rtfpessoa/diff2html

Health v2 · maintenance only

Adoption not part of the score

3398 stars · 301 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

diff2html is a JavaScript/TypeScript library that parses git or unified diff output and generates pretty, GitHub-style HTML diffs with line-by-line and side-by-side views, syntax highlighting, and line similarity matching. It ships as an npm library, a browser bundle, and a companion CLI (diff2html-cli) for viewing diffs in the terminal-to-browser workflow.

Use cases

• render git diffs as pretty html in a web app
• display side-by-side code changes in code review tooling
• view unified diff files with syntax highlighting in the browser
• show diff output from a git client or git gui
• preview build or snapshot diffs in ci tools
• convert diff text to colorized html from node.js

When to choose

• you need to visualize git or unified diffs as HTML in a browser or Node.js app
• you want GitHub-like diff rendering with syntax highlighting out of the box
• you need both line-by-line and side-by-side diff views
• you're building a code review, git client, or diff-sharing tool in JavaScript

When to avoid

• you need to compute or generate diffs from scratch rather than render existing diff text
• you need server-side rendering in a non-JavaScript stack
• you need a full diff/merge editor with interactive editing of changes
• you work with very large diffs where memory usage is a concern

Facets

library · maturity active

parser templating developer-tools developer-tools version-control web-development frontend browser cli cross-platform diff-viewer unified-diff git-diff syntax-highlighting code-review html-generation typescript nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rtfpessoa/diff2html")