Free Online Tools & Calculators
All SIWTECH tools are free, work in your browser and need no sign-up. Pick a calculator below for tax and Zakat in Pakistan, marketplace seller profit (Daraz, Amazon, eBay, Shopify, Etsy, Walmart, Noon), SEO writing, or everyday developer tasks.
Pakistan Finance Calculators
- Pakistan Income Tax Calculator 2026-27 — FBR salary and business tax using the Finance Act 2026 slabs, with monthly deductions.
- Zakat Calculator Pakistan — Zakat on gold, silver, cash and business assets using the current nisab.
- Currency Converter (PKR) — Convert PKR to USD, SAR, AED, GBP, EUR and 20+ currencies with daily rates.
E-commerce Seller Profit Calculators
- Daraz Profit Calculator — Commission, payment fee, WHT and net profit for Daraz Pakistan sellers.
- Amazon FBA Profit Calculator — Referral, FBA fulfilment and storage fees, FBA vs FBM comparison.
- eBay Profit Calculator — Final value fee, per-order fee, store plans and Top Rated Seller discount.
- Shopify Profit Calculator — Compare Basic, Grow, Advanced and Plus plans and payment fees.
- Etsy Profit Calculator — Listing, transaction and payment processing fees with net profit.
- Walmart Profit Calculator — Walmart Marketplace referral fees, WFS fulfilment and profit.
- Noon Profit Calculator — Noon fees and profit for sellers in the UAE, Saudi Arabia and Egypt.
SEO & Writing Tools
- Keyword Density Checker — Check keyword frequency and density in your content.
- Meta Tag Generator — Create SEO title, description and Open Graph tags.
- URL Slug Generator — Turn any title into a clean, SEO-friendly URL slug.
- Word Counter — Count words, characters, sentences and reading time.
- Readability Checker — Flesch reading ease and grade level for any text.
- AI Text Detector — Estimate whether text was written by AI.
- Text Case Converter — Convert text to UPPERCASE, lowercase, Title Case and more.
- Lorem Ipsum Generator — Generate placeholder text by paragraphs, sentences or words.
Developer & Everyday Utilities
- JSON Formatter & Validator — Beautify, minify and validate JSON.
- Base64 Encoder / Decoder — Encode and decode text and files to Base64.
- Binary Converter — Convert between text, binary, decimal, hex and octal.
- Color Code Converter — Convert HEX, RGB, HSL and CMYK colour codes.
- QR Code Generator — Create QR codes for links, WiFi, vCards, email and more.
- Password Generator — Create strong, random passwords in your browser.
- YouTube Thumbnail Downloader — Download any YouTube video thumbnail in HD.
Need a website, e-commerce store or digital marketing help? Visit SIWTECH Solutions.