网页相似度判断：根据网页结构判断页面相似性 ，可用于相似度计算、越权检测等(Determine page similarity based on HTML page structure)

diff html-diff html-similarity

• Updated Jul 27, 2019
• Python

A library for comparing two HTML files/snippets and highlighting the differences using simple HTML. Includes support for comparing complex lists and tables

php diff diffhtml visual-diff php-htmldiff htmldiff html-diff diff-html

• Updated Jun 11, 2026
• PHP

Calculate the differences between two XML/HTML documents.

ruby html xml html-diff xml-diff

• Updated Jan 12, 2026
• Ruby

Compare HTML contents

javascript html-diff

• Updated Nov 8, 2026
• TypeScript

Compares Nokogiri XML and HTML documents, nodes and node sets for equality or equivalency. Returns a list of differences and can exclude chosen nodes or attributes.

ruby html-diff xml-diff

• Updated Oct 29, 2026
• Ruby

MIGRATED TO CODEBERG -- A HTML diff generator with display HTML output.

php html-diff

• Updated Mar 29, 2024
• PHP

python html diff html-diff

• Updated Jun 30, 2022
• Python

exact diffs of rich text

diff annotation accessibility contenteditable collaboration html-editor text-annotation html-diff track-changes exact-diff diff-editor live-diff live-diff-editor chardiff exact-diffs plaintar intention-preserving intention-preservation

• Updated Oct 22, 2022
• JavaScript

Symfony Bundle for caxy/php-htmldiff library (https://github.com/caxy/php-htmldiff)

php diff symfony symfony-bundle diffhtml visual-diff php-htmldiff htmldiff html-diff diff-html

• Updated Jan 5, 2024
• PHP

Reusable HTML diff visualizer for browser apps with isolated styles and Vite builds.

html-diff html-diff-js

• Updated Jul 14, 2026
• TypeScript

This tool compares old and new versions of html and generates color-coded html in a diff format.

go cli golang html-diff

• Updated Apr 19, 2024
• Go

Monitors DOM structure changes on target websites to protect web scraping pipelines from breaking silently. Using no AI, no ML, no black boxes. Pure algorithmic approach.

test-automation developer-tools regression-testing html-diff change-detection dom-diff dom-analysis ui-regression page-monitoring

• Updated Aug 4, 2026
• TypeScript

Intelligent web page comparison tool with Wayback Machine support and visual regression testing

screenshot diff selenium internet-archive side-by-side web-scraping quality-assurance web-archiving wayback-machine digital-preservation visual-regression html-diff web-testing change-detection migration-tool website-migration website-monitoring visual-comparison web-comparison wayback-diff

• Updated Nov 2, 2026
• Python

Semantic structured diffs and GitHub-style text diffs for PHP: Diff::between() reports added, removed, modified and moved values at their paths, with identity-aware lists and redaction; Diff::text() gives Myers line diffs, hunks, unified patches and HTML.

php diff php-library audit-log text-diff html-diff composer-package data-comparison change-detection php8 deep-diff object-diff unified-diff array-diff pharaonic myers-diff line-diff structured-diff

• Updated Nov 6, 2026
• PHP

SiteChange - Detect what changed on a website - one command.

python cli diff alerts automation opensource monitoring command-line scraping devtools snapshot python3 css-selector uptime html-diff page-monitor change-detection web-tools web-diff website-monitoring

• Updated Oct 19, 2026
• Python

A TypeScript library for rendered HTML visual diff with side-by-side DOM comparison, npm package output, and browser SDK support.

typescript sdk npm-package side-by-side visual-diff html-viewer html-diff diff-viewer vite dom-diff

• Updated Jun 18, 2026
• TypeScript

Diff and markup HTML with <ins> and <del> tags.

diff html-diff html-diffs

• Updated Oct 2, 2025
• JavaScript