Calcon - Calculators & Tools
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About this app
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.
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💰 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.
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.
59+ free calculators & tools. GST, EMI, SIP, PDF & image tools. Works offline.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
🚀 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
📁 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
