Tools starting with M

MAC Randomisation Explainer

Reads the U/L and I/G bits of any MAC address to say whether it is a real vendor identity or a randomised private Wi-Fi address, and what that breaks.

Macro Calculator

Calculate your perfect daily macros for fat loss, muscle gain, or maintenance.

Macro Split Calculator

Turn a daily calorie target into protein, carb and fat grams using balanced, high-protein, low-carb, keto or custom splits.

Madhubani Motif Explorer

Explore Madhubani motifs and their meanings, then plan a panel layout with exact border, cell size and motif count.

MAF 180 Training Zone Calculator

Maximum aerobic function heart rate ceiling and training zone from the Maffetone 180-minus-age method.

Magic 8 Ball

Ask a yes/no question and let the Magic 8 Ball decide.

Magnetic Field Visualizer

Interactive visualization of magnetic vector field lines, dipole forces, electromagnets, and flux density probes.

Mahila Samman Savings Certificate Calculator

MSSC maturity value at 7.5% compounded quarterly, the 40% partial withdrawal limit and premature closure at the reduced rate.

Maintenance Window Announcement Generator

Draft a clear scheduled-maintenance notice with UTC and local start times, expected impact and a rollback statement.

Makeup Shade Finder

Find your perfect makeup shades with AI-powered skin analysis. Get personalized foundation, blush, lipstick, eyeshadow, and bronzer recommendations.

Malayalam Pazhamchollu Explorer

Search 23 Malayalam proverbs with script, transliteration, the literal image, everyday meaning and the closest English proverb.

Male Body Fat Estimator

Estimate male body fat from US Navy tape measurements or Jackson-Pollock 3-site skinfolds, with ACE category bands.

Male Fertility Lifestyle Checklist

Score nineteen heat, substance, sleep, nutrition and timing habits linked to sperm quality, and get a review date.

Mandi Bhav

Check live daily crop and vegetable market rates from AGMARKNET for all Indian states.

Manglik Dosha Checker

Check if Mars is in a Manglik house (1st, 2nd, 4th, 7th, 8th, or 12th from the Moon) using real-time planetary calculations. Know your Manglik status, severity, and remedies.

Map Puzzle

Solve interactive geography puzzles — identify countries, capitals, flags, and landmarks on a map with scoring and difficulty levels.

Markdown / HTML Converter

Convert Markdown into HTML and strip HTML back to text.

Markdown Preview

Preview Markdown files

Marketing Consent Checkbox Copy Generator

Write unbundled, non-prechecked marketing consent checkbox wording for signup forms, with per-channel labels and frequency promises.

Marketing Consent Withdrawal Builder

Draft an opt-out message for email, SMS, calls or post with the right legal citation and the date the company must act by.

Marketplace Scam Checker

Review marketplace messages locally for off-platform payment, fake escrow, overpayment, OTP, remote-access, shipping, fee, and account-takeover signals.

Marks Percentage Calculator

Calculate your exam percentage from obtained and total marks across multiple subjects.

Marksheet Score Visualizer

Turn subject-wise marks into percentage bars that show your overall score, strongest subject and weakest subject.

Markup Calculator

Add a markup percentage to a cost to get the selling price and profit.

Marla Kanal Converter

Convert marla, kanal, sarsai, killa and murabba to square feet, square yards and square metres, with plot pricing.

Material Quantity Calculator

Work out how many bricks, floor or wall tiles, litres of paint, primer, putty, wood polish or stain, carpet rolls, lawn seed or mulch you need, with wastage.

Maternity Benefit Entitlement Calculator

Checks the Maternity Benefit Act section 5(2) eighty-day condition, gives the date it will be met, and dates the 26 or 12 week leave, rejoining and nursing-break timeline.

Maternity Leave Date Calculator

Work out maternity leave start, end and rejoining dates from the expected due date under the Maternity Benefit Act rules.

Math Practice

Unlimited practice questions for long division, linear equations and percentages, with instant checking.

Math Speed Challenge

Race against the clock with adaptive mental math challenges — operations scale in difficulty as your streak grows.

Matrix Calculator

Add, multiply and invert matrices up to 6×6 with exact fractions; find the determinant, rank, trace, powers and RREF with Gauss-Jordan steps.

Mattress Size Selector

Pick mattress size, thickness and firmness from sleeper count, height, body weight and sleeping position.

Max Heart Rate Formula Comparator

Compare Fox, Tanaka, Gulati, Nes and other age-predicted maximum heart rate equations side by side.

Maze Muncher

Eat every pellet and dodge the drones in this free maze arcade game you can play online.

MCA / ROC Filing Calendar & Penalty Calculator

Derive AGM, AOC-4, MGT-7/7A, ADT-1, DIR-3 KYC and LLP Form 11/Form 8 due dates from your incorporation date, and the per-form MCA additional fee accrued on anything late.

MCP Permission Diff Auditor

Compare MCP tool manifests locally and highlight added capabilities, changed schemas, and risky permission patterns before upgrading.

MD5 Hash Generator

Generate secure, cryptographic MD5 hash values (checksums) from any input text instantly, with real-time outputs.

Mean Arterial Pressure Calculator

Calculate your Mean Arterial Pressure (MAP) from systolic and diastolic blood pressure readings.

Mean, Median & Mode Calculator

Mean, median, mode, range and standard deviation from a list of numbers.

Measurement Error-Budget Builder

Combine uncertainty sources, their distributions, and a coverage factor into a combined and expanded measurement uncertainty.

Media Metadata Timeline Correlator

Extract bounded date fields from local image, MP4, and WAV metadata, preserve timezone uncertainty, and compare the resulting timeline without authenticity claims.

Media Query Generator

Generate a CSS media query for a breakpoint.

Media Release Checklist Builder

Build a checklist of the releases, licences and permissions your photo, audio or video needs before you publish it.

Medical Report De-identifier

Replace common patient, clinician, and facility identifiers in pasted text, TXT, DOCX, or text-based PDF files locally in your browser.

Medication Reminder

Keep track of your daily medications and schedule reminders.

Medicine Dose Interval Timer

Track when the next paracetamol or ibuprofen dose is allowed and how many doses you have taken today. Follow your doctor's or the label's advice.

Medicine Spoon to Millilitre Converter

Convert teaspoon, tablespoon and dessertspoon medicine instructions into exact millilitres, and back again.

Medicine Timing Planner

Plan when to take thyroid medication and iron supplements around meals, tea, coffee, calcium and other tablets so they absorb properly.

Meditation Timer

A distraction-free sitting timer with synthesized bells, interval chimes, and a private session log.

Meeting Agenda Builder

Turn agenda topics with owners and durations into a timed running order — reorder items with move up and down controls, then copy the schedule with clock slots, a 10% buffer, end time and meeting cost.

Meeting Cost Calculator

Estimate meeting cost from attendees, duration, hourly rates, recurring frequency, and productivity loss.

Meeting Invite Wording Builder

Write a meeting invite with objective, time-boxed agenda, pre-read and decision owner, and see whether the agenda fits the slot.

Meeting Transcript Action Extractor

Extract action items, decisions, and key points from meeting transcripts automatically.

Meme Generator

Create funny memes easily

Memory Card Game

Test and train your memory by matching pairs of cards. Choose from multiple themes and difficulty levels.

Memory Palace Builder

Build virtual memory palaces using the method of loci — organize rooms and objects with associations to boost recall.

Memory Span Calculator

Measure your short-term memory span with digit, letter, and visual sequence tests. Track your span over time and learn the neuroscience behind it.

Menstrual Cup Size Finder

Cup size, length and firmness guidance from your age, birth history and a measured cervix height.

Mental Math Trainer

Train your brain with real-time mental math exercises across addition, subtraction, multiplication, percentages, and more.

Mental Rotation Test

Measure your spatial intelligence and ability to mentally manipulate shapes.

Merch Margin Calculator

Profit per merch unit after blank cost, printing, shipping, marketplace and payment fees, with returns, margin, markup and break-even price.

Merchant QR Tamper Comparator

Compare a trusted merchant UPI QR payload with a current one locally, highlighting deterministic field differences without opening or initiating payment.

Merge Blocks Game

Merge falling blocks of matching numbers to double their value and score high combos.

Meta Tag Generator

Generate SEO, Open Graph, and Twitter meta tags.

Meter Reading Tracker

Log water and gas meter readings, see daily and monthly usage, and spot leaks or unusual spikes before the bill arrives.

Metro vs Non Metro HRA Impact

Compare your Rule 2A house rent allowance exemption at the 50% metro cap against the 40% non-metro cap, and see the tax the difference is worth.

Metronome Practice Log

Log practice minutes and metronome tempos per exercise, then see totals, streaks, tempo gains and a next-session ladder.

Mic Test

Test your microphone online: live level meter, waveform and spectrum, peak and noise-floor dB, clipping alerts and a 5 or 10 second playback recording.

Mic Waveform Visualizer

Visualize live microphone audio as oscilloscope waves, frequency bars, circular forms, and responsive color spectra.

Mid-Upper Arm Circumference Tool

Read a MUAC tape measurement against the WHO colour bands used to screen children aged 6-59 months (informational only).

Mileage Reimbursement Calculator

Work out travel reimbursement from distance and a per-kilometre or per-mile rate, including two-tier rates and tolls.

Military Time Converter

Convert 12-hour AM/PM time to 24-hour military time and back from inputs like 7:30 pm or 1930, with pronunciation, zone letters and a full chart.

MIME Type Lookup Tool

Look up the MIME type for a file extension, or every extension for a MIME type, with charset and compression guidance.

Minesweeper

Play classic Minesweeper online free — clear the board, flag the mines, beat your best time.

Minor Child Investment Tax Checker

Check how a minor child's investment income is taxed under section 64(1A) clubbing, the Rs 1,500 section 10(32) exemption and the exceptions.

MIRR Calculator

Calculate a project's Modified Internal Rate of Return from its cash flows using separate finance and reinvestment rates.

Mirror Text Generator

Reverse your text so it reads backwards, character by character.

Missed Dose Guidance Helper

Work out how late a missed dose is, whether the half-interval rule points to taking it or skipping it, and when the next dose is due.

Mixed Number Calculator

Add, subtract, multiply and divide mixed numbers and fractions exactly, convert mixed ↔ improper ↔ decimal with repeating digits, and see every step.

Mobile Deep-Link Safety Inspector

Inspect intent URLs, custom schemes, and fallback redirect risks.

Mobile Voting App

Create real-time voting and polling apps for elections, team decisions, live events, and community feedback.

Mobility Aid Selection Guide

Match a cane, crutches, walker, rollator or wheelchair to your support, balance, stamina and grip needs, with correct fitting height.

Mocktail & Drink Mixer

Pick what is on your shelf and get alcohol-free drinks with exact ml ratios, scaling from one glass to a party pitcher.

Model Release Need Checker

Check whether your shoot typically needs a model or property release, based on use, recognisability and location.

Molecule Builder

Interactive 2D chemical structure molecule builder with valence bonding, molecular weight calculators, and VSEPR geometry identification.

Money Habit Score Tool

Score your saving, spending and planning habits against standard benchmarks like the 20% savings rate and a six-month emergency fund.

Monitor Brightness Match Guide

Match screen luminance to room light using the Lambertian lux-to-nits formula, the ISO 9241 3:1 surround ratio and the ISO 3664 80 cd/m2 floor.

Monitor Gamma Test Pattern

On-screen gamma match, step wedge, banding ramp and clipping patches to sanity-check a display's tone response.

Monitor PPI Calculator

Calculate monitor ppi values quickly with a simple, structured workflow.

Monorepo Tool Comparison

Compare Nx, Turborepo, Bazel, Lerna and pnpm workspaces on caching, orchestration, languages and setup — weighted to your priorities.

Monsoon Driving Readiness Checker

Check monsoon readiness: wet stopping distance from tread depth, aquaplaning speed from tyre pressure and a weighted pre-rain checklist.

Monte Carlo Risk Scenario Lab

Run seeded Monte Carlo simulations on a starting value, expected return, and volatility to reveal the outcome distribution and key percentiles.

Monthly Budget Planner

Plan monthly income, expenses, savings, and category-wise spending with a visual budget breakdown.

Monthly Fuel Budget Planner

Plan a household fuel budget across several vehicles — petrol, diesel or CNG — and see the km to trim if you are over the cap.

Mood Check Questionnaire

A nine-item informational mood self-check scored 0-27, with severity bands and a plain-language reading of the result.

Moon Phase Simulator

Interactive lunar phase simulator showing dual top-down orbital geometry and Earth-based illuminated moon phase visualization.

Moon Phase Today & Calendar

See today's moon phase, illumination and age, plus a full monthly calendar and upcoming new and full moon dates.

Morse Code Audio

Convert text to Morse code, listen to audible signals with customizable pitch, speed, and volume, and follow real-time visual highlight tracking.

Morse Code Trainer

Learn Morse code with interactive lessons, practice sessions, quizzes, audio playback, and progress tracking.

Morse Code Translator

Translate plain text to International Morse code, decode Morse back to text, and see the exact transmission time at any words-per-minute speed.

Mortgage Affordability Calculator

How much home you can afford, using the 28/36 debt-to-income rule.

Mortgage Calculator

Calculate monthly mortgage payments, total interest, and amortization schedule. Compare different down payments and interest rates.

Mosquito Net Fabric Calculator

Calculate mosquito net mesh off the roll, frame section and fixing tape for windows and doors, with a cutting plan and cost.

Motion Aftereffect Illusion

Watch moving patterns and experience static objects appearing to move using neuroscience-based visual illusions.

Motion Blur Shutter Angle Calculator

Convert between shutter angle and shutter speed at any frame rate, with 180-degree rule and mains flicker-safe settings.

Motion-Reduced Media Preview

Preview an uploaded GIF or video without autoplay, capture a still fallback locally, and review reduced-motion delivery choices.

Motivation Reminder

Schedule daily motivation reminders to keep you inspired and focused on your goals.

Motor Insurance IDV Calculator

Insured Declared Value from ex-showroom price and vehicle age using the motor tariff depreciation slabs, plus under-insurance impact.

Motorcycle Storage Checklist

Prepare a bike for long storage with fuel, battery and tyre steps generated from your duration, climate and battery type.

Mountain Quiz

Test your knowledge of the world's highest and most famous mountains — identify peaks, ranges, heights, and facts with timed quizzes and scoring.

Mouse Test

Test every mouse button online, catch double-click chatter to the millisecond, count scroll wheel ticks and estimate your mouse polling rate in Hz.

Mouthguard Care Checklist

Cleaning, drying and storage routine plus a replacement date for sports mouthguards and night guards, adjusted for how hard you use them.

Move Out Cleaning Checklist

Room-by-room end-of-tenancy cleaning list with time estimates and what the remaining work would cost against your deposit.

Moving Boxes Calculator

Estimate how many small, medium, large, dish and wardrobe cartons your home needs, plus tape, paper and bubble wrap.

Moving Truck Size Selector

Add up your furniture, appliances and cartons to get the packed volume and the smallest tempo or truck that will hold it.

MP3 Cutter / Audio Trimmer

Cut, trim, and export audio clips with browser-side controls.

MP4 to Base64

Convert a local MP4, WebM, MOV or OGV file into a Base64 data URL entirely in your browser.

MPG to KMPL Converter

Convert fuel economy between US mpg, imperial mpg, km/l, miles per litre and litres per 100 km using exact unit definitions.

MSME 45-Day Payment & 43B(h) Cost Calculator

Work out the MSMED Act section 15 due date, section 16 compound interest at three times the RBI bank rate, and what a section 43B(h) deferred deduction costs when payment slips past 31 March.

MSP Realisation Calculator

Compare what you actually net at the mandi after fees, commission and transport against the announced MSP.

MTTR and MTBF Calculator

Compute mean time to repair, mean time between failures, failure rate and resulting availability from real incident data.

Mudra Loan Category Selector

Find whether your PMMY Mudra loan falls under Shishu, Kishore, Tarun or Tarun Plus, with the limits and eligibility checks that apply.

Muhavara vs Lokokti Quiz

Exam-style quiz on telling Hindi muhavare from lokoktiyan, with the classification rule and a reason given for every answer.

Muhurat Terms Glossary

Plain-language glossary of Panchang and muhurat timing terms, with a calculator for Abhijit, Brahma Muhurta and Rahu Kaal windows.

Multi Currency Invoice Total Calculator

Total an invoice whose lines are priced in different currencies using exchange rates you enter yourself, then add tax.

Multi Length Bio Writer

Generate 50, 100 and 250 word bios in first or third person, with character checks for X, Instagram and LinkedIn.

Multi Time Zone Clock Tool

Compare current time across multiple browser-supported IANA zones.

Multi-Currency Payout Reconciler

Match payout CSVs against invoices, allowing for FX, fees and withholding.

Multi-Touch Tester

Visualize the simultaneous touch points your screen registers and the digitizer's response.

Multichannel Audio Mapper

Inspect, reorder and individually preview the channels in a stereo or surround file.

Multiline Prompt Joiner

Join a multi-line prompt into one escaped string literal for JSON, JavaScript, Python, Java, YAML or shell.

Multilingual Name Meaning Lookup

Look up a given name's documented meaning, root word and cognate forms across Sanskrit, Arabic, Hebrew, Greek, Latin and more.

Multiplication Table

Generate, customise, and visualise multiplication tables with patterns, charts, and export options.

Multitasking Ability Test

Test your brain's ability to handle multiple tasks simultaneously with this timed cognitive challenge combining math problems and visual tracking.

Muscle Gain Calorie Calculator

Lean bulk calories from Mifflin-St Jeor maintenance, a training-level gain rate and protein, fat and carb targets.

Museum Visit Time Estimator

Estimate how long a museum really takes from its size and your viewing pace, using measured per-object viewing times and museum-fatigue breaks.

Music Interval Calculator

Name the interval between any two notes, with semitone distance, cents, inversion and the just-intonation ratio.

Music Licensing Checklist Creator

Create a practical checklist for music usage rights, sync licensing, platform rules, credits and approval evidence.

Mutual Fund Exit Load Calculator

Exit load, STT and net proceeds when you redeem mutual fund units inside the scheme holding period, including the 10% free-exit allowance.

Mutual Fund XIRR Calculator

Calculate XIRR from irregular mutual fund investment dates, amounts and redemptions against today's value.

MX Record Priority Planner

Plan MX record preference values for single-provider, primary-plus-backup and provider-migration setups.

MySQL Visualization Tools

Visualize MySQL schemas, ER diagrams, relationships, query references, and export browser-generated diagrams in real time.