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ConfigsApr 11, 2026·2 min de lecture

delta — Syntax-Highlighting Pager for Git Diff and Grep

delta is a syntax-highlighting pager for git, diff, grep, and rg output. Beautiful side-by-side diffs with language-aware highlighting, line numbers, and theming. Drop-in replacement for the default git pager.

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Introduction

delta is a syntax-highlighting pager for git, diff, and grep output. Written in Rust by Dan Davison. Drop-in replacement for the default git pager that transforms ordinary diff output into beautiful side-by-side views with syntax highlighting, line numbers, and language-aware theming.

What delta Does

  • Syntax highlighting — 100+ languages via syntect
  • Side-by-side view — optional two-column mode
  • Line numbers — in diffs
  • File headers — stylized, navigable
  • Navigation — jump between files with n / N
  • Themes — Sublime Text themes work
  • Merge conflicts — 3-way diff highlight
  • Whitespace errors — visible
  • git blame — also prettified
  • Works with — git, diff, rg, blame

Architecture

Rust binary that reads diff/patch format on stdin and writes colorized output to stdout. Integrates with git via core.pager = delta. Syntax highlighting uses the syntect crate (Sublime .sublime-syntax compatible).

Self-Hosting

CLI tool, git pager.

Key Features

  • Syntax highlighting for 100+ languages
  • Side-by-side diff view
  • Line numbers
  • File navigation (n/N)
  • Sublime theme compatibility
  • Works with git diff/show/log/blame
  • Integrates with rg, grep
  • Dark and light modes
  • Configurable via gitconfig

Comparison

Pager Highlighting Side-by-side Language
delta Yes Yes Rust
diff-so-fancy Yes No Perl
diff-highlight (git) Limited No Perl
bat + diff Yes No Rust
less No No C

FAQ

Q: vs diff-so-fancy? A: Similar functionality. delta is faster (Rust), supports side-by-side, and has richer syntax highlighting. diff-so-fancy is older and simpler.

Q: Side-by-side is hard to read? A: Adjust max-line-length and terminal width. Overly wide lines wrap automatically; on narrow terminals, turn side-by-side off.

Q: Does it work with git log? A: Yes. git log -p automatically goes through delta's pager. git blame is also highlighted separately.

Sources

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