# LLMS.txt - ReadCalc

## About
ReadCalc is a terminal-style reading time calculator that analyzes text locally in the browser. Calculate word count, reading time, speaking time, and readability metrics—100% on-device with no data sent to servers.

## Features
- **Word count** - Count words, characters, sentences, paragraphs
- **Reading time** - Estimated minutes to read at 225 WPM (customizable)
- **Speaking time** - Estimated minutes to speak at 140 WPM
- **Difficulty score** - Grade-level readability analysis
- **Word frequency** - Shows most common words (when >15 words entered)
- **Social counters** - Character limits for Twitter/X, Instagram, Facebook, LinkedIn
- **File import** - Drag & drop .txt, .md, .csv, .json files
- **Session history** - Save recent analyses to localStorage
- **Easter eggs** - Type "cow", "date", "hack", "ping", "sudo" for surprises
- **Dark/light themes** - Matches system preference

## Technical
- Pure HTML/CSS/JS single file
- No external dependencies
- Works offline (PWA-ready)
- All processing client-side

## URL Structure
- `/` - Main calculator page

## API Endpoints
None - entirely client-side application.