Image Eye is a fast - and free - image viewer with a nice clean user interface.
The only image viewer you need for viewing and browsing images.
Clean with no unnecessary menus and toolbars wasting desktop space.
Uncompromising image quality.
Small and very fast, highly tuned code.
Reads all common image file formats.
Image index feature with very fast thumbnail-icon creation.
Rotate, mirror, zoom, pan, adjust contrast, brightness, sharpness, hue, saturation, gamma.
Adjustments can be saved non-destructively (and reapplied next time you open it).
It does not attempt to be a half-baked editor, format converter, or media player.
It does include a simple slide show scripting language.
Translated to several languages.
Features for the tech-nerds:
Deep color & HDR support (up to 32-bit floating point / color component).
High quality dithering for superior display of high bit-depth images.
Asynchronous file I/O allows decompression to start before file read finish.
Speculative decoding & caching of images in the background.
Data parallelism exploitation with SSE/SSE2/SSE3/SSE4 SIMD vector-instructions.
Task parallelism exploitation through extensive multi-core support.
Hand tuned code optimizations for critical code paths.
High quality resampling (image resizing) using Catmull-Rom interpolation.
Extensive text meta data support.
Native x64 (64-bit) and x86 (32-bit) versions.