IBrowse is a fast and compact sprite and JPEG image viewer written entirely in assembler. It requires the JPEG rendering version of SpriteExtend, as included in RISC OS 3.6.

    Fast
    Allows control of sprite and JPEG dithering
    Can load sprites on double-click
    Provides an 'image information' window
    Requires only 8K of memory for itself
    Supports the app-to-app transfer protocol
    Zoom function

IBrowse can - optionally - use Gordon Rogers' PseudoMem module to allow images larger than memory to be viewed.