Every tool you need. Always free.

Dutch Mortgage Calculator

Step-by-step Netherlands home loan wizard: EMI, bridge loan, dual loan period & Dutch Box 1 tax refund.

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Netherlands Salary Calculator

Calculate your Dutch take-home pay after income tax, national insurance, and tax credits. Supports 30% ruling for expats.

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Currency Converter

Convert between 30+ world currencies using live exchange rates. Supports USD, EUR, GBP, INR, JPY, AUD, CAD, CHF and more.

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EMI Calculator

Calculate equated monthly installments for any loan. See monthly EMI, total interest and full amortization schedule.

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Compound Interest Calculator

See how your investment grows with compound interest. Compare annual, quarterly, monthly and daily compounding.

Percentage Calculator

Calculate percentages instantly. Find X% of Y, what percent one number is of another, or percentage change between two values.

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ROAS Calculator

Calculate Return on Ad Spend to measure ad campaign performance. Enter ad spend and revenue to see your ROAS ratio, revenue per dollar and profit.

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Tip Calculator

Calculate tip amount and split the bill between any number of people. Choose a tip percentage and see per-person totals instantly.

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SIP Calculator

Calculate SIP maturity value, wealth gained and year-by-year growth for your Systematic Investment Plan. Free online SIP calculator.

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FIRE Calculator

Calculate your Financial Independence Retire Early number. See corpus needed, years to FIRE and monthly savings required for Lean, Regular and FAT FIRE.

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FIBRE Calculator

Plan FI through multiple income streams — equity, rental and business income. Calculate your FIBRE corpus and monthly SIP needed.

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IRR Calculator

Calculate the Internal Rate of Return for any investment. Enter cash flows and get your annualised return instantly. Great for real estate and business.

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Leverage Power Calculator

See how leverage amplifies your investment returns. Compare leveraged vs unleveraged ROE and find the break-even return rate.

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Goal SIP Calculator

Find out exactly how much monthly SIP you need to reach any financial goal — child education, house, retirement. Free goal-based SIP planner.

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SWP Calculator

Plan monthly income from your corpus with a Systematic Withdrawal Plan. Compare SWP vs Fixed Deposit year by year.

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Wealth Bucket Strategy

Allocate retirement corpus across 5 risk-adjusted buckets — Safety, Income, Balanced, Growth and Legacy. Simulate sequential withdrawals over 30 years.

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Wealth Income Compass

Map your net worth and all income streams to get your Financial Independence score, passive income coverage ratio and estimated years to FI.

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FD Calculator

Calculate Fixed Deposit maturity amount and interest for simple and compound interest. Compare monthly, quarterly and annual payout options.

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NPS Calculator

Calculate National Pension System maturity corpus, monthly pension and lump sum at retirement. Includes Tier I returns and annuity breakdown.

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JSON Formatter

Format, validate, and minify JSON with syntax highlighting.

Regex Tester

Test and debug regular expressions with real-time match highlighting.

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Base64 Encoder

Encode and decode Base64 strings instantly.

Color Picker

Pick any color and instantly convert between HEX, RGB, HSL and CSS formats. Copy values with one click.

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Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 cryptographic hashes from any text. Runs entirely in your browser.

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Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences or words. Start with the classic Lorem ipsum opening or randomize.

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Markdown Editor

Write Markdown and see the live HTML preview side by side. Copy rendered HTML with one click. No sign-up needed.

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AI Story Generator

Generate a free personalised children's story in seconds. Enter your child's name, age and favourite theme — powered by AI.

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AI Email Rewriter

Paste any email and rewrite it in seconds. Choose professional, friendly, concise, formal or persuasive tone — powered by AI.

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AI Poem Generator

Generate a personalised poem for any occasion in seconds. Rhyming, haiku, limerick and more — in 8 languages. Powered by AI.

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AI Recipe Generator

Enter the ingredients you have and get a full recipe instantly. Supports dietary filters and cooking time preferences — powered by AI.

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AI Homework Helper

Get instant step-by-step explanations for any homework question. Choose subject and age group — powered by AI.

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AI Quiz Maker

Paste any text and generate quiz questions with answers instantly. Perfect for teachers and students — powered by AI.

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AI Text Summarizer

Paste any article or document and get a clear summary instantly. Choose brief, standard or bullet-point format — powered by AI.

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AI Plant Disease Detector

Upload a photo of your plant and get instant AI diagnosis, treatment recommendations and prevention advice. Powered by Cloudflare Workers AI.

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Word Counter

Count words, characters, sentences, paragraphs and estimate reading time. Instant live counting as you type.

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Timer & Stopwatch

Online countdown timer and stopwatch. Set custom hours, minutes and seconds. Lap times, sound alert when done.

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QR Code Generator

Generate QR codes instantly for URLs, text, email or phone numbers. Download as PNG. Free, no sign-up.

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Language Translator

Translate text between 30+ languages instantly. Supports auto language detection. Free, no sign-up required.

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Unit Converter

Convert between metric and imperial units for length, weight, temperature, area, volume, speed and data.

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Age Calculator

Calculate your exact age in years, months, days, hours and minutes. Includes next birthday countdown.

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Health

BMI Calculator

Calculate your Body Mass Index in metric (kg/cm) or imperial (lbs/ft). Shows BMI score, health category and healthy weight range.

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Health

Calorie Calculator

Calculate your daily calorie needs (TDEE) based on age, gender, height, weight and activity level using Mifflin-St Jeor.

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Health

Steps to Km Calculator

Convert steps to kilometres or miles and calculate calories burned. Enter height, sex and pace for accurate stride-based results.

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Date Difference Calculator

Find the exact number of days, weeks, months and years between any two dates. Also calculates working days and weekends.

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Time Zone Converter

Convert time between any world time zones. See current time in New York, London, Dubai, Mumbai, Tokyo and more simultaneously.

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Password Generator

Generate cryptographically secure passwords with custom length, character sets and bulk generation.

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JWT Decoder

Decode and inspect any JSON Web Token instantly. See header, payload, all claims, expiry status and issued-at time in human-readable format. 100% client-side.

UUID Generator

Generate cryptographically secure UUID v4 identifiers instantly. Single or bulk generation up to 100. Copy with one click. Runs entirely in your browser.

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URL Encoder / Decoder

Encode special characters for safe URL transmission or decode percent-encoded strings. Supports encodeURIComponent and encodeURI modes.

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Diff Checker

Paste two texts and instantly see line-by-line differences highlighted in green and red. Uses LCS algorithm — same as git diff. No data sent to server.

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Cron Expression Builder

Visually build cron schedules, generate the expression, get a plain-English description and see the next 5 run times. Includes common presets.

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Invoice Generator

Create professional invoices with business details, client info, line items and tax. Download as PDF with one click. Free, no sign-up required.

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General Knowledge Quiz

Test your knowledge across 6 categories: Finance, Technology, Science, Geography, Maths and General Knowledge. Timed questions, instant scoring and a fun fact after every answer.

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Tic Tac Toe

Play Tic Tac Toe against an unbeatable AI or a friend in two-player mode. Score is tracked across rounds. No sign-up needed.

Sudoku

Play Sudoku online with Easy, Medium and Hard puzzles. Includes hints, validation, keyboard support and an auto-solve button. No sign-up needed.

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Memory Card Game

Flip cards to find all matching emoji pairs. Choose 4×4 or 6×6 grids. Tracks moves and time. Fun for all ages — play instantly with no sign-up.

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Math Challenge

Test your mental arithmetic speed. 10 timed questions per round across Easy, Medium and Hard difficulty. Addition, subtraction, multiplication and division.

Counting Game

Count the emoji objects and pick the right number! Fun and colourful counting practice for young kids. 10 rounds with cheerful feedback.

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Shape Matcher

Identify shapes — circle, square, triangle, rectangle, star and more. Tap the matching shape. Perfect for kindergarten and early primary.

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Alphabet Quiz

Which animal starts with the letter A? Fun letter-recognition quiz using emoji. Builds phonics and vocabulary for early readers.

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Times Tables Quiz

Practice multiplication tables 1–12. Timed rounds, score tracking, and instant feedback. Essential maths practice for primary school.

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Geography Quiz

Name the country from its flag or identify the capital city. 50+ countries, multiple difficulty levels. Great for geography homework.

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Word Scramble

Unscramble the jumbled letters to find the hidden word. Hints available. Builds vocabulary and spelling skills for ages 8–12.

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Fraction Quiz

Visual fraction practice — identify shaded fractions from pie charts and bar models. Covers halves, thirds, quarters and more.

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Typing Speed Test

Measure your typing speed in WPM and accuracy. Multiple difficulty levels. Great for building keyboard skills for school and beyond.

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Periodic Table Quiz

Test your chemistry knowledge. Match element symbols to names, atomic numbers and properties. Covers all 118 elements.

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Binary Number Game

Convert decimal numbers to binary and back. Learn how computers count. Interactive feedback and score tracking for budding coders.

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Tracing Game

Trace letters, numbers and shapes with your finger or mouse. Covers A–Z, 0–9 and 8 shapes. Builds pre-writing skills for toddlers and early learners.

Find & Count

Spot a specific emoji hidden in a colourful scene and count how many you can find. Builds observation and counting skills for toddlers.

Colour Mixing Game

Mix red, blue and yellow to discover new colours! Learn primary and secondary colours through interactive play. Fun for young kids.

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Sight Words Game

Match pictures to words. Covers 40+ Dolch sight words. Builds early reading skills with fun emoji pictures for young readers.

Number Bonds

Find the missing number to complete the pair. Covers bonds to 5, 10 and 20. Visual and interactive maths for early learners.

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Animal Sounds Quiz

Match animals to their sounds! Covers 20+ animals with emoji. Does a cow moo or quack? Fun quiz with cheerful feedback.

Colour the Same Number

Pick a colour and paint all matching numbers the same. All 1s go red, all 2s go blue! Builds number recognition and colour skills for ages 4–7.

Easy Maths

Single-digit addition and subtraction for young kids. Visual dot counters, big numbers and star celebrations. Perfect for ages 4–7.

I Spy

I spy with my little eye… Find the hidden emoji that starts with the given letter. Builds observation and phonics skills for toddlers.

Colour by Number

Click each numbered section and paint it the right colour. Complete the house, sun and flower pictures. Fun for ages 4–7.

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Word Search

Find hidden words in a letter grid. Animals, Food, Countries, Space and Body Parts categories. Click first and last letter to mark a word.

Spot the Difference

Find 5 differences between two emoji pictures. Park, Ocean, Farm, Sky and Jungle scenes. Timer and hints included.

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Roman Numerals

Convert Roman numerals to numbers and back. Covers I to C (1–100). Learn the ancient number system used by Romans.

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Multiplication Bingo

Fill your bingo card by answering times tables questions. Get 4 in a row to win! Fun and fast multiplication practice.

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Parts of Speech

Identify nouns, verbs, adjectives and adverbs in sentences. Interactive grammar practice for primary and middle school.

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Money Maths

Make exact change using UK coins and notes. Shopping practice with 1p to £2 coins. Fun way to learn money skills.

Prime Number Sieve

Discover all prime numbers up to 100 by crossing out multiples. Interactive Sieve of Eratosthenes. Learn how primes work.

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Equation Balancer

Solve one-step and two-step algebra equations. Learn to balance both sides with step-by-step solutions. Essential GCSE maths.

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DNA Base Pair Quiz

Match complementary DNA bases: A pairs with T, G pairs with C. Decode DNA strands with interactive feedback. GCSE biology prep.

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Vocabulary Builder

Match challenging words to their definitions. Covers 60+ English words with example sentences. Great for SAT and GCSE English prep.

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Logic Gates Game

Predict outputs of AND, OR, NOT, NAND, NOR and XOR gates. Visual gate diagrams with interactive quizzes. Computer science fundamentals.

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Timeline Sorter

Sort historical events into chronological order. World History, Science discoveries and Technology milestones. GCSE history revision.

Trigonometry Quiz

Test sin, cos and tan values for common angles. Interactive unit circle visual. Covers 0° to 180°. Essential GCSE maths revision.

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Map Quiz

Identify countries by their location and neighbours. Covers 50 countries across all continents. Fun geography revision game.

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Quick Task Board

Paste a bullet list and instantly get a shareable Kanban board. Move tasks between Todo, In Progress and Done. Share via link — no sign-up needed.

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Clock Game

Match the digital time to the correct analogue clock. Covers o'clock, half past, quarter past and quarter to. Fun time-reading practice for ages 8–12.

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Mean, Median, Mode Quiz

Calculate mean, median, mode and range from data sets. Step-by-step solutions. Essential GCSE maths statistics revision for ages 12–15.

Pythagoras Theorem

Find the missing side of right-angled triangles. Covers finding the hypotenuse and shorter sides. GCSE maths revision with step-by-step working.

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Speed, Distance, Time

Solve word problems using the SDT formula triangle. Covers km/h, mph and m/s with real-world scenarios. GCSE physics and maths revision.

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Telling Time

Read analogue clocks and match them to the correct digital time. Covers o'clock and half past. Perfect time-reading practice for ages 4–7.

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Rhyming Words

Find the word that rhymes! Match animals, fruits and objects by their ending sounds. Builds phonics and early literacy skills for ages 4–7.

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Patterns Game

Complete the pattern sequence! ABAB, AABB and more with colourful emoji tiles. Builds early maths and logical thinking for ages 4–7.

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Opposites Game

Match words with their opposites — big/small, hot/cold and more! Fun vocabulary and language learning game for ages 4–7.

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Weather & Seasons

Match weather to its season and pick the right clothing! Learn spring, summer, autumn and winter. Fun science for ages 4–7.

Odd One Out

Spot the odd one out from a group of emoji! Builds categorisation and critical thinking skills. Fun observation game for ages 4–7.

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Spelling Bee

Test your spelling with Easy, Medium and Hard word lists. Definitions as hints. Essential vocabulary building for ages 8–12.

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Punctuation Practice

Choose the correct punctuation for sentences — full stops, commas, apostrophes and more. Builds grammar skills for ages 8–12.

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Area & Perimeter

Calculate area and perimeter of rectangles and squares with labelled SVG diagrams. Step-by-step feedback. KS2/KS3 maths for ages 8–12.

Angles Quiz

Name and estimate angles — acute, right, obtuse, straight and reflex. SVG angle diagrams with arc indicators. KS3 maths for ages 8–12.

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Food Chain Game

Order organisms in a food chain and answer who-eats-who questions. Covers producers, consumers and apex predators. Science for ages 8–12.

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Human Body Quiz

Match organs to body systems and functions. Covers digestive, circulatory, nervous, skeletal and respiratory systems. Science for ages 8–12.

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Chemistry Equations Quiz

Balance equations, name products and identify reactants. Covers 15 key reactions with fun chemistry facts. GCSE chemistry for ages 12–15.

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Shakespeare Quiz

Match quotes to plays, identify characters and complete famous lines. Covers Hamlet, Macbeth, Romeo & Juliet and more. GCSE English for ages 12–15.

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Idioms Quiz

Learn 51 common English idioms and their meanings. Example sentences for context. Essential English vocabulary for ages 12–15.

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Statistics Quiz

Read charts, interpret frequency tables and solve probability questions. GCSE statistics and data handling revision for ages 12–15.

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Flashcard Maker

Create, flip and study your own flashcards with spaced repetition. Add any subject, export your deck and track mastery. Free study tool.

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Homework Timer

Pomodoro-style focus timer with 25-min work sessions, short and long breaks. Session log and audio alert. Boost study productivity.

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Times Table Chart

Interactive 12×12 multiplication grid. Click any row, column or cell to highlight it. Colour-coded squares and even/odd products. Print-ready.

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Reading Level Checker

Paste any text to get Flesch Reading Ease score, grade level and reading age. Useful for teachers, writers and students. Free online tool.

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Chess

Play free online chess in your browser. Two-player mode or challenge the computer. Full rules: castling, en passant, pawn promotion, check and checkmate.