Code Block
Numbered Lines
A code block with line numbers that stay out of the clipboard when the code is copied. Suits documentation. Change the code, the language and the file label.
React + Tailwind, shadcn-compatible: press “Copy for AI” and your Cursor or Claude Code agent installs it with the shadcn CLI.
What you can change
- the code and its highlighting through the lines array, where a token carries kind
- the block heading through title
- the first number through start when you show a fragment from the middle of a file
A link for your AI agent: preview, code and instructions.
Preview
Use it with AI
- 1. Copy the link.
- 2. Write to your agent in your own words and drop the link into the sentence.
- 3. The agent opens the link and installs the component from the registry.
put this on the home page as the hero:
https://vibeui.club/c/codeblock-001?lang=en&theme=dark
Not sure where to paste it? Step-by-step guide
Show the full instructions
What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.
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How to use
<Codeblock001 title="lib/format.ts" start={1} />A sample call. The agent installs the component itself from the registry via the “Copy for AI” link.
Settings
- File
title· default: lib/format.ts- First number
start· default: 1- Line counter
countText· default: {count} lines- Background
background· default: theme colour
More in Code Block
FAQ
- How do I add Numbered Lines with Cursor or Claude Code?
- Press “Copy for AI” on this page and paste it into your agent's chat. The instruction contains the shadcn CLI install command, the dependencies and what to keep, so the agent installs this exact component instead of recreating a lookalike.
- What does Numbered Lines depend on?
- No npm packages beyond React and Tailwind CSS.
- What can I change in Numbered Lines?
- Adapt: the code and its highlighting through the lines array, where a token carries kind; the block heading through title; the first number through start when you show a fragment from the middle of a file. Keep as installed: the local --vibeui-codeblock-001-* palette — do not swap it for your theme tokens; line numbers in ::before: moved into the markup they end up in the clipboard with the code; user-select:none on the numbers — otherwise a double click grabs the digit.
- Is Numbered Lines free?
- Yes. The preview is open without an account; with a free account you can copy up to 20 components a month.
For developers
npx shadcn@latest add https://vibeui.club/r/pro/codeblock-001.jsonThis command needs a signed link: sign in and open “Component source” below — it issues a working link valid for 30 minutes. All install options
Technical notes
The component is self-contained: one file, zero dependencies, its own palette in the local --vibeui-codeblock-001-* variables. Server component: no hooks. Every line is a span with display: block inside pre > code; the number is printed by ::before through counter-increment, so it is not part of the selection and does not end up in the clipboard. The start of the numbering is passed into counter-reset through a variable computed from the start prop. The theme comes from the surrounding color-scheme through light-dark(): the block has no surface by default, and the border and the header rest on translucent overlays, so the block reads on a light page as well as on a dark one. The highlighting is done with markup rather than a parser: the lines arrive as an array of tokens with a kind field, and the colours are attached by [data-token] selectors.
Tags
- code
- line-numbers
- counter
- syntax
Component source
The same file your agent installs. Here in case you would rather copy it by hand.
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