42 Free Tools — No Registration · No Ads · Instant Results

Free Online Calculators
& Utility Tools

India's & USA's most-used free tools for financial planning, tax calculations, unit conversions and developer utilities — all in one place.

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42Free Tools
0Registration Needed
100%Free Forever
India & USAFocused Tools
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Financial Calculators & Investment Tools

SIP, EMI, FD, PPF, CAGR, HRA, GST and income tax calculators — built for Indian investors.

18 Tools
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SIP Calculator
Calculate SIP returns with step-up & inflation adjustment
ChartsStep-Up SIPInflation
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SWP Calculator
Systematic Withdrawal Plan for retirement income
Corpus TrackInflationStep-Up
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EMI Calculator
Loan EMI with full amortization schedule & charts
AmortizationInterest SplitAll Loans
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FD Calculator
Fixed deposit returns with compound & simple interest
Multiple BanksQuarterlyMaturity
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Advanced Loan Calculator
Loan analysis with prepayment & variable rates
PrepaymentVariable RatesSchedule
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Income Tax Calculator
Old vs New regime with all deductions for FY 2024-25
New/Old RegimeAll DeductionsTax Compare
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PPF Calculator
15-year PPF returns & tax-free maturity amount
15-Yr Lock-inTax-FreePartial Withdrawal
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GST Calculator
CGST, SGST, IGST for 5%, 12%, 18% and 28% slabs
All GST RatesCGST/SGST/IGSTInc/Excl
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NPS Vatsalya Calculator
Child pension planning under NPS Vatsalya scheme
Child PensionTax BenefitsLong-term
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Retirement Calculator
Full corpus planning with inflation & SIP requirement
Corpus PlanningInflation AdjSIP Req
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CAGR Calculator
Compound Annual Growth Rate for mutual funds & stocks
Year-wise ChartAbs ReturnsMF/Stock CAGR
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HRA Exemption Calculator
HRA tax exemption under Section 10(13A) of Income Tax Act
Old Tax RegimeMetro/Non-MetroTax Savings
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CTC to In-Hand Salary
Get exact take-home salary from CTC with PF & tax breakdown
New/Old RegimePF DeductionMonthly Breakup
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EPF Calculator
Employee Provident Fund maturity corpus at 8.25% interest
Year-wise GrowthEmployer MatchTax-Free
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Gratuity Calculator
Calculate gratuity under Payment of Gratuity Act 1972
Official FormulaTax-Free Limit5-Year Rule
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SSY Calculator
Sukanya Samriddhi Yojana returns at 8.2% — EEE tax status
8.2% InterestEEE Status80C Deduction
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Inflation Calculator
Purchasing power & future value with India CPI data
Past/Future ValueCustom RateYear-wise Chart
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Stamp Duty Calculator
Property stamp duty for 14 Indian states — men & women rates
14 StatesGender RatesRegistration Charges
🇺🇸

USA Finance & Tax Tools

Federal income tax, mortgage calculator, tip splitter, credit card payoff, GPA and sales tax for all 50 states.

9 Tools
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Tip Calculator
🇺🇸 USA
Split restaurant bills & calculate tips for any group size
Bill SplittingCustom %Per Person Cost
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US Income Tax 2024
🇺🇸 USA
2024 federal tax with all filing statuses & deductions
2024 Tax BracketsAll Filing StatusTax Savings
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Mortgage Calculator
🇺🇸 USA
Monthly payment with PMI, property tax, HOA & amortization
PMI Auto-detectHOA & TaxFull Amortization
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Credit Card Payoff
🇺🇸 USA
Payoff date, total interest saved & avalanche vs snowball
Payoff TimelineInterest SavedDebt Methods
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GPA Calculator
🇺🇸 USA
4.0 scale GPA with letter grades, credits & Latin honors
4.0 ScaleLetter GradesLatin Honors
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Sales Tax Calculator
🇺🇸 USA
Calculate sales tax for all 50 US states with 2024 rates
All 50 StatesReverse TaxPre/Post-Tax Price
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401k Calculator
🇺🇸 USA
Project 401k corpus with employer match & compound growth
Employer MatchYear-wise Chart2024 Limits
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Student Loan Payoff
🇺🇸 USA
Payoff timeline, interest saved & extra payment impact
Payoff DateInterest SavedAmortization
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Rent vs Buy Calculator
🇺🇸 USA
Net worth comparison — should you rent or buy a home?
Break-even PointNet Worth ChartTrue Cost
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Developer & Text Tools

JSON formatter, regex tester, Base64 encoder, URL encoder, MD5 hash generator and word counter.

13 Tools
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JSON Formatter & Validator
Format, validate, minify JSON with syntax highlighting
Syntax HighlightError DetectionMinify/Beautify
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Regex Tester
Real-time regex matching with group capture & pattern library
Live TestingGroup CapturePattern Library
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Base64 Encoder / Decoder
Encode & decode text and files to Base64 format
File UploadDrag & DropImage Preview
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URL Encoder / Decoder
Encode & decode URLs for safe web transmission
Safe EncodingValidationBatch Mode
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MD5 Hash Generator
Generate MD5, SHA-1, SHA-256 hashes & verify integrity
Multiple AlgosFile HashHash Compare
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Word Counter & Text Analyzer
Count words, characters, reading time & keyword density
Real-time CountKeyword DensityReading Time
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JWT Decoder
Decode & inspect JSON Web Tokens — header, claims, expiry
Header & PayloadExpiry CheckSample Tokens
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Hash Generator
MD5, SHA-1, SHA-256, SHA-512 hashes with verify tool
5 AlgorithmsReal-time HashHash Verify
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Color Converter
HEX ↔ RGB ↔ HSL ↔ HSV ↔ CMYK with live preview
5 FormatsColor PickerContrast Check
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UUID & ULID Generator
Generate UUID v4, v1, ULID and NanoID — bulk up to 100
UUID v4/v1ULIDBulk Generate
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Cron Generator
Build cron expressions visually with next run times
Visual BuilderNext 10 RunsPresets
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Diff Checker
Compare two texts side by side with line-by-line diff
Side-by-SideUnified DiffLCS Algorithm
Aa
Text Case Converter
Convert text to camelCase, snake_case, PascalCase, kebab-case & 11 more
15 Case FormatsReal-timeCopy All
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Converters & Utilities

Unit converter, live currency rates, timezone converter, Unix timestamp, WebP converter, image resizer and compressor.

7 Tools
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Unit Converter
Length, weight, temperature, area, volume and 50+ more units
50+ CategoriesReal-timeFormulas Shown
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Currency Converter
Live exchange rates for 170+ world currencies
Live Rates170+ CurrenciesHistorical Data
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Timezone Converter
Convert time between any two global time zones with DST
DST SupportMeeting PlannerWorld Clock
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Unix Timestamp Converter
Convert Unix timestamps to human-readable dates & vice versa
Millisecond SupportCustom FormatsBatch Convert
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WebP Image Converter
Convert PNG/JPEG images to WebP format client-side
Client-Side OnlyBatch ConvertQuality Control
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Image Resizer
Resize PNG, JPEG, WebP images by pixel or percentage — batch up to 10
Batch ResizeAspect Ratio LockNo Upload
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Image Compressor
Compress PNG, JPEG, WebP images up to 90% smaller in browser
Up to 90% SmallerBatch CompressBefore/After Preview
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General Calculators & Generators

Password generator, QR code maker, BMI, age calculator, percentage and number-to-words converter.

9 Tools
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Password Generator
Cryptographically secure passwords with strength meter & rules
Custom RulesStrength MeterBulk Generate
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QR Code Generator
Create QR codes for URLs, WiFi, contacts, text & more
Multiple TypesCustom DesignHigh Resolution
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Barcode Generator
Professional UPC, EAN, Code 128 and 15+ barcode formats
15+ FormatsPrint QualityDownload PNG
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Age Calculator
Exact age in years, months, days with zodiac sign & birthday
Precise CalculationNext BirthdayZodiac Sign
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Date Calculator
Differences, business days, add/subtract dates & holidays
Business DaysHoliday SupportWeekday Finder
%
Percentage Calculator
5 calculators: find %, change, increase, decrease & more
5 Calculator Modes% ChangeIncrease/Decrease
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BMI Calculator
Body Mass Index with healthy weight range & risk category
BMI CategoryHealthy RangeMetric & Imperial
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Number to Words Converter
Convert numbers to English words — Indian format (Lakhs, Crores)
Indian FormatCheque WritingLive Preview
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Feature Graphics Generator
Create Android Google Play 1024×500 feature graphics with templates
10+ TemplatesCustom ColorsDownload PNG

Why Choose FreeByte.in?

Everything you need, nothing you don't.

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Instant Results

All calculations happen in real-time in your browser. No server processing, no waiting.

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100% Free & Private

No account, no subscription, no data stored on our servers. Your inputs stay on your device.

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Mobile Friendly

Every tool is fully responsive and works flawlessly on phones, tablets and desktops.

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India & USA Focused

Dedicated tools for Indian users (GST, HRA, SIP) and US users (Tax, Mortgage, GPA).

Free Financial Calculators for India

FreeByte.in provides a complete suite of free financial calculators for Indian users. Our SIP calculator helps you plan mutual fund investments with step-up and inflation adjustments. The EMI calculator covers home loans, car loans and personal loans with full amortization tables.

Plan your taxes with our income tax calculator (Old vs New regime comparison), calculate GST for any product or service, and find your HRA exemption under Section 10(13A). All tools follow the latest RBI and Income Tax Department guidelines for FY 2024-25.

Popular India tools: PPF Calculator · FD Calculator · CAGR Calculator · SWP Calculator

Free Online Calculators for USA Users

Our USA-specific tools include a mortgage calculator with automatic PMI detection, property tax and HOA costs with a full amortization schedule. The US income tax calculator covers all 2024 federal tax brackets for Single, MFJ, MFS and Head of Household filers.

Use the credit card payoff calculator to find your debt-free date, or compare avalanche vs snowball methods. The sales tax calculator covers all 50 US states with current 2024 rates, and supports reverse tax calculation.

Popular USA tools: Tip Calculator · GPA Calculator · Sales Tax by State