Ultimate Tools for
Digital Productivity
33 free tools for PDF, Images, Finance, and AI — without ever uploading your files to a server.
📂 PDF Tools
4 tools available — View Hub
🎨 Image Tools
4 tools available — View Hub
💎 Finance Tools
10 tools available — View Hub
EMI Calculator
Plan home, car & personal loan repayments with amortization.
GST Calculator
Compute GST on goods & services across all Indian tax slabs.
SIP Calculator
Project mutual fund SIP growth and corpus over time.
Compound Interest
Forecast wealth accumulation with compound interest formula.
FD Calculator
Calculate Fixed Deposit maturity amount and interest earned.
RD Calculator
Plan your Recurring Deposit savings and final maturity value.
Salary Calculator
Calculate take-home pay after all Indian tax deductions.
Income Tax
Estimate your yearly income tax under old and new tax regimes.
HRA Calculator
Calculate your House Rent Allowance tax exemption amount.
Gratuity Calculator
Estimate employee gratuity payout on retirement or resignation.
🤖 AI & Writing
4 tools available — View Hub
🛠️ Utilities
11 tools available — View Hub
Age Calculator
Find your exact age in years, months and days from any date.
BMI Calculator
Calculate your Body Mass Index and healthy weight range.
IMEI Validator
Verify any 15-digit mobile IMEI number using the Luhn algorithm.
Unit Converter
Convert length, weight, temperature, speed and volume units.
Date Difference
Calculate the exact number of days between two dates.
Percentage Calc
Solve any percentage problem — increase, decrease, or of total.
PPI Calculator
Find your screen's pixel density in PPI or DPI instantly.
Battery Life
Estimate device battery runtime from capacity and usage.
Data Converter
Convert between KB, MB, GB and TB data storage units.
Data Cost
Calculate the price per GB of your mobile or broadband plan.
Storage Calculator
Estimate how many files fit on a drive of any size.
Why Professionals Trust OrangeTool
Privacy First
All tools use WebAssembly and Canvas APIs to process data locally. Your files never leave your device — no server, no logs.
Blazing Fast
No upload delays. Local processing delivers instant results for your images, documents and calculations.
Always Free
33 tools. Zero subscriptions. No hidden paywalls. Use every feature without creating an account.
Educational Guides & Resources
Deep dives into privacy, finance, and productivity.
Why Browser-Based?
Learn why client-side processing is the safest way to handle your documents.
GST Manual Math
The exact formulas used to calculate inclusive and exclusive GST in India.
QR Code Strategy
How to use QR codes effectively to drive engagement and customer action.
Frequently Asked Questions
Are all OrangeTool utilities completely free?
Yes. Every tool is 100% free with no subscriptions, sign-ups, or usage limits — ever.
Can I merge PDF files without uploading them to a server?
Yes. Our PDF Merge tool uses pdf-lib to combine documents entirely in your browser. Nothing is sent to a server.
Is the GST calculator accurate for Indian tax rates?
Yes. It supports all slabs — 5%, 12%, 18%, 28% — and calculates both inclusive and exclusive GST instantly.
Which browsers are supported?
All modern browsers — Chrome, Firefox, Safari, Edge (desktop & mobile). No plugins required.