# LLMS-full.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 100-600)
- **Speaking time** - Estimated minutes to speak at 140 WPM
- **Difficulty score** - Grade-level readability analysis (Flesch-Kincaid)
- **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 (last 5)
- **Auto-draft save** - Text persists on refresh via localStorage
- **Easter eggs** - Type "cow", "date", "hack", "ping", "sudo" for surprises
- **Dark/light themes** - Matches system preference, amber CRT mode
- **Sentence/paragraph highlighting** - Highlights long sentences (30+ words) and paragraphs (150+ words)

## Technical
- Pure HTML/CSS/JS single file (index.html)
- Shared theme file: theme.css
- No external dependencies
- Works offline (PWA-ready)
- All processing client-side
- Uses localStorage for drafts and history
- Default reading speed: 225 WPM
- Default speaking speed: 140 WPM

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

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

## Settings (localStorage keys)
- `readcalc-draft` - Saved text for restore on refresh
- `readcalc-history` - Last 5 analysis sessions
- `readcalc-visited` - First-visit tracking

## Reading Speed Reference
- 100-150 WPM: Academic/Technical content
- 150-250 WPM: Average adult silent reading
- 250-300 WPM: Light fiction
- 300-400 WPM: Skimmers
- 400-700 WPM: Speed readers (comprehension may drop)

## FAQ
- How does ReadCalc estimate reading time?
- Why do different calculators show different times?
- What is the average reading speed?
- Does ReadCalc store or share my text?
- How accurate is ReadCalc?

## Social Media Platforms Tracked
- X/Twitter: 280 characters
- Instagram: 2,200 characters  
- Facebook: 63,206 characters
- LinkedIn: 3,000 characters

## Creator
Dean Warwick - https://deanwarwick.nz/