Text & Writing
7 tools Word Counter Count words, characters, sentences & reading time Lorem Ipsum Generator Placeholder text with fun variants — pirate, zombie, corporate Case Converter UPPER, lower, Title, camelCase, snake_case & more Readability Scorer Get a Flesch-Kincaid score with improvement suggestions Passive Voice Detector Highlights passive sentences in your text Email Subject Line Grader Score your email subject line 1–10 with tips Text to Morse Code Convert text to Morse code and back again
Number & Math
8 tools Percentage Calculator "What is X% of Y?" and reverse variants Tip Calculator Bill split + tip, with custom percentages Loan/Mortgage Estimator Monthly payments, total interest & amortization Unit Converter Length, weight, temperature, speed — all in one Roman Numeral Converter Numbers ↔ Roman numerals instantly Age Calculator Enter birthday → exact age in years, months, days, hours Days Between Dates How many days until or since any date Salary to Hourly Annual ↔ hourly ↔ monthly breakdowns
Random & Fun
12 tools Coin Flipper Animated, dramatic coin flip Dice Roller Multi-dice, custom sides Spin the Wheel Enter options → spinning wheel picks for you "Should I Do It?" Button One button. It just says yes or no How Long to Read a Book Enter page count + reading speed → time estimate Excuse Tier Ranker Rate how believable an excuse is Name That Startup Generates absurd-but-realistic startup names + taglines Vibe Check Answer 3 questions → get your current vibe rated My Superpower Generator Enter your name → get an absurd personalized superpower How Many Seconds Old Are You? Enter birthday → live counter of your age in seconds Useless Fact of the Day One weird/true fact, refreshes daily Procrastination Timer A timer that judges you for how long you've been avoiding work
Utility Tools
7 tools Password Generator Secure passwords with strength options Color Picker / HEX Converter RGB ↔ HEX ↔ HSL conversions QR Code Generator Enter URL → instant QR code download Pomodoro Timer 25/5 work-break cycles for productivity Timezone Converter "What time is it in Tokyo right now?" Character Limit Checker Twitter/X, Instagram, LinkedIn limits Random Name Picker Paste a list, pick a winner
Developer Tools
8 tools JSON Formatter Format and minify JSON with validation and error highlighting JSON Diff Compare two JSON objects and highlight the differences JSONPath Tester Test JSONPath expressions against your JSON data live JSON Key Extractor Flatten nested JSON to dot-notation keys instantly Base64 Encoder / Decoder Encode or decode Base64 text and files in the browser JWT Decoder Decode JWT headers, payloads and check expiry instantly URL Encoder / Decoder Encode and decode URLs and query string components HTML Entities Escape / Unescape Escape and unescape HTML entities with live preview
Converters
7 tools JSON ↔ CSV Converter Convert between JSON and CSV in both directions JSON ↔ XML Converter Convert between JSON and XML with configurable root element CSS → Tailwind Converter Convert CSS rules to equivalent Tailwind utility classes HTML → JSX Converter Convert HTML to JSX: className, htmlFor, self-closing tags Image Converter Convert images between JPEG, PNG, WebP; resize and compress GPX ↔ KML Converter Convert GPS tracks between GPX and KML formats CSV ↔ GPX Converter Convert CSV lat/lon data to GPX tracks and back