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GST, Zakat, Gold Price, Profit Margin, TDS Calculator, Income Tax, Salary, BMI, AI Tools Directory and more — instant results, always free.

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🛠 All Free Tools
82 tools — no signup, works on any device
💰 Finance & Investment
🧾
Tax Calculator
GST Calculator
Add or reverse GST instantly. All slabs — 5%, 12%, 18%, 28%. CGST/SGST/IGST split shown.
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Tax Tool
GST Invoice Generator
Generate professional GST invoices with all mandatory fields. Download as PDF instantly.
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Tax Calculator
Income Tax Calculator
New vs old regime comparison for FY 2025-26. Includes 87A rebate, surcharge and cess.
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Salary Calculator
Salary / CTC Calculator
CTC to in-hand pay breakdown — PF, gratuity, HRA, LTA, special allowances, and tax impact.
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Finance Calculator
Gratuity Calculator
Gratuity amount on retirement or resignation, eligibility check, and the ₹20 lakh tax-free limit.
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Tax Calculator
HRA Calculator
HRA exemption using actual rent, 50%/40% salary rule, and metro vs non-metro calculation.
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Tax Tool
Rent Receipt Generator
Generate rent receipts instantly for HRA exemption claims. Download as PDF with all mandatory fields.
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Finance Tool
Currency Converter
Live exchange rates for 150+ currencies. INR to USD, EUR, GBP and more — updated in real time.
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Shopping Calculator
Discount Calculator
Sale price, percentage off, reverse discount, and final price with GST — 4 modes in one tool.
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Finance Calculator
Inflation Calculator
See how inflation erodes your money's value. What today's ₹1 lakh will be worth in 10, 20 or 30 years.
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⛽
Travel Calculator
Fuel Cost Calculator
Trip fuel cost by distance and mileage. Compare petrol, diesel, CNG and EV running costs.
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Math Calculator
Percentage Calculator
All 6 percentage modes — GST, discount, salary hike, marks, CGPA, percentage change and more.
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Lifestyle Calculator
Tip Calculator
How much to tip at restaurants, salons, hotels and delivery. Bill splitting for groups made easy.
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Finance Calculator
Gold Price Calculator
Calculate gold value by weight (grams, tola, kg) at live or custom rates. 24K, 22K and 18K purity supported.
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Business Calculator
Profit Margin Calculator
Calculate gross profit, net profit and markup percentage. Ideal for freelancers, sellers and small businesses.
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Tax Calculator
TDS Calculator
Calculate TDS deducted on salary, rent, professional fees and other payments. Section-wise TDS rates included.
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☪️
Islamic Finance
Zakat Calculator
Calculate your annual Zakat on savings, gold, silver and business assets based on current Nisab threshold.
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Finance & Tax
GSTIN Validator
Validate GST numbers and decode registration details instantly — state, PAN and checksum.
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Finance & Tax
PAN Card Validator
Validate PAN numbers and identify entity type instantly — individual, company, HUF and more.
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Finance Calculator
Savings Goal Calculator
Work out how much to save monthly to hit any target amount by a chosen date.
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Islamic Finance
Zakat on Gold & Silver Calculator
Calculate Zakat specifically on gold and silver holdings against the current Nisab threshold, by weight and purity.
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Finance Tool
Freelance Invoice Generator
Create a clean, professional invoice for freelancers who aren't GST-registered — no tax line, just PAN and payment details.
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Islamic Finance
Musharakah/Mudarabah Calculator
Calculate Sharia-compliant profit-sharing distribution between partners in a Musharakah or Mudarabah arrangement.
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Finance Calculator
Rent Split Calculator
Split shared rent fairly among roommates based on room size, amenities or a custom weighting.
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Business Finance
Break-Even Calculator
Find your break-even point in units and revenue based on fixed costs, price and variable cost per unit.
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Finance Calculator
Freelancer Rate Calculator
Work out the hourly or daily rate you need to charge based on your target income, expenses and billable days.
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Finance Tool
Salary Slip Generator
Generate a clean, professional salary slip with earnings, deductions and net pay breakdown for Indian payroll.
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⚕️ Health & Lifestyle
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Health Calculator
BMI Calculator
Body mass index with Indian ICMR and WHO categories, waist measurement guide and healthy range.
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Health Calculator
BMR Calculator
Basal metabolic rate using Mifflin-St Jeor formula, TDEE, calorie targets for weight loss or gain.
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Health Calculator
Calorie Calculator
Daily calorie requirements based on ICMR standards, age, gender, weight, height, and activity level.
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Health Calculator
Water Intake Calculator
Daily water intake target based on weight, activity level, and climate — in litres and glasses.
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Health Calculator
Ideal Weight Calculator
Ideal body weight using Hamwi, Devine and BMI methods. Indian body composition context included.
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Date Calculator
Age Calculator
Exact age in years, months, days and hours. UPSC, SSC, school admission cutoff date support.
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Health Calculator
Body Fat Calculator
Estimate body fat percentage using the U.S. Navy method — just tape measurements, no special equipment.
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Health Calculator
Macro Calculator
Daily protein, carb and fat targets based on your goal — cutting, maintenance, or bulking.
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Health Calculator
Waist-to-Height Ratio Calculator
Waist-to-height and waist-to-hip ratio — often a better health indicator for Indians than BMI alone.
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Health Calculator
Pregnancy Due Date Calculator
Estimate your due date from your last period or conception date, with trimester and week tracking.
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Health Calculator
Ovulation Calculator
Estimate your fertile window and predicted ovulation date based on your cycle length.
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Health Calculator
Running Pace Calculator
Convert pace to speed, and predict race times for 5K, 10K, half and full marathon.
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🔧 Utility, Writing & Developer Tools
⌨️
Productivity Tool
Typing Speed Test
Test your WPM and accuracy. 1, 2 and 5 minute modes. Government exam typing test practice.
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Developer Tool
JSON Formatter
Format, validate and minify JSON instantly. Syntax highlighting, error detection, tree view, download.
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🖼️
Media Tool
Image Compressor
Compress JPG, PNG and WebP images in your browser. No upload, no server — instant download.
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Developer Tool
Text Diff Checker
Compare two blocks of text and see every addition, deletion and change highlighted side by side.
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Developer Tool
Regex Tester
Test and debug regular expressions live. Match highlighting, pattern library, token explanations.
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Developer Tool
Base64 Encoder/Decoder
Encode and decode Base64 text and files instantly. Supports text, images, and URL-safe encoding.
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🔒
Security Tool
Password Generator
Strong, random passwords in one click. Custom length, symbols, numbers — nothing stored.
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📱
Generator
QR Code Generator
QR codes for URLs, WiFi, UPI payments, plain text and vCards. Download as PNG instantly.
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📝
Writing Tool
Word Counter
Words, characters, sentences, paragraphs and reading time in real time. Paste any text.
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✦
Writing Tool
Character Counter
Count characters with platform limits for Twitter, Instagram, LinkedIn, SMS, Google Ads, SEO.
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🔤
Text Tool
Case Converter
UPPERCASE, lowercase, Title Case, camelCase, snake_case and 7 more formats in one click.
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🔁
Text Tool
Word Repeater
Repeat any word, phrase or sentence a custom number of times. Useful for testing and filler text.
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🔢
Finance Tool
Number to Words
Convert numbers to words for cheques and legal documents. Indian lakh/crore and international formats.
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🎨
Design Tool
Color Picker
Pick colors and convert instantly between HEX, RGB, HSL. Generate palettes from any base color.
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🔄
Converter
Unit Converter
Length, weight, temperature, speed, data storage, area — including Indian units like bigha and tola.
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🎓
Education Tool
CGPA Calculator
CGPA to percentage for CBSE, Anna University, VTU and more. Grade point average made simple.
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📄
Design Tool
Lorem Ipsum Generator
Placeholder text in paragraphs, sentences or words for designers, developers and writers.
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📅
Date Calculator
Date Difference Calculator
Days, weeks and months between any two dates. Age difference, countdown to any event, and working days.
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🎲
Utility Tool
Random Number Generator
Random numbers in any range, multiple unique picks, dice rolls, coin flips — cryptographically random.
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Utility Tool
Colour Contrast Checker
Check WCAG AA and AAA accessibility compliance instantly — live contrast ratio for any two colours.
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#️⃣
Developer Tool
Hash Generator
MD5, SHA-1, SHA-256 and SHA-512 from any text instantly — runs entirely in your browser.
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Developer Tool
Meta Tag Generator
Generate SEO, Open Graph and Twitter Card meta tags instantly — copy-ready HTML.
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🗺️
Developer Tool
Sitemap Generator
Generate XML sitemaps for any website and download instantly — ready to upload.
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📜
Utility Tool
Terms & Privacy Analyser
Analyse legal documents for common red-flag clauses instantly — data sharing, arbitration and more.
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🕐
Developer Tool
Timestamp Converter
Convert Unix timestamps to readable dates in any timezone, including IST — and back again.
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🎨
Design Tool
CSS Gradient Generator
Build linear and radial CSS gradients visually and copy the ready-to-use code instantly.
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🖼️
Design Tool
Favicon Generator
Generate favicon.ico and all standard sizes from any image, ready to drop into your site.
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Developer Tool
Robots.txt Generator
Generate a valid robots.txt file with allow/disallow rules and sitemap reference in seconds.
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🔗
Developer Tool
URL Encoder/Decoder
Encode or decode URLs and query strings instantly — handles special characters and Unicode.
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🆔
Developer Tool
UUID Generator
Generate v4 UUIDs instantly, one at a time or in bulk — copy or download as a list.
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🎲
Utility Tool
Random Team Generator
Paste a list of names and split them into balanced random teams instantly.
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🌍
Utility Tool
Timezone Meeting Planner
Compare multiple timezones side by side to find the best meeting time for a remote team.
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🎓
Academic Tool
Final Grade Calculator
Work out what score you need on your remaining exams to hit your target final grade.
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🖼️
Academic Tool
Photo Resizer for Exams
Resize and compress your photo and signature to exact exam-form specifications instantly.
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📎
PDF Tool
PDF Merger
Combine multiple PDF files into one document, in the order you choose, entirely in your browser.
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🗂️
PDF Tool
Image to PDF Converter
Convert one or more images into a single PDF file, with page order and size options.
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✂️
PDF Tool
PDF Splitter
Split a PDF into individual pages or custom page ranges, downloaded instantly.
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📄
Career Tool
Resume Builder
Build a clean, ATS-friendly resume with live preview and download as PDF.
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✉️
Career Tool
Cover Letter Generator
Generate a tailored cover letter draft from your role, company and key skills in seconds.
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🔲
Utility Tool
Barcode Generator
Generate common barcode formats (CODE128, EAN-13 and more) instantly and download as an image.
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😂
Utility Tool
Meme Generator
Add top and bottom captions to any image and download your meme instantly.
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📝
PDF Tool
PDF to Word Converter
Extract text from a PDF into an editable Word-compatible document.
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📄
PDF Tool
Word to PDF Converter
Convert a Word document into a shareable, print-ready PDF file.
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Why ToolLoom?
Built for India, works everywhere
⚡
Instant Results
Every tool gives you answers in milliseconds. No loading spinners, no delays — just results.
🔒
No Signup Required
Zero accounts, zero emails, zero tracking. Use any tool anonymously, every single time.
🇮🇳
Built for India
GST slabs, UPSC cutoffs, ICMR BMI, UPI QR codes, INR formatting — designed for Indian users.
📱
Works on Any Device
Fully responsive — works perfectly on mobile, tablet and desktop without any app download.
📖
Deep Guides Included
Every tool has a companion guide — not just the calculator, but the full explanation of how and why.
🎯
Always Free
No subscription, no account, no tracking of your inputs. ToolLoom is and will always be free.
📖 Latest Guides
In-depth articles updated for June 2026
View all 76 guides →
☪️ Islamic Finance Guide

Zakat Calculator Guide: How to Calculate Zakat on Wealth, Gold & Savings (2026)

Nisab threshold for 2026, 2.5% on eligible wealth, Zakat on gold, silver, savings and business assets — with scholarly references.

📅 Jul 2026 · 9 minRead →
🥇 Finance Guide

Gold Price Calculator Guide: How to Calculate Gold Value by Weight & Purity in India

How gold price is calculated per gram, tola and sovereign, the 24K vs 22K vs 18K purity difference, and how making charges affect total cost.

📅 Aug 2026 · 8 minRead →
💼 Salary Guide

Salary Calculator India: CTC, In-Hand Pay, PF, Gratuity & Tax Explained

How CTC breaks down into take-home pay, PF contributions, HRA, LTA, and new vs old regime impact on your monthly salary.

📅 Jun 2026 · 10 minRead →
🧮 Tax Guide

GST Calculator Guide: All Slabs, Reverse GST & How to Calculate

GST slabs 0%%–28%%, inclusive vs exclusive, CGST/SGST/IGST split, reverse GST formula, and the composition scheme explained.

📅 May 2026 · 10 minRead →
🏠 Tax Guide

HRA Calculator India: How to Calculate HRA Exemption & Maximise It

The three-condition HRA formula, metro vs non-metro rules, HRA vs home loan deduction choice, and Form 12BB filing.

📅 Jun 2026 · 9 minRead →
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Explore the AI Hub

A curated directory, a ready-to-use prompt library, and a quiz that matches you to the right tool — all free.

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Directory

AI Tools Directory

Discover the best free and paid AI tools for writing, coding, image generation, video and productivity — curated and reviewed.

🛠 62 Tools 📅 Updated Weekly
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Prompt Library

AI Prompts Library

Ready-to-use, tested prompts for writing, coding, business, image generation, productivity and study — copy and go.

📝 39 Prompts 📂 6 Categories
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