delta is a terminal pager for Git output and ordinary unified diffs. It combines language-aware syntax highlighting with controls for line layout, code movement and navigation, making dense patch output easier to examine.
It is particularly useful for developers who prefer to review changes in a terminal rather than through a graphical Git client. Users can choose a conservative layout close to Git’s defaults or a richer presentation with side-by-side panes, line numbers and clickable links.
The breadth of supported input means delta can act as a consistent viewer across several developer commands. Its interface can also display hyperlinks when a terminal supports them, making it easier to move from a commit hash or file path to the related context without copying identifiers manually.
This is free and open source software.
Key Features
- Syntax-highlights source files using a broad selection of themes shared with the bat ecosystem.
- Emphasises within-line edits, helping distinguish small replacements from entirely changed lines.
- Provides side-by-side and unified presentations with configurable line numbers and wrapping.
- Includes shortcuts for moving between changed files and hunks in long diffs.
- Can improve the presentation of merge conflicts, Git blame and search output.
- Recognises Git moved-code highlighting and can emphasise lines moved within a change.
- Can create terminal hyperlinks for commit identifiers and file paths.
- Offers extensive styling of file headers, commit blocks and hunk separators.
- Provides compatibility presentation modes for diff-highlight and diff-so-fancy.
- Adjusts output for light and dark terminal backgrounds.
Website: github.com/dandavison/delta
Support:
Developer: Dan Davison
License: MIT License

delta is written in Rust. Learn Rust with our recommended free books and free tutorials.
Related Software
| Terminal-Based Diff Tools | |
|---|---|
| difftastic | Structural diff tool that compares files based on their syntax |
| hunk | Terminal diff viewer with syntax highlighting and side-by-side views |
| diff-so-fancy | Attractive diffs with diff-highlight and more |
| delta | Viewer for git and diff output |
| icdiff | An improved colored diff |
| diffoscope | In-depth comparison of files, archives, and directories |
| colordiff | Wrapper for diff with pretty syntax highlighting |
| diffsitter | Semantic diff tool |
| objdiff | Local diffing tool for decompilation project |
| ydiff | Tool to view colored, incremental diff in a version controlled workspace |
| diffr | Word-by-word diff highlighting utility |
| dyff | diff tool for YAML files |
| Wdiff | Wordwise implementation of diff |
| dwdiff | diff program that operates at the word level |
| diffyml | Compares YAML documents by their structure |
| oyo | Step-through diff viewer |
| diff2html-cli | Generate HTML diffs |
| biodiff | Terminal-based binary diff viewer |
| dirdiff | Compute the differences between two directories |
| csvdiff | Fast diff tool for comparing CSV files |
| VBinDiff | Visual binary diff |
| riff | Wrapper around diff |
| csv-diff | Diffing CSV and JSON files |
| xmldiff | Compare XML documents |
| Patdiff | File diff using the Patience Diff algorithm |
| dead-ringer | Binary diff utility |
| sesdiff | Generates a shortest edit script |
| semdiff | Semantic diff tool written in Rust |
Read our verdict in the software roundup.
| Git Tools for Diff Review and Repository History | |
|---|---|
| difftastic | Structural diff tool that compares files based on their syntax |
| git-filter-repo | Quickly rewrite git repository history |
| onefetch | Displays information about a local Git repository |
| git-stats | Local git statistics including GitHub-like contributions calendars |
| diff-so-fancy | Attractive diffs with diff-highlight and more |
| BFG Repo-Cleaner | Clean unwanted data from Git repository history |
| git-delta | Viewer for git and diff output |
| gitlogue | Cinematic Git commit replay tool |
| git-quick-stats | Access various statistics in a git repository |
| git-who | Command-line Git analysis tool |
| git-standup | Recall what you did on the last working day |
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| git-sizer | Compute various size metrics for a git repository |
| diffnav | Git diff pager based on delta but with a file tree, à la GitHub |
| critique | Terminal UI for reviewing git diffs |
| git-big-picture | Visualization tool for Git repositories |
| hercules | Gain advanced insights from Git repository history |
| keifu | TUI that visualizes Git commit graphs |
| git-fame | Git repository collaborators sorted by contributions |
| needle | Highlights GitHub PRs |
| mergiraf | Git merge driver |
| git-history | Analyze Git history using SQLite |
| ec | Terminal Git mergetool |
| diffr | Word-by-word diff highlighting utility |
| git-scope | Fast TUI dashboard to view the git status of all your repositories |
| mamediff | Manages unstaged and staged Git diffs |
| deadbranch | Keep Git repositories tidy |
| GitTop | Lightweight desktop client for GitHub notifications |
| git-heatmap | Generates a customizable heatmap |
Read our verdict in the software roundup.
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