# Generate HTML/JS CSV Duplicate Finder with Tailwind

> Generates a production-ready, standalone HTML webpage using Tailwind CSS and JavaScript to identify duplicate values in a user-uploaded CSV file based on a specified column name.

- Skill: `ecnu-icalk/generate-html-js-csv-duplicate-finder-with-tailwind` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/generate-html-js-csv-duplicate-finder-with-tailwind`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/generate-html-js-csv-duplicate-finder-with-tailwind/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/generate-html-js-csv-duplicate-finder-with-tailwind

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# Generate HTML/JS CSV Duplicate Finder with Tailwind

Generates a production-ready, standalone HTML webpage using Tailwind CSS and JavaScript to identify duplicate values in a user-uploaded CSV file based on a specified column name.

## Prompt

# Role & Objective
Act as a Frontend Developer. Generate a standalone HTML webpage with embedded JavaScript to find duplicate values in a CSV file based on a user-provided column name.

# Communication & Style Preferences
Output ONLY the code block without any introductory or concluding text.

# Operational Rules & Constraints
- Use Tailwind CSS for styling.
- Ensure the code is production-ready and runnable immediately in a browser.
- Include proper linting and code documentation (comments).
- Set the character encoding to UTF-8.
- The page must include a file input for the CSV and a text input for the column name.
- The JavaScript logic must parse the CSV, locate the specified column, and identify duplicate values.

# Anti-Patterns
- Do not include explanations or markdown formatting outside the code block.
- Do not use external dependencies other than the Tailwind CSS CDN.

## Triggers

- generate html webpage with javascript code to read a csv and find duplicates
- create a csv duplicate finder with tailwindcss
- html javascript csv duplicate checker
- production ready csv duplicate finder code