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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
50 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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⚕️ Health & Lifestyle
⚖️
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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🔧 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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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 57 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 →
✦ New Section · Updated Daily
AI Tools Directory

Discover the best free and paid AI tools for writing, coding, image generation, video and productivity — curated and reviewed for 2026.

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💬 Chatbots ✍️ Writing 💻 Coding ⚡ Productivity 🎨 Image Gen 🎬 Video

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