NN555Lock

GridLock is a practical tool designed for front-end developers, UI/UX designers, and layout enthusiasts to quickly generate and reference grid systems.

Core Features:
- Interactive Grid Generation: Define custom grid systems by adjusting the number of columns, column spacing (gutter), and page margins. The canvas updates in real-time as you tweak parameters.
- Element Simulation: Add interactive placeholder blocks to the grid. Drag, position, and resize these elements to visualize how content will align within your chosen grid structure. Elements automatically snap to the nearest grid lines.
- Built-in Presets: Quickly apply mainstream design system grids, including Bootstrap 12-column, Material Design, and Apple HIG layouts.
- Layout Comparison: View two different grid layouts side-by-side to evaluate and compare structural choices.
- Save & Manage: Store your grid layouts and their corresponding element placeholders locally for future reference and design reviews.

With a distraction-free interface and precise controls, GridLock helps you plan structural layouts efficiently before writing a single line of code or opening heavy design software.