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wtf is highlightjs-copy?

brucemacd/highlightjs-copy — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2025-03-13

Audience · developerComplexity · 1/5StaleSetup · easy

TL;DR

A Highlight.js plugin that adds a one-click copy button to code blocks, with placeholder replacement, accessibility support, and easy install via script tag or NPM.

Mindmap

mindmap
  root((repo))
    What it does
      Copy button
      Code blocks
      One click copy
    Tech stack
      JavaScript
      Highlight.js
      NPM
    Use cases
      Docs sites
      API docs
      Tutorials
    Audience
      Developers
      Doc writers
    Features
      Accessibility
      Placeholder replace
      Custom CSS

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Add a one-click copy button to code snippets on a documentation site

REASON 2

Replace placeholder text like API keys with real values before copying

REASON 3

Track when users copy code using custom callbacks

REASON 4

Style the copy button to match your site's design with CSS

What's in the stack?

JavaScriptHighlight.jsCSSNPM

How it stacks up

brucemacd/highlightjs-copy0verflowme/alarm-clock0verflowme/seclists
Language—CSS—
Last pushed2025-03-132022-10-032020-05-03
MaintenanceStaleDormantDormant
Setup difficultyeasyeasyeasy
Complexity1/52/51/5
Audiencedevelopervibe coderops devops

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

How do you spin it up?

Difficulty · easy Time to first run · 5min

Yoink these prompts

Prompt 1
Show me how to add the highlightjs-copy plugin to my Highlight.js setup via NPM.
Prompt 2
Help me configure highlightjs-copy to replace {{YOUR_API_KEY}} placeholders before copying.
Prompt 3
Write CSS to customize the appearance of the highlightjs-copy button.
Prompt 4
Add a callback to highlightjs-copy that logs each time a user copies code.

Frequently asked questions

wtf is highlightjs-copy?

A Highlight.js plugin that adds a one-click copy button to code blocks, with placeholder replacement, accessibility support, and easy install via script tag or NPM.

Is highlightjs-copy actively maintained?

Stale — no commits in 1-2 years (last push 2025-03-13).

How hard is highlightjs-copy to set up?

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

Who is highlightjs-copy for?

Mainly developer.

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