Gridsmith

Tools

Brush size

Size of each paint stamp for pencil & eraser. All sizes use the same active color.

Active color #ff004d

Grid size

16×16

Long-edge pixel count. Importing an image reshapes the canvas to match its aspect (e.g. portrait → tall grid).

Edit

Fill tolerance 40

How close a color must be to count as the same for Fill (and knock-out). 0 = exact only. Raise for JPEG white / compression noise.

Samples corner colors (usually white on JPG imports) and clears similar edge-connected pixels. Prefer PNG with alpha when you can; this is the JPG rescue.

Palette

retro · 16

Pick one active paint color (transparent is always first). It applies to pencil, fill, and every brush size — it does not recolor pixels already on the canvas.

Custom color

Default is a 16-color PICO-8-style palette (hex list commonly treated as CC-0). Not an official Lexaloffle product.

100%

H hand (drag view) · B pencil · E eraser · G fill · I dropper · Scroll zoom · Space / middle / Alt-drag pan · ↺ reset view · ⌘/Ctrl+Z

Export & import

Import image → analyze palette

Import links the image (centered, aspect preserved). Transparent PNG/WebP backgrounds stay empty on the grid (not filled with a color). Extraction uses the left palette size as a maximum (e.g. retro 16 → up to 16 colors; a 5-color sprite stays 5 exact colors — no filler shades).

Your copyright (optional)

Left blank by default. Fill this in to stamp your name on the SVG you download.

Your name or studio

Year

License

Your site (optional)

Sprite title

No copyright will be written into the SVG until you add a name.

Agent API: POST /api/pixelate · API guide (PDF)