Free Online Tools — Fast & Private

Adult BMI Calculator

Calculate adult BMI with metric or imperial units and view BMI Prime, category, and a healthy-weight screening range.

TDEE & BMR Calculator

Estimate resting energy, activity-adjusted TDEE, maintenance calories, and percentage-based planning targets in metric or imperial units.

Body Fat Percentage Calculator

Estimate adult body fat percentage from height and tape measurements with metric or imperial units and optional fat-mass results.

Calorie Deficit & Weight-Loss Planner

Estimate BMR, maintenance calories, calorie deficit, weekly weight change, goal timeline, BMI, and a changing-weight forecast.

Running Pace & Race-Time Calculator

Calculate pace, finish time, or distance, convert min/km and min/mile, build split plans, and predict common race times.

Date & Time4 tools

Age Calculator

Calculate age on any date in years, months and days, see elapsed time and birthday milestones, or compare two ages.

Date Duration Calculator

Calculate years, completed months, weeks, total days, weekdays, weekends, hours, minutes, and seconds between two calendar dates.

Time Zone Converter & Meeting Planner

Convert global dates and times, handle DST edge cases, compare working hours, find meeting overlaps, and download ICS events.

Business Days Calculator

Count working days between dates or add and subtract business days with custom weekends, holidays, boundary rules, progressive breakdown, and CSV export.

Productivity & Education7 tools

Word Counter & Character Counter

Count words, characters, sentences, paragraphs, and reading time instantly. Perfect for writers, students, bloggers, marketers, and SEO professionals.

Typing Speed Test

Free typing speed test with live WPM, CPM, and accuracy tracking. Multiple practice modes including code, numbers, symbols, and quotes, plus historical statistics charts and arcade-style typing games. 100% browser-based.

CGPA & GPA Calculator

Quickly convert CGPA and percentage, calculate weighted semester GPA and cumulative CGPA, compare semesters, and plan a target CGPA.

Attendance Percentage Calculator

Calculate current attendance, classes needed to reach 75% or any target, classes you can miss, and weighted subject-wise attendance.

Grade Calculator

Calculate grades from points, weighted course categories, letter grades, and the score needed on remaining work to reach a target grade.

Study Time Planner

Calculate focused study capacity, prioritize subjects by workload and difficulty, and create a balanced day-by-day session schedule.

Resume Builder

Build a professional resume online for free with optional profile photo, interactive crop, 8 templates, live preview, and instant PDF download. 100% browser-based — no sign-up, no watermarks.

Text & Writing2 tools

Text & Writing

Text Case Converter

Convert text to title, sentence, upper, lower, camel, Pascal, snake, constant, and URL slug formats with analytics, undo, copy, and TXT download.

Text & Writing

Text Compare & Diff Checker

Compare two text versions by line, word, or character with responsive highlights, similarity statistics, ignore options, file import, and diff download.

Calculators & Utilities3 tools

Calculators & Utilities

Unit Converter

Convert length, weight, temperature, area, speed, volume, time, storage, pressure, and energy units accurately.

Calculators & Utilities

Percentage Calculator

Calculate percentages, increases, decreases, reverse values, percentage points, and relative percentage changes instantly.

Calculators & Utilities

Electricity Bill Calculator

Estimate electricity bills from units or multiplied meter readings with flat or slab tariffs, appliances, and savings scenarios.

Finance & Investment23 tools

Simple Interest Calculator

Calculate simple interest, maturity value, and total repayment instantly. Perfect for loans, savings, investments, and educational purposes.

Free EMI Calculator (Home, Car & Personal Loan)

Calculate EMI, monthly payments, total interest, and total repayment for home loans, car loans, personal loans, and mortgages. Free online loan calculator with instant results.

Home Loan Prepayment Calculator

Compare lump-sum and recurring home-loan prepayments, reduced EMI or tenure, interest savings, and a complete amortization schedule.

Credit Card Payoff Calculator

Calculate payoff time, required monthly payment, total interest, extra-payment savings, and a complete credit card repayment schedule.

Debt Snowball & Avalanche Calculator

Compare multiple-debt snowball and avalanche plans, interest costs, payoff dates, rollover payments, and complete monthly schedules.

Loan Eligibility Calculator

Estimate loan eligibility from income, existing EMIs, interest rate, tenure, and FOIR. Compare joint income, a desired loan, rate stress, and repayment.

Fuel Cost & Mileage Calculator

Calculate trip fuel cost, fuel required, mileage, cost per passenger, and MPG conversions with tolls and vehicle comparisons.

SIP Calculator

Calculate SIP returns, future investment value, wealth growth, and inflation-adjusted corpus. Supports Step-Up SIP and SIP + Lumpsum planning.

SWP Calculator

Project systematic withdrawals, corpus longevity, increasing income, return scenarios, sustainable withdrawals, and required starting corpus.

Retirement Corpus & Income Calculator

Estimate retirement corpus, inflation-adjusted income, required monthly savings, corpus longevity, return scenarios, and yearly projections.

Compound Interest Calculator

Calculate compound interest, investment growth, future value, recurring contributions, and long-term savings projections with detailed yearly breakdowns.

Crypto Profit Calculator

Calculate cryptocurrency trading profits, losses, ROI, ROE, leverage exposure, fees, and liquidation risk for long and short positions.

Inflation & Purchasing Power Calculator

Estimate future prices and purchasing power, compare official CPI index values, calculate real investment returns, and project future expenses.

Investment ROI Calculator

Calculate ROI, CAGR, net profit, annualized returns, and investment growth. Compare stocks, real estate, businesses, and long-term portfolio performance instantly.

Freelance Rate & Income Calculator

Calculate your ideal freelance hourly, daily, or project rates based on income goals, taxes, business expenses, and billable hours.

GST Calculator

Calculate GST-inclusive and GST-exclusive amounts instantly. View CGST, SGST, IGST, taxable value, and final invoice totals with support for common Indian GST slabs.

Salary Calculator

Convert salary between annual, monthly, bi-weekly, weekly, daily, and hourly pay. Calculate overtime and estimate take-home pay after taxes.

Salary Hike Calculator

Calculate revised salary, hike percentage, monthly increase, fixed and variable pay, take-home impact, prorated gain, and future salary growth.

Profit Margin Calculator

Calculate net profit, margin, markup, target selling price, maximum cost, break-even price, discounts, and selling fees.

Break-Even Calculator

Calculate break-even units or revenue, contribution margin, target-profit sales, forecast profit or loss, and margin of safety.

Discount & Final Price Calculator

Calculate final price, total savings, stacked discounts, coupons, tax, shipping, original price, and discount percentage.

Quotation & Estimate Generator

Create professional quotations and estimates with templates, logo, tax, discounts, deposit, exact preview, and private multi-page PDF export.

Invoice Generator

Create professional invoices with templates, logo upload, tax, discounts, payments, exact preview, and private multi-page PDF export.

Developer Tools13 tools

JSON Formatter

Format, validate, beautify, and minify JSON instantly. Detect syntax errors and improve readability for APIs and applications.

CSV ↔ JSON Converter

Convert CSV to JSON and JSON to CSV with quoted-field parsing, auto delimiters, type inference, nested flattening, preview, and downloads.

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 strings instantly. Secure browser-based converter for API testing, authentication headers, tokens, and developer workflows.

Unix Timestamp Converter

Convert epoch seconds, milliseconds, microseconds, or nanoseconds to UTC and local dates—and convert dates back.

Markdown Editor & HTML Converter

Write, preview, and convert Markdown to clean HTML instantly. Features live rendering, syntax reference, and one-click HTML export.

JWT Decoder, Debugger & Token Inspector

Decode JSON Web Tokens (JWT) instantly. Inspect headers, payload claims, expiration timestamps, algorithms, and token metadata securely in your browser.

Hash Generator — MD5, SHA-256 & SHA-512

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files. Verify downloads, debug API signatures, and compute checksums in your browser.

UUID / GUID Generator (RFC 4122 v4)

Generate cryptographically secure UUID and GUID values instantly. Supports bulk generation, uppercase formatting, hyphen removal, and export-ready identifier lists.

Image to Base64 Encoder

Convert PNG, JPG, WebP, SVG, GIF, and AVIF images into Base64 Data URI strings instantly. Generate HTML, CSS, JavaScript, and JSON-ready output formats entirely in your browser.

Regex Tester & Cheat Sheet

Test, debug, and validate regular expressions in real time with instant match highlighting, capture group analysis, flag controls, and an integrated regex reference guide.

URL Encoder & Decoder

Encode URLs, query parameters, and special characters safely for web applications. Decode percent-encoded strings instantly with real-time client-side conversion and validation.

Subnet Calculator & CIDR Network Tool

Calculate subnet masks, CIDR ranges, usable hosts, network IDs, broadcast addresses, wildcard masks, and IPv4 network boundaries instantly.

Cron Expression Builder

Build cron schedules visually with plain-English descriptions, timezone-aware next run preview, presets for GitHub Actions & crontab, and copy-ready snippets. 100% browser-based — no server required.

Marketing & Analytics2 tools

Marketing & Analytics

Free QR Code Generator (SVG Download)

Create QR codes instantly for websites, text, Wi-Fi passwords, contact details, and business cards. Download high-quality SVG QR codes for free with secure browser-based generation.

Marketing & Analytics

Free UTM Link Builder & URL Analyzer

Build, normalize, analyze, and reload GA4 campaign URLs with core UTM tags, campaign IDs, and source-platform parameters.

Security & Privacy1 tools

Security & Privacy

Password Generator & Strength Checker

Generate unbiased cryptographic passwords and check patterns, search-space estimates, and password safety locally in your browser.

Image & Design7 tools

Color Picker & Image Color Extractor

Extract HEX, RGB, HSL and CSS colors from images. Generate color palettes and copy values instantly.

SVG Converter & Optimizer

Convert SVG to PNG, JPG, WebP, and PDF at any scale. Optimize and minify SVG files. Live preview, code editor, batch convert.

Image Compressor

Compress JPEG, PNG, WebP and GIF images online. Adjust quality, resize, convert format, and batch compress.

Image Format Converter

Convert images between JPEG, PNG, WebP, and BMP formats online. Batch convert multiple images, adjust quality, handle transparency. 100% browser-based — files never uploaded.

Image Resizer

Resize images by pixels or percentage, choose Fit or Crop, export JPEG, PNG or WebP, and download batches locally.

Passport Photo & Signature Resizer

Resize document photos and signatures to exact pixels, common print sizes, DPI, format, quality, and KB limits without uploading files.

Image Cropper

Crop images online with drag-and-resize controls, aspect ratio presets, rotate, flip, zoom, and live preview. Export as JPEG, PNG, or WebP. 100% browser-based.

Audio & Media8 tools

Audio Cutter & Ringtone Maker

Cut MP3, WAV, M4A and OGG files online. Trim audio, create custom ringtones, preview changes, and download instantly without uploading your files.

Audio Converter

Convert MP3, WAV, M4A, OGG, AAC, FLAC and other audio formats directly in your browser. Fast, secure and completely free.

Free Audio Joiner Online

Merge MP3, WAV, M4A, OGG, FLAC, and other files in your browser. Reorder, trim, crossfade, choose output quality, preview, and download privately.

Free Video Joiner Online

Join MP4, MOV, WebM, MKV, and AVI videos privately. Reorder, trim, mute, resize mixed clips, preview, and export MP4 or WebM.

Audio Speed Changer

Change audio playback speed from 0.25x to 4x with or without pitch preservation. Independent pitch shifting in semitones. Supports MP3, WAV, OGG, M4A, FLAC

Audio Volume Booster

Make MP3, WAV, and other audio louder with adjustable gain, smart normalization, compression, limiting, live preview, and private browser export.

Video Compressor

Compress MP4, MOV, WebM, and MKV videos in your browser. Quality presets, resolution scaling, and MP4/WebM export — 100% client-side, no uploads.

Video to MP3 Converter

Extract audio from MP4, MOV, WebM, and MKV. Convert to MP3, M4A, OGG, or WAV in your browser with bitrate control — 100% client-side, no uploads.

PDF & Documents5 tools

PDF Merger

Merge multiple PDF files into one document for free. Drag to reorder, preview and select individual pages, rotate pages before combining.

PDF Splitter

Split a PDF into multiple files online. Split by custom page ranges, every N pages, individual pages, or manual selection.

PDF Page Extractor

Extract specific pages from a PDF using visual thumbnails. Select individual pages, ranges, or odd/even pages, then export as one combined PDF or separate files.

Image to PDF Converter

Convert JPG/JPEG, PNG, WebP, GIF, and BMP images into a single PDF document. Reorder, rotate, and resize before converting.

PDF to Image Converter

Convert PDF pages to PNG, JPEG, or WebP images online. Select pages, choose DPI up to 600, preview thumbnails, and download as ZIP. 100% browser-based — files never uploaded.