GrainLine is a reliable fabric yardage calculator and cut planner designed specifically for sewists, quilters, and crafters. Plan project requirements, calculate yardage accurately at the cutting counter, and track bolt remainders without delays or connectivity issues. Designed for real-world sewing environments, GrainLine operates entirely offline. Whether you are browsing aisles in brick-and-mortar craft shops, attending quilt retreats, or working in your personal studio, all conversion tools and cutting calculations remain fully functional without internet access or mandatory account sign-in. Key Features: • Precise Fabric Calculations: Convert between yards, inches, meters, and centimeters with exact fractional readouts tailored for pattern cutting. • Quilt Block & Strip Estimator: Accurately estimate required yardage for quilt borders, backing, binding, and patchwork blocks to minimize fabric waste. • Bolt Remainder Tracking: Calculate remaining fabric on bolts instantly to know whether enough yardage exists before making a purchase. • Quick Counter Access: Fast input fields allow rapid calculations directly at the cutting table with minimal taps. • Offline Functionality: Complete standalone functionality ensures zero dependence on cellular reception or cloud services. • Privacy-Focused: No mandatory registration, no background tracking, and no external analytics collection. Eliminate guesswork and overbuying. Plan sewing projects with clean measurements, practical cut estimation, and dependable offline calculations.

Data Safety & Offline Privacy Guarantee:
- 100% Offline: This application operates entirely on your device without requiring an active internet connection.
- Zero Data Collection: We do not collect, monitor, track, store, or transmit any personal identifiable information (PII), device identifiers, or usage telemetry.
- No Accounts or Subscriptions: Enjoy complete utility with zero account creation, logins, or hidden recurring fees.
- Local Storage Only: All items, history, and preferences are retained strictly within on-device sandboxed storage.