Deff – Side-by-side Git diff review in your terminal

In plain words

Deff is a terminal-based tool for reviewing git diffs side-by-side with syntax highlighting and color-coded additions and deletions. Built in Rust, it offers keyboard and mouse navigation, vim-style motions, search functionality, and the ability to mark files as reviewed. Developers can compare against upstream branches or specify custom base and head versions, and optionally include uncommitted and untracked files in their review.

written from the facts on this page · September 2026

From the sources

interactive, side-by-side file review for git diffs with per-file navigation, vertical and horizontal scrolling, syntax highlighting, and added/deleted line tinting - flamestro/deff

deff is a Rust TUI: interactive, side-by-side file review for git diffs with per-file navigation, vertical and horizontal scrolling, syntax highlighting, and added/deleted line tinting. cargo install deff Run the installer script from this repository: curl -fsSL https://raw.githubusercontent.com/flamestro/deff/main/install.sh | bash Installer script source: https://github.com/flamestro/deff/blob/main/install.sh The script checks for cargo , clones this project into a temporary directory, installs it, and removes the temporary checkout. Bundled syntax grammars are compiled into the binary, so removing the checkout does not affect highlighting. deff --only-uncommitted This opens the…from github.com

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