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🚀 Improved navigation and Back button behavior 📁 Improved file saving and download handling 🖼️ JPG, PNG & WebP images can now be combined into a single PDF 📄 Improved PDF saving and Split PDF experience 🕘 Recently Used now shows your actual recently used tools 🛠️ Fixed file naming, duplicate files and other stability issues ⚡ General performance and reliability improvements
59+ free calculators & tools. GST, EMI, SIP, PDF & image tools. Works offline.
Calcon brings 59+ free tools and calculators into one fast, offline-first app — no sign-up, no ads, and nothing you type ever leaves your device. From GST and income tax to SIP, EMI, and PDF tools, everything works instantly and offline. Built for India. ━━━━━━━━━━━━━━━━━━━━ 💰 FINANCIAL CALCULATORS GST Calculator · Income Tax Calculator (FY 2026-27, old vs new regime) · EMI Calculator · SIP Calculator · PPF · FD · RD · Salary/CTC · HRA · TDS · Gratuity · NPS · Sukanya Samriddhi · Compound Interest · CAGR and more. 🩺 HEALTH & MATH BMI · BMR · Calorie · Pregnancy Due Date · Percentage · Age Calculator · Scientific Calculator and more. 🎓 EDUCATION CGPA to Percentage · GPA · Marks Percentage and more. 📄 PDF TOOLS JPG to PDF · Merge PDF · Split PDF · Rotate PDF · Remove Pages — all processed on your device. 🖼️ IMAGE TOOLS Image Resizer · Image Converter · Image Cropper · Image to Text (OCR, works offline in English, Hindi & Marathi). 🛠️ DEVELOPER & TEXT TOOLS JSON Formatter · Regex Tester · Base64 · Color Picker · CSS Gradient · QR Code Generator · Password Generator · Word Counter · WhatsApp Link Generator and more. ━━━━━━━━━━━━━━━━━━━━ ✅ WHY CALCON - 100% Free — no ads, no hidden charges - No sign-up, no login — open and use instantly - Works offline — most tools need no internet - Privacy-first — your calculations and files stay on your device - Indian-focused — GST, tax slabs, PPF, and schemes built for India - Instant results with clear visual breakdowns and charts - Save your favorite tools and calculations for quick access Whether you're a student, salaried professional, business owner, developer, or just need a quick calculation — Calcon has a tool for it, all in one place. Download Calcon and get things done — free, offline, and private.