GridMask

GridMask — Pixel Mask Pattern Creator

GridMask is a retro pixel design studio for creating small, reusable mask patterns. Tap cells on a grid, apply symmetry, pick colors, and preview your designs as avatars, stamps, or badges. Everything stays on your device — no account, no cloud, no distractions.

DESIGN PIXEL MASKS: Build decorative icons, avatars, stamps, and pattern masks on an interactive pixel grid. Tap cells to turn pixels on or off, choose your active color, and watch your pattern come to life in a clean arcade-style editor.

GRID SIZES: Start with the canvas that fits your idea: • 8×8 — quick icons and tiny stamps • 12×12 — balanced detail for badges and avatars • 16×16 — richer patterns with more room to work

SYMMETRY MODES: Speed up your workflow with built-in mirroring: • None — freehand pixel placement • Horizontal mirror — reflect across the vertical axis • Vertical mirror — reflect across the horizontal axis • Quad mirror — four-way symmetry for balanced designs

POWERFUL EDITOR TOOLS: • Fill row and fill column for fast block placement • Clear grid to start fresh • Invert mask to flip your entire pattern • Row and column steppers for precise targeting • Color picker and quick swatches for your palette

EXPORT STYLES: Preview every mask in three export looks: • Circle Avatar — profile-style circular icon • Square Stamp — sharp pixel stamp tile • Rounded Badge — soft-corner badge format

GALLERY: Save your masks to a local gallery with mini pixel previews. Rename, duplicate, delete, and share a text summary of any design. Open any saved mask back in the editor to keep refining.

SETTINGS: Set your defaults for grid size, color, and symmetry mode. Reset all data anytime if you want a clean slate.

BUILT FOR CREATORS: GridMask is focused on one job: making small pixel-style masks you can reuse as decorative icons and patterns. It is not a drawing clone, photo editor, notes app, or planner — it is a dedicated pixel mask studio with a retro grid aesthetic.