executable. Updates are also managed through your package manager if you installed through one.

Features

• Image info: pixel position, color info, color histogram.
• Non-destructive editing, painting, and operator stack.
• Lossless JPEG editing: Crop, rotate, mirror without recompressing data.
• Built-in File Manager: Bookmark directories, favorite and manage files.
• Image tools: Image comparison, Measuring tools, Color pallete generation.
• User Interface: Dark/Light/System Themes, Zen Mode, Always on Top, Position/Scrub Bar, Fit image to view.
• Metadata and Metafile support: Load EXIF data and save metafile edit stacks.
• Focused on Performance: Threaded image loading, configurable image caching, Low cpu usage, pretty fast startup / loading time.