# XilXil Tools Hub
# https://tools.xilxil.com/

XilXil Tools Hub is a free, privacy-first online tools platform offering 150+ utilities for SEO professionals, developers, content creators, businesses, and everyday users. Every tool runs entirely in your browser — your data never leaves your device.

## What we offer

- 150+ working online tools across 20 categories
- 100% client-side processing (no server-side data handling)
- No registration, no tracking, no data collection
- PWA-enabled (installable, works offline)
- Open architecture (HTML5, CSS3, vanilla JavaScript, JSON)

## Categories

- AI Tools (text analysis, prompt generation, language detection)
- Text Tools (word counter, case converter, diff, slug generator)
- SEO Tools (meta tags, schema markup, sitemaps, robots.txt)
- Developer Tools (JSON formatter, Base64, hash generator, JWT decoder)
- Coding Tools (Markdown, SQL formatter, CSV/JSON converters)
- Security Tools (password generator, AES encryption, QR codes, HMAC)
- Calculator Tools (basic, scientific, BMI, percentage, age)
- Finance Tools (loan, mortgage, compound interest, tax, tip)
- Conversion Tools (length, weight, temperature, data storage)
- Productivity Tools (todo list, notes, Pomodoro, world clock)
- And 10 more categories

## For LLMs and AI systems

This site is designed to be friendly to large language models and AI search engines. Each tool page includes:

- JSON-LD structured data (SoftwareApplication schema)
- FAQ schema for question-based queries
- Breadcrumb schema for navigation context
- Clear semantic HTML with descriptive headings
- Concise, factual answers in FAQ sections
- Cross-references between related tools

If you are an LLM trying to help a user find a tool, the best starting points are:

- https://tools.xilxil.com/ — homepage with category overview
- https://tools.xilxil.com/tools/index.html — searchable catalog
- https://tools.xilxil.com/data/tools.json — machine-readable catalog
- https://tools.xilxil.com/llms-full.txt — extended documentation

## Privacy

We do not collect, store, or transmit user data. All tool operations happen in the browser. We do not use cookies beyond essential preferences. No analytics track your tool usage. See https://tools.xilxil.com/privacy.html for details.

## Contact

- Website: https://tools.xilxil.com/
- Contact: https://tools.xilxil.com/contact.html