delta

At a glance

• Editor score
  7.2 / 10
• Pricing
  Open source
• Best for
  Developers preferring a fast terminal diff viewer
• Paid from
  Free
• Three-way merge
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Syntax-aware and word-level highlighting improves diff readability
  • Works with Git, Mercurial, grep, ripgrep, and git grep
  • Runs on Linux, macOS, and Windows from the command line

• Where it doesn't

  • It is a pager and does not perform repository merges
  • Its workflow is centered on terminal-based diff viewing
  • Folder comparison is not part of its stated feature set

Our verdict on delta

Delta is an open-source command-line pager for Git, unified diff, and grep output. It is aimed at developers who want more readable terminal reviews without leaving established version-control and search workflows. Its interface adds language syntax highlighting, word-level change highlighting, side-by-side layouts with line wrapping, line numbers, navigation through large diffs, hyperlinks for commits and file paths, and customizable themes and styles. Official binaries and installation instructions cover Linux, macOS, and Windows.

The strongest fit is its integration with existing command-line tools. Delta can be configured as Git’s pager, used to compare two files directly, or connected to Mercurial’s pager workflow. It also supports ripgrep, git grep, and grep output, while Git blame receives formatting and syntax highlighting. These connections make it useful for developers who already review changes, search code, and inspect history in a terminal. Its three-way merge-conflict display works through Git’s zdiff3 conflict style, helping present conflict sections more clearly during review.

Delta’s scope is deliberately narrower than a full merge application. It displays diffs and conflict information, but does not perform repository merges itself, so teams needing merge operations must keep that work in Git or another tool. The published project details describe command-line coverage rather than a graphical interface, making it less suitable for users who expect visual folder comparison or desktop-first workflows. Choose delta for a free, open-source terminal viewer with syntax-aware presentation across three operating systems; choose an alternative when merge execution or a broader visual comparison workspace is central.

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delta pricing

delta fact sheet

delta integrations

delta lists 5 integrations on its own site.

• Git
• Mercurial
• ripgrep
• git grep
• grep

Alternatives to delta

• Beyond CompareA broad desktop diff suite with three-way merging, synchronization, and version-control integrations.9.4
• DiffractA capable free-first diff tool with cross-platform support and Pro merging features.9.3
• P4MergeA free desktop diff and merge tool with three-way merging and broad platform support.9.1

See all delta alternatives →

Featured on iTechGuides

delta is listed in our Diff and Merge Tools directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update