Site Map

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AI Token Counter

Count tokens and estimate API costs for GPT-4, Claude, and Gemini

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AI Prompt Builder

Build structured prompts for ChatGPT, Claude, and Gemini with preset templates

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AI Image Prompt Generator

Generate prompts for Midjourney, DALL-E 3, and Stable Diffusion

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AI Content Detector

Check text for AI-generated patterns using burstiness and perplexity signals

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Word & Character Counter

Live word, character, paragraph, and reading time tracker

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Text Case Converter

Convert text to UPPERCASE, lowercase, camelCase, slug-case, and more

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Document Diff Checker

Compare two text files side-by-side to highlight changes

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Markdown Live Preview

Write Markdown and preview the formatted output in real time

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Custom Font Generator

Transform text into bold, italic, Gothic, and other Unicode font styles

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Lorem Ipsum Generator

Generate placeholder text for design layouts and mockups

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Text to Speech

Convert written text to audio using browser speech synthesis

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JSON Formatter & Validator

Parse, fix, pretty-print, or compress JSON

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Base64 Encoder / Decoder

Encode and decode Base64 strings instantly

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Password Generator

Generate strong, random passwords with custom length and character sets

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QR Code Generator

Create QR codes for links, text, and credentials

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WhatsApp Link Creator

Generate direct click-to-chat WhatsApp links with pre-filled messages

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Image Resizer

Resize images by pixel dimensions or percentage in your browser

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Loan Amortization Calculator

Calculate monthly payments and full amortization schedules

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Tip & Bill Splitter

Split bills and calculate tips across multiple people

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Unit Converter

Convert length, weight, temperature, volume, and more

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Age Calculator

Calculate exact age in years, months, days, and hours

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BMR & TDEE Calculator

Calculate your daily calorie needs based on activity level

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BMI Calculator

Calculate Body Mass Index from height and weight

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REM Sleep Calculator

Plan your sleep schedule around 90-minute cycles

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Pomodoro Timer

Focus timer based on the Pomodoro productivity technique

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Color Picker

Pick colors and get HEX, RGB, and HSL values

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White Screen / Dead Pixel Test

Test your screen for dead pixels and backlight issues

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Online Clock & World Time

Live clock with world time zones and stopwatch

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Blog Index – All Articles

Browse all guides and tutorials

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How AI Content Detectors Work

Burstiness and perplexity explained in plain English

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Why JSON Formatting Matters

Common JSON mistakes and how to debug them

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BMR vs TDEE Explained

How to calculate your actual daily calorie needs

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The Pomodoro Technique Explained

How the 25-minute focus method works and when to adapt it

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How to Create a Secure Password

What actually makes passwords strong — and what doesn't

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Understanding Loan Amortization

Why so much of your early mortgage payment goes to interest

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What Is Base64 Encoding?

What it is, what it isn't, and when developers actually need it

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REM Sleep Cycles Explained

How to wake up rested by timing your alarm to sleep cycles

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Homepage

All tools and site overview

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About Us

About AI Learning Gym and why we built it

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Privacy Policy

How we handle your data (spoiler: we don't collect it)

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Terms of Service

Terms and conditions for using AI Learning Gym

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Contact

Get in touch with us