Free Printable
Precision Grids
& Calculators
KraftLines provides industrial-grade mathematical utilities for architects, designers, and engineers. Generate perfect vector grid PDFs (Graph, Isometric, Hexagon) and precise scale conversions instantly.
Mathematically Perfect
Vector paths plotted on precise pixel intervals meaning infinite scaling without any blurry lines.
Strictly Client-Side
Your measurements and configurations never hit our servers. It's safe, private, and lightning fast.
Export to Code
Generate grids natively and export them directly to SVG Code snippet payloads for your web apps.
The Digital Toolkit
Explore our suite of architectural, design, and developer utilities designed to supercharge your precision planning workflow.
Grid Generator
Generate complex graph, isometric, dotted, or hex grids in perfect vector PDF formats.
Image Processor
Batch convert HEIC, JPG, and PNG files with local quality control and zero latency.
Excel to PDF
Transform spreadsheets into secure, vector-sharp PDF tables without data uploads.
Privacy Redactor
Permanently burn black shapes into PDF layers to obscure sensitive information.
Color Palette
Extract harmonic palettes from images and export instant Tailwind CSS configs.
Industrial Suite
NOMINAL lumber lookups, GSM to Basis conversions, and 3D print volume logic.