Free Online Tools — Fast & Private

Simple Interest Calculator

Calculate simple interest and maturity value, reverse-solve principal, rate or time, compare annual compounding, and export the schedule.

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.

Debt-to-Income Ratio Calculator

Calculate front-end and back-end DTI from gross income, housing costs, and required monthly debts, then compare planning targets.

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.

Savings Goal Calculator

Calculate the monthly amount needed for a savings target, check a planned contribution, adjust for inflation, and export a yearly projection.

Fixed & Recurring Deposit Calculator

Calculate FD or RD maturity, total deposits, compound interest, effective annual yield, and a downloadable year-wise schedule.

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 net ROI, profit or loss, CAGR, real return and target growth with fees, taxes, portfolio assumptions, and CSV export.

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

Add GST or extract it from inclusive values. Compare CGST, SGST and IGST scenarios for single or multiple items with common and custom rates.

Salary Calculator

Convert annual, monthly, semi-monthly, bi-weekly, weekly, daily, and hourly pay. Compare overtime and estimate take-home pay with a custom deduction rate.

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.

Tip Calculator & Bill Splitter

Calculate tips before or after tax, split a bill equally or by custom weights, round payments, and export a per-person breakdown.

Quotation & Estimate Generator

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

Invoice Generator

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

Developer Tools17 tools

JSON Formatter

Format, validate, and minify JSON with line-aware errors, structure statistics, file upload, copy, and download tools.

JSON to TypeScript Converter

Generate TypeScript interfaces or type aliases from JSON with nested inference, array sample merging, syntax feedback, copy, and .ts downloads.

Number Base Converter

Convert signed integers and fractions across bases 2–36 with exact large-number arithmetic, prefix detection, common-base comparisons, copy, and TXT export.

XML Formatter & Validator

Beautify, minify, and validate well-formed XML with syntax feedback, document statistics, file import, copy, and download tools.

YAML ↔ JSON Converter

Convert YAML and JSON in either direction with YAML 1.2 parsing, syntax feedback, multi-document support, statistics, copy, and downloads.

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 and decode UTF-8 text with standard Base64 or Base64URL, input validation, optional padding, copy controls, and TXT downloads.

Unix Timestamp Converter

Convert epoch seconds through nanoseconds to UTC, local, ISO, and HTTP dates with exact unit conversion and timestamp differences.

Markdown Editor & HTML Converter

Write and preview Markdown, convert it to safe HTML, inspect document stats, and export HTML, MD, or TXT files locally.

JWT Decoder, Debugger & Token Inspector

Decode JWT headers and claims locally, inspect exp, iat and nbf timestamps, detect malformed segments, and export decoded JSON without uploading tokens.

Hash Generator & Checksum Verifier

Generate MD5 and SHA digests from UTF-8 text or files, compare expected checksums, copy every result, and export locally in your browser.

UUID v4 / GUID Generator & Validator

Generate UUIDv4 and GUID values locally, validate versions and variants, choose canonical, compact, uppercase, or URN output, and export bulk lists.

Image to Base64 Converter & Decoder

Convert PNG, JPEG, WebP, GIF, AVIF, and SVG images to Base64 data URLs and code snippets, or decode Base64 into downloadable images locally.

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 URL components or complete URLs, decode UTF-8 percent sequences, inspect query parameters, and process multiple lines locally.

IPv4 Subnet Calculator & CIDR Tool

Calculate IPv4 CIDR ranges, network boundaries, masks, usable hosts, RFC 3021 /31 links, AWS capacity, binary bits, and equal-size subnet splits.

Cron Expression Builder & Validator

Build and validate 5-field or 6-field cron schedules with timezone-correct previous and next runs, presets, compatibility checks, and copy-ready snippets.

PDF & Documents6 tools

Lossless PDF Compressor

Reduce PDF structural overhead without downsampling images or rasterizing pages. Remove unused revisions, thumbnails, or metadata locally.

PDF Merger

Merge multiple PDF files into one document for free. Drag to reorder, review and select individual pages, and 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.

Audio & Media8 tools

Audio Cutter & Ringtone Maker

Trim audio with a waveform or exact timestamps, add fades and gain, preview the processed clip, and export MP3, WAV, OGG, or M4A privately.

Audio Converter

Batch convert audio to MP3, WAV, M4A, OGG, AAC, or FLAC with bitrate, sample-rate, channel, preview, and ZIP controls in your browser.

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, fit mixed clips, preserve source dimensions, preview, and export locally.

Audio Speed Changer

Change audio speed from 0.25x to 4x, preserve pitch, apply natural resampling, or shift pitch by semitones. Preview and export privately.

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.

Image & Design11 tools

Color Picker & Image Color Extractor

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

Color Contrast Checker

Check foreground and background colors against WCAG 2.2 AA and AAA requirements for text, UI indicators, and graphics.

Aspect Ratio Calculator

Simplify aspect ratios, calculate matching width or height, preview proportions, copy CSS, and export common pixel dimensions.

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.

EXIF Metadata Viewer & Remover

Inspect common EXIF, GPS, camera, date, IPTC, and XMP details, then export a cleaned JPEG, PNG, or WebP copy locally.

Favicon Generator & ICO Maker

Create favicon.ico, PNG browser icons, an Apple touch icon, Android app icons, a web manifest, and installation HTML locally.

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.

Health & Fitness5 tools

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 & Education11 tools

Word Counter & Character Counter

Count Unicode words, visible characters, sentences, paragraphs, reading time, keyword density, and English readability privately in your browser.

Typing Speed Test

Measure WPM, CPM, and typing accuracy across timed words, code, numbers, symbols, quotes, and paragraph modes, with private progress tracking.

CGPA & GPA Calculator

Calculate credit-weighted GPA, SGPA and cumulative CGPA, convert CGPA and percentage, compare semesters, and plan a target CGPA.

Attendance Percentage Calculator

Calculate current and weighted subject-wise attendance, classes needed for 75% or any target, and classes you can miss. Save privately or export CSV.

Grade Calculator

Calculate point and weighted course grades, letter grades, current standing, and the score needed on remaining work to reach a target.

Study Time Planner

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

Countdown Timer & Stopwatch

Run an accurate countdown with presets and alerts, or measure elapsed time with stopwatch laps, split times, copying, and CSV export.

Random Picker & Wheel Spinner

Paste names or choices, spin an animated wheel, or pick one or multiple random winners with duplicate controls and downloadable round history.

Pomodoro Timer

Run customizable focus, short-break, and long-break cycles with an accurate countdown, generated chime, notifications, shortcuts, and daily tracking.

Work Hours & Timesheet Calculator

Calculate shift hours, unpaid breaks, regular time, overtime, and estimated gross pay across a weekly timesheet, then copy or export the results.

Resume Builder

Build a professional resume with 8 templates, optional photo cropping, mobile editing, live preview, draft saving, and private multi-page PDF export.

Calculators & Utilities3 tools

Calculators & Utilities

Unit Converter

Convert measurement, storage, pressure, energy, and power units with precision-aware results and practical presets.

Calculators & Utilities

Percentage Calculator

Calculate proportions, increases, decreases, reverse percentages, percentage points, relative change, and percentage difference.

Calculators & Utilities

Electricity Bill Calculator

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

Text & Writing5 tools

Text Cleaner & Duplicate Line Remover

Remove repeated lines, trim whitespace, control blank lines, preserve order, and download clean text privately in your browser.

Readability Score Checker

Check English reading ease, grade level, sentence complexity, and six readability formulas with private browser-based analysis.

Word Frequency & Keyword Density Checker

Analyze word and phrase frequency, keyword density, stop words, exclusions, lexical variety, and repetition privately with CSV export.

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 Compare & Diff Checker

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

Marketing & Analytics2 tools

Marketing & Analytics

Free QR Code Generator (SVG Download)

Create static QR codes for URLs, text, Wi-Fi credentials, email, phone, SMS, and vCards with SVG or PNG download.

Marketing & Analytics

Free UTM Link Builder & URL Analyzer

Build campaign URLs, preserve existing parameters and fragments, normalize tags, and analyze UTM or advertising click IDs.

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.