ToolNest

ToolNest is a lightweight, fully offline Android utility app with 16 practical tools — no accounts, no data collection, no internet required (except currency rates).

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, batch ZIP download
• Passport Photo — create passport-size photo sheets with crop, brightness, border controls

Financial Calculators
• Loan EMI Calculator — real-time EMI, extra payments, savings, amortization schedule, PDF export
• SIP Calculator — investment returns with frequency options and donut-chart summary
• FD Calculator — cumulative & 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 & email — all offline

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

Utilities
• QR Code Generator — create scannable QR codes from text or URLs
• Password Generator — customisable length & character sets
• Color Picker — HSV sliders with hex, RGB, 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 & dynamic colours (Android 12+)
• Android 8.0 (API 26) and above
• Built with Jetpack Compose

Download ToolNest — your all-in-one pocket toolkit.