The fast, precise diff & merge tool for developers

Compare source files side by side with syntax highlighting for 30+ languages, word-level change detection within lines, and moved-block detection.

Compare code by structure, not just text. Diffract parses source into its own intermediate representation, ignoring formatting noise - and can even diff across languages.

Recursively diff entire directory trees. Spot added, removed, and changed files at a glance, then drill into any file's contents.

Resolve git merge conflicts with local, remote, and common-ancestor views. Works as a drop-in git mergetool with no extra setup.

Diff PDF, Word (.docx), and Excel (.xlsx) files. PDFs render as the real document with changes highlighted in place - blazing fast thanks to Diffract's own rendering pipeline - or as extracted plain text.

Inspect binary files byte by byte with offset, hex, and ASCII columns - ideal for compiled files, images, and firmware.

Browse commit history, diff any two commits, and launch Diffract as your git difftool - from the UI or the CLI.

A full command-line interface with three diff algorithms (standard, Myers, patience) for scripts, git hooks, and CI pipelines.

A native desktop app for Windows, macOS, and Linux. Comparisons run entirely on your machine - files never leave your computer.