ToolNest: privacy-first Android tools.

PDF Tools

• PDF Merger — combine multiple PDFs into one
• PDF Splitter — extract selected pages from a PDF
• Image to PDF — convert photos into a PDF document

Image Tools

• Image Compressor — reduce file size with quality, format, resize options, and batch ZIP download
• Passport Photo — create passport-size photo sheets with crop, brightness, and border controls

Financial Calculators

• Loan EMI Calculator — real-time EMI, extra payments, savings, amortization schedule, and PDF export
• SIP Calculator — investment returns with frequency options and donut-chart summary
• FD Calculator — cumulative and non-cumulative payouts with year-by-year growth schedule

Invoice Generator

Create professional invoices with company/customer details, line items, GST/tax, discounts, live preview, theme colours, PDF export, and email — all offline.

Converters

• Currency Converter — 160+ currencies with live rates and offline cached rates
• Area Converter — metric, imperial, and South-Asian land units

Utilities

• QR Code Generator — create scannable QR codes from text or URLs
• Password Generator — customisable length and character sets
• Color Picker — HSV sliders with hex, RGB, and CMYK values
• Lorem Ipsum Generator — paragraphs or words for design mockups
• Video Merger — combine multiple videos into a single MP4

Privacy First

• No sign-up required
• No data leaves your device
• No ads, no tracking
• Fully offline, except live currency rates

Tech Details

• Material Design 3 with dark theme and dynamic colours (Android 12+)
• Android 8.0 (API 26) and above
• Built with Jetpack Compose

Reminders

• Create medicine reminders in seconds
• Set dosage, time, and repeat interval
• Scheduled notifications when it's time to take them
• Mark reminders as Taken, Snooze, or Skip

Schedule & History

• View today's medicine schedule
• Review your medication history
• Restores reminders after a restart or time-zone change
• Works offline — no account required

Private by Design

• Reminders and history stored locally on your device
• No data sent to a server
• No ads, no tracking
• Not medical advice — always follow your doctor or pharmacist

Tech Details

• Material Design 3
• Android 8.0 (API 26) and above
• Built with Jetpack Compose
• Local storage with Room and DataStore

Instant EMI

• Enter amount, interest rate, and tenure — results update as you type
• No button required
• Indian Rupee (₹) support

Extra Payments

• Monthly extra payment amount
• One-time extra payments with specific dates
• See interest saved and tenure shortened

Schedule & Export

• Month-by-month amortization: EMI, interest, principal, balance
• Compare with vs without extra payments side by side
• Total interest, total paid, tenure, and exact savings
• Export a complete PDF report — summary, comparison, savings, full schedule

Tech Details

• Material Design 3
• Android 7.0 (API 24) and above
• Built with Jetpack Compose
• Free with ads — works offline, no account