Free Comic Panel Layout Grid Generator

The overlay measures the gutter as a percentage of the page's short side and applies the same value in both directions, which matters more than it sounds. If horizontal and vertical gutters differ, the panels stop reading as a family — a wide gap one way and a narrow one the other looks like a mistake even on a perfectly regular grid.

The page margin works the same way, and it exists for a physical reason. A printed page is trimmed after binding, and the trim has a tolerance, so a panel running to the paper's edge risks losing a strip of itself.

The safe area drawn here sits at half the page margin, which puts it outside the panel area rather than inside it. That is the trim allowance made visible: panels inside the margin, and the margin itself inside the safe rectangle.

The exception is a deliberate bleed, where art is drawn past the trim line precisely so that no white edge can appear. That is a different intention and the grid does not stop you — but it is worth being clear which one you are doing, because a panel that bleeds by accident is a panel that gets clipped.

The nine-panel grid — three columns by three rows — is the most argued-about layout in comics and it keeps returning for a structural reason. Nine panels is enough to hold a scene, the three-by-three arrangement gives a page a strong regular rhythm, and the divisions permit halves, thirds and full-width rows without anything landing off-grid.

Manga developed differently, with far more irregular panel shapes, diagonal gutters and panels that overlap or break their borders. The right-to-left reading order changes the geometry of the page as well, and a grid designed for left-to-right reading will number panels the wrong way for it.

That is a real limitation of this overlay and worth stating: the numbering runs left to right, top to bottom. For manga-order work the panel positions are still correct; the numbers are not, and they can be turned off.

The counting matters for a practical reason that has nothing to do with layout. A script refers to panels by number, a letterer places balloons by number, an editor gives notes by number, and on a twenty-page issue with several people involved, agreeing which panel is panel four is the difference between a smooth job and a confusing one.

The regular grid's other function is as a planning device. Thumbnailing a page on a regular grid first, then merging cells for the panels that need more room, produces a layout where the irregularities are decisions. Thumbnailing freehand produces one where they are whatever fitted.

That distinction shows up in the finished page as a specific quality: pages composed by merging a grid feel deliberate even when they are wildly irregular, and pages composed by feel often feel crowded in the middle and empty at the bottom.

Reading flow is the constraint everything else serves. Western comics read left to right and top to bottom, and the layout must not create ambiguity about which panel comes next. The classic failure is a page where two panels of different heights sit side by side and the reader cannot tell whether to go across or down.

A regular underlying grid prevents that almost automatically, because rows are unambiguous. The moment you merge cells vertically you have created the possibility of the failure, and that is the moment to check the flow explicitly rather than assume it.

Panel count per page is a pacing decision more than a layout one. More panels means more moments and a slower read; fewer means bigger images and faster movement. A six-panel page and a three-panel page covering the same story beats feel entirely different.

The extremes are worth naming. A single panel filling the page is a splash, used for arrival, revelation or scale. A double-page spread is the same device at twice the size, and it has a constraint the grid cannot show: the gutter of the binding runs down its middle, so nothing important can sit there.

For film and animation the same sequence problem belongs to the storyboard template generator, and the page's own type sits on the baseline grid generator. For webcomics the physical constraints mostly disappear — no trim, no binding, often no fixed page height — and the grid becomes purely compositional. The vertical-scroll format in particular has developed its own conventions where the gutter's length, rather than its width, controls pacing.

The overlay's maximum of six by eight is well beyond anything a page should carry. It is there so that the working settings sit comfortably inside the range rather than at the end of a slider, which is a small usability point that matters when you are adjusting rather than choosing.

The grid draws over your own thumbnail rather than exporting a fixed template because checking is the more valuable use. A blank panel template is a printable and printables are plentiful; the same grid over your rough tells you whether your panels are aligned or merely close.

The export sizes itself from the paper format and the DPI you choose rather than from your screen, so a page printed at your actual board size has accurate panel positions. SVG keeps every panel editable as a template layer.

Everything runs in your browser. Images you load are never uploaded, because there is no server for them to reach. The drawing, the transform and the export all happen on your own machine.