350+ Free Online Tools for Everyone
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Learn how beliefs update with evidence - like weather forecasts improving with new data! Perfect for...
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Find your profit point in 3 minutes! Calculate break-even with real-time visualization, scenario ana...
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Calculate crystal properties, visualize Miller indices, compute d-spacing & more! Perfect for materi...
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Generate perfect ChatGPT prompts using proven frameworks like COSTAR, RTF, STAR, and CREATE. Transfo...
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Master 100+ engineering formulas in minutes! From structural analysis to circuit design - no enginee...
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Roll cosmic dice 10,000 times to predict any outcome! Master probability, risk analysis, and decisio...
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Calculate option profits like Wall Street pros! Master calls, puts, and Greeks in just 3 minutes - n...
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Complete guide to baby diaper sizing for all ages and brands. Find the perfect fit by weight and age...
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Build optimal investment portfolios using Modern Portfolio Theory! Calculate risk-return ratios, eff...
Visual emergency response system that works without language barriers. One tap sends location, healt...
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Calculate ROI, cash flow, and cap rate for any property in 3 minutes! Perfect for beginners - no fin...
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Process 10,000+ data points in real-time! Learn data cleaning, transformation, and analysis - the ba...
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Calculate perfect baby formula mixing ratios safely. Supporting all major brands with precise water-...
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Master structural engineering like playing with LEGO blocks! Analyze beams, trusses, and frames with...
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Calculate statistical significance for your A/B tests instantly! No statistics degree needed - get c...
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Advanced investment calculator with compound interest, regular contributions, tax analysis, and infl...
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Professional JavaScript minifier and compressor powered by Terser. Reduce JS file size up to 80%, op...
Find your profit point in 3 minutes! Calculate break-even with real-time visualization, scenario ana...
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Decode, validate, and analyze JSON Web Tokens with advanced security features. Supports all major al...
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Build optimal investment portfolios using Modern Portfolio Theory. See the efficient frontier, calcu...
Calculate crystal properties, visualize Miller indices, compute d-spacing & more! Perfect for materi...
Master AI-powered demand prediction in 3 minutes! Forecast sales, optimize inventory, and boost prof...
Professional guide to decode laundry care symbols. Learn proper washing, drying, ironing, and care i...
Master technical analysis with candlestick patterns, moving averages, RSI, MACD and 20+ indicators. ...
Instantly add line numbers to any text - perfect for code reviews, document editing, debugging, and ...
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Calculate molecular weights instantly with our interactive periodic table! Perfect for students, res...
Calculate your loan EMI instantly for home loans, car loans, and personal loans. Get detailed amorti...
Calculate VAT, GST, and income tax across 150+ countries with real-time currency conversion! Perfect...
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Generate lucky numbers for 100+ lottery systems worldwide! From Powerball to EuroMillions, we've got...
Calculate option profits like Wall Street pros! Master calls, puts, and Greeks in just 3 minutes - n...
Master FFT, filters, and waveforms in 3 minutes! Perfect for 5G/6G development, audio processing, an...
Ask the mystical Magic 8 Ball any yes/no question and receive ancient wisdom! The digital version of...
Master structural engineering like playing with LEGO blocks! Analyze beams, trusses, and frames with...
Calculate profit margins, markup, and optimal pricing. Compare with industry benchmarks and optimize...
Write Markdown on the left, see beautiful HTML preview on the right. Real-time editing with syntax h...
Find international calling codes for any country worldwide. Complete ITU E.164 database with step-by...
Master mathematics with our advanced adaptive quiz system. Practice arithmetic, algebra, geometry, a...
Complete mouse testing suite: click speed (CPS), accuracy training, hardware functionality, scroll w...
Professional medicine dosage calculator for healthcare professionals. Calculate accurate drug dosage...
Calculate the true financial impact of your meetings. Track productivity losses, optimize team effic...
Create viral memes with popular templates and custom text. Perfect for social media, entertainment, ...
Train your brain with this classic memory matching game. Improve concentration, memory, and cognitiv...
Complete SEO meta tag generator with AI assistance. Create optimized meta titles, descriptions, Open...
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Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Convert text to Morse code and back, learn with audio playback, and master the art of dots and dashe...
Calculate your monthly mortgage payment including principal, interest, taxes, insurance, and PMI. Ge...
Test your mouse instantly! Click responsiveness, scroll wheel testing, cursor tracking, and sensitiv...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Track oil changes, service history, and maintenance schedules for all your vehicles. Smart reminders...
Evaluate your ML models instantly! Calculate accuracy, precision, recall, F1-score, and visualize pe...
Convert temperatures between Celsius, Fahrenheit, Kelvin, and more! Get instant, accurate conversion...
Calculate your most fertile days with our comprehensive ovulation calculator. Track multiple fertili...
Calculate exactly how much paint you need for any room or project. Get accurate estimates for paint ...
Calculate parking space requirements, dimensions, and compliance for any building project. Get accur...
Create ultra-secure passwords instantly with enterprise-grade encryption. Generate random passwords,...
Calculate percentages instantly: find percent of a number, percentage increase/decrease, discounts, ...
Track your menstrual cycle, symptoms, and health patterns with complete privacy. Monitor periods, PM...
Convert between units of length, weight, temperature, area, volume and more. Universal conversion to...
Convert time zones instantly, schedule global meetings, and track world clocks - all in one powerful...
Calculate perfect pickling times for vegetables and fruits. Get precise timing for quick refrigerato...
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Smart watering schedules for 200+ plants including succulents (λ€μ‘μ΄), tropical houseplants, orchids, ...
Roll cosmic dice 10,000 times to predict any outcome! Master probability, risk analysis, and decisio...
Build and train AI brain circuits in real-time! See how neural networks learn patterns, make predict...
Master nuclear physics concepts through interactive simulations! Calculate half-life, visualize radi...
Master light physics in 3 minutes! Control lenses, mirrors, and prisms like a real physicist. Perfec...
Calculate statistical significance for your A/B tests instantly! No statistics degree needed - get c...
Calculate your pregnancy due date and track your baby's development week by week. F...
Calculate your pregnancy week, due date, and track baby's development! Get trimester info, milestone...
Create custom bingo cards instantly! Perfect for parties, classrooms, team building, and events. Gen...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Create dynamic QR codes with analytics, customization, and AI optimization. Track scans, customize d...
Create dynamic QR codes with analytics, customization, and AI optimization. Track scans, customize d...
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Test your reaction speed with millisecond precision. Professional-grade tool used by gamers, athlete...
Analyze text complexity with Flesch-Kincaid, SMOG, and other readability formulas. Perfect for write...
Calculate reading time instantly with advanced features. Get accurate estimates for silent and aloud...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Test and debug regular expressions with real-time matching, syntax highlighting, and comprehensive p...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Complete text processing toolkit: Remove line breaks, convert case (uppercase, lowercase, title case...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Find IATA (3-letter) and ICAO (4-letter) airport codes instantly. Search by airport name, city, or e...
Plan your dream retirement in minutes! Calculate how much you need, when you can retire, and track y...
Create backwards text, mirror text, and upside-down text instantly. Perfect for social media, gaming...
Discover perfect rhymes for any word! Perfect for poetry, songwriting, and creative writing with adv...
Find your perfect ring size with our accurate calculator. Multiple measurement methods, internationa...
Calculate Return on Investment (ROI) instantly: investment returns, annualized ROI, payback period, ...
Create custom bingo cards instantly! Perfect for parties, classrooms, team building, and events. Gen...
Find your profit point in 3 minutes! Calculate break-even with real-time visualization, scenario ana...
Plan your financial future with smart savings strategies. Calculate monthly savings needed, see comp...
Complete back-to-school shopping guide with grade-specific checklists, budget tracking, and money-sa...
Master calculations from basic arithmetic to complex functions - perfect for students, professionals...
Instantly test your screen resolution, display quality, pixel density, and monitor settings. Compreh...
Build optimal investment portfolios using Modern Portfolio Theory. See the efficient frontier, calcu...
Monitor and manage your digital wellness with our comprehensive screen time tracker. Set goals, trac...
Convert shoe sizes instantly between international sizing systems (US, UK, EU, AU, JP, CN). Find you...
Predict future sales with AI-powered forecasting! Learn time series analysis, machine learning model...
Master technical analysis with candlestick patterns, moving averages, RSI, MACD and 20+ indicators. ...
Calculate your optimal bedtime and wake-up time based on natural 90-minute sleep cycles. Wake up ref...
Build your AI-powered investment portfolio with robo-advisor technology - track stocks, crypto, and ...
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Calculate molecular weights instantly with our interactive periodic table! Perfect for students, res...
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Instantly resize images for 50+ social media platforms with bulk processing, smart AI cropping, and ...
Calculate option profits like Wall Street pros! Master calls, puts, and Greeks in just 3 minutes - n...
Professional line sorting tool with multiple methods: alphabetical, numerical, by length, or reverse...
Calculate speed, distance, or time using physics formulas. Supports multiple units (mph, km/h, m/s, ...
Advanced split bill calculator with tip calculation, tax splitting, and receipt scanning. Split rest...
Professional SQL code formatter and beautifier with syntax highlighting, validation, and multi-diale...
Calculate crystal properties, visualize Miller indices, compute d-spacing & more! Perfect for materi...
Master FFT, filters, and waveforms in 3 minutes! Perfect for 5G/6G development, audio processing, an...
Master structural engineering like playing with LEGO blocks! Analyze beams, trusses, and frames with...
Remove HTML tags and formatting from any text instantly. Perfect for content writers, developers, an...
Calculate VAT, GST, and income tax across 150+ countries with real-time currency conversion! Perfect...
Generate unlimited free Sudoku puzzles with multiple difficulty levels. Play online with interactive...
Find international calling codes for any country worldwide. Complete ITU E.164 database with step-by...
Calculate your retirement income with Social Security, 401(k), IRA, and pension projections. Updated...
Count syllables in words and text instantly. Perfect for poetry, songwriting, language learning, and...
Get preliminary health assessment and medical guidance with our AI-powered symptom checker. Fast, fr...
Analyze text complexity with Flesch-Kincaid, SMOG, and other readability formulas. Perfect for write...
Check your text for similarity and potential plagiarism. Advanced text analysis with similarity dete...
Find all possible words from jumbled letters! Perfect for word games, puzzles, and vocabulary buildi...
Convert text to binary and binary to text instantly. Supports ASCII, Unicode, and UTF-8 encoding. Pe...
Compare two texts using advanced algorithms (Cosine, Jaccard, TF-IDF). Perfect for plagiarism detect...
Calculate and convert tire pressure between PSI, Bar, kPa, and other units. Find optimal pressure fo...
Calculate statistical significance for your A/B tests instantly! No statistics degree needed - get c...
Play the classic Tic Tac Toe game online for free. Challenge the AI with multiple difficulty levels ...
Calculate mean, median, standard deviation, and perform t-tests instantly! Master statistics with in...
Calculate exact time duration between two dates and times. Perfect for work hours, project tracking,...
Convert time zones instantly, plan international meetings, and track world time. Perfect for remote ...
Calculate perfect tips with bill splitting, global etiquette guide, and AI assistance. Professional ...
Learn how beliefs update with evidence - like weather forecasts improving with new data! Perfect for...
Calculate and convert tire pressure between PSI, Bar, kPa, and other units. Find optimal pressure fo...
Four professional calculators in one powerful tool: Convert tire sizes (metric β imperial), calculat...
Calculate toll costs for any route worldwide. Compare transponder discounts, vehicle classifications...
Professional business valuation using DCF, multiples, and asset-based methods. Get instant valuation...
Master cash flow forecasting in 3 minutes! Visualize future cash positions, run scenario analysis, a...
Calculate fines, penalties, and total costs for traffic violations including speeding tickets, DUI/D...
Balance chemical equations instantly! Learn stoichiometry through interactive visualization. Perfect...
Convert text to natural-sounding speech with 200+ AI voices in 50+ languages. Free, accessible, and ...
Master financial decisions with traditional and digital assets. Calculate present value, future valu...
Watch data organize itself like friend groups at a party! Learn K-means, DBSCAN, and Hierarchical cl...
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Test your typing speed and accuracy with our free WPM (Words Per Minute) test. Track your progress, ...
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Join the numbers and get to the 2048 tile! The addictive puzzle game that took the world by storm. S...
Convert between units instantly with our comprehensive unit converter. Support for ...
Visual emergency response system that works without language barriers. One tap sends location, healt...
Convert Unix timestamps to human-readable dates and vice versa. Supports multiple formats, timezones...
Encode and decode URLs with special characters, spaces, and symbols. Perfect for web developers, API...
Extract URLs from text, websites, and documents instantly. Supports bulk processing, email extractio...
Calculate how much revenue each customer will generate over their lifetime. Optimize marketing ROI a...
Generate Universal Unique Identifiers (UUIDs) in multiple versions and formats. Per...
Get personalized vaccination schedules for children, adults, and travelers. CDC-app...
Track vaccination schedules for your family following CDC guidelines. Monitor immunization records, ...
Calculate Value Added Tax (VAT) instantly for 175+ countries worldwide. Add or remove VAT, generate ...
Master PID control systems through interactive simulation! Visualize step response, frequency respon...
Discover hidden relationships in your data instantly! Calculate correlations and create beautiful vi...
Free online vision screening with Snellen eye chart, color blindness test, and astigmatism detection...
Professional online vision testing with Snellen eye chart, color blindness assessment, and visual ac...
Track and manage your crypto portfolio in real-time! Monitor 10,000+ cryptocurrencies with AI-powere...
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Instantly discover your IP address, location, and network information. Check your online privacy and...
Transform your raw data into stunning interactive visualizations in seconds! AI-powered chart sugges...
Spin the wheel, guess letters, and solve puzzles! Classic word game with achievements and AI assista...
Convert any address worldwide to a universal 9-digit WIA Pin Code using our hybrid system with 2.8M+...
Learn to remember and use WIA Pin Code addresses through pictures and games! No reading required. ...
Convert any GPS location to a universal 9-digit WIA Pin Code address. Using YUJIN Transform technolo...
Track packages worldwide using WIA Pin Code addresses. Universal delivery tracking for all carriers ...
Visual emergency response system that works without language barriers. One tap sends location, healt...
Generate secure WiFi passwords with QR codes for easy device connection. Create enterprise-grade wir...
Visualize invisible electric and magnetic forces in real-time! Learn Maxwell's equations, Coulomb's ...
Count words, characters, sentences, and paragraphs instantly with our free online word counter tool....
Challenge your brain with word search puzzles! Find hidden words in the letter grid to improve vocab...
[TOOL_DESCRIPTION - Explain what this tool does and its benefits] ...
Professional XML formatter, beautifier and validator. Format, minify, validate XML with tree view, X...
Master 100+ engineering formulas in minutes! From structural analysis to circuit design - no enginee...
Download YouTube video thumbnails in all available resolutions instantly. Get HD, 4K, maxresdefault,...
Visualize fluid flow like water in pipes! Master pressure, velocity, and turbulence with real-time C...