Skip to content

FastPreview vs KDiff3

A side-by-side look at FastPreview and KDiff3. For an in-depth review of either product, follow the links below.

FastPreview

FastPreview

Office & Productivity

FastPreview is a free image and document viewer software for Windows. It allows quick previewing of images, PDFs, Office documents, emails and more without opening them in dedicated apps.

previewviewerimagesdocumentspdfs
KDiff3

KDiff3

Development

KDiff3 is a free open source diff and merge tool for Windows, Mac, and Linux. It allows users to compare files and directories, shows differences in side-by-side and inline layouts, and helps merge changes between versions. KDiff3 supports Unicode, auto-detection of encodings, and editing actions during merges.

diffmergecompareversion-control

Related Comparisons

Araxis Merge
SmartSynchronize
SemanticMerge
GNU Diff Utilities