whatisgithub

What is diff?

wesbos/diff — explained in plain English

Analysis updated 2026-07-30 · repo last pushed 2025-12-17

★ 1CSSAudience · developerComplexity · 1/5QuietSetup · easy

In one sentence

A CSS tool that visually compares two versions of a stylesheet to show what changed between them. It is an early-stage experiment that the creator plans to merge into a larger project called Synhax.

Mindmap

mindmap
  root((repo))
    What it does
      Compares CSS code
      Highlights changes
      Tracks style edits
    Use cases
      Catch unintended shifts
      Compare button updates
      Review large stylesheets
    Audience
      Developers
      Designers
    Status
      Early-stage project
      Merging into Synhax
      No README yet
    Tech stack
      CSS

Code map

Detail Auto

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filefunction / class

What do people build with it?

USE CASE 1

Compare two versions of a stylesheet to see what was added, removed, or modified.

USE CASE 2

Quickly spot styling shifts after updating a button's color and spacing across a large CSS file.

USE CASE 3

Track edits made to a website's appearance without manually scanning the entire stylesheet.

What is it built with?

CSS

How does it compare?

wesbos/diffbjori/bjori.github.comfalcn8/acctpass
Stars111
LanguageCSSCSSCSS
Last pushed2025-12-172013-08-13—
MaintenanceQuietDormant—
Setup difficultyeasyeasymoderate
Complexity1/51/52/5
Audiencedevelopergeneraldeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min

No README or documentation is included, so setup and usage are undocumented.

So what is it?

This GitHub project, called diff, is a tool for visually comparing CSS code. It helps developers see exactly what changed between two versions of a stylesheet, making it easier to track edits and catch unintended styling shifts. The project is built primarily with CSS. Based on the repository description, it appears to be an experiment in highlighting differences in code, and the creator plans to eventually merge it into a larger project called Synhax. A developer or designer working on a website's appearance would use this when they tweak styles and want to clearly see what was added, removed, or modified. For example, if you update a button's color and spacing across a large stylesheet, this tool would help you quickly identify those specific changes without manually scanning the entire file. The repository doesn't include a README, so the specifics of how to set it up or use it aren't documented. The description is brief, noting only that the code is for "mad css diffing" and will be merged into Synhax once finished. This suggests it's an early-stage or personal project rather than a polished, ready-to-use product.

Copy-paste prompts

Prompt 1
Show me how to use the diff tool to visually compare two versions of a CSS stylesheet and highlight what changed between them.
Prompt 2
I have an old version and a new version of my CSS file. Help me integrate this diff tool so I can see exactly which lines were added, removed, or modified.
Prompt 3
How can I adapt this CSS diffing approach to highlight styling changes between two CSS snippets in my own project?

Frequently asked questions

What is diff?

A CSS tool that visually compares two versions of a stylesheet to show what changed between them. It is an early-stage experiment that the creator plans to merge into a larger project called Synhax.

What language is diff written in?

Mainly CSS. The stack also includes CSS.

Is diff actively maintained?

Quiet — no commits in 6-12 months (last push 2025-12-17).

How hard is diff to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is diff for?

Mainly developer.

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