#diff

µDiff - a micro Go diffing library

HTML Streaming Over the Wire! 🥳 Diff DOM algorithm with streaming to make only the necessary modifications, insertions and deletions between a DOM node and an HTML stream reader.

Production-ready React hooks and standalone UI components, each shipped as its own @usefy/* package on npm

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Deep comparison and rich diffing for any Go value — text/JSON/Markdown/HTML output, RFC 6902 JSON Patch (generate & apply), custom equality, and test assertions. Zero dependencies, standard library only.

Simplified diff and merge for deeply nested objects.

A multiline string comparsion library (and tool.)

A longest sequence matcher. The logic is primarily based on the Python difflib package.

Worker to compute the diff between two files

Unified diff parsing/metadata extraction library for Rust

A versatile collection of smart, efficient, and reusable utility functions, classes and types for everyday development needs.

Helper functions for exposing prettier changes within linting tools

Shiki-powered terminal diff renderer for pi — syntax-highlighted, word-level diffs in split and unified views

Internet-Draft (ID) diff tool.

onix is a Rust rewrite of Python DeepDiff's core: byte-compatible output, 37-4245x faster, with ignore_order support included.

Live Markdown viewer for reviewing AI-agent output — change highlighting, unread badges, full-text search, Marp slides, PDF export. Zero-build Node.js.

A fast, zero dependency object and array comparison library. Significantly faster than most other deep comparison libraries and has full TypeScript support.

Shared pure core for the Fancy file-focused packages — diff engine, unified-diff parser, gutter annotations, path + language helpers. Zero deps, no React.

Detect and clean up unchanged vendor-published files in your Laravel application.

Compare R Objects with a Diff

Complete implementation of RFC6902 in TypeScript

Git TUI for code review in the AI-generated-code era — structural diffs, review tracking, and a --tests lens that reads a change by the tests it touches

Compare two arrays of objects, finding added, removed, updated and identical objects. Details the differences between updated objects.

Diffs for function call stacks across git commits. 22 languages supported (AST-based, built using Tree-sitter). Great for agentic review.

Terminal UI for building shell pipelines