After Effects

mouzeresize: every feature, listed

Updated 2026-10-31 · read from the panel's own code

Turns one finished comp into other aspect ratios, placing each layer by a rule, then updates those sizes and queues them for render. 41 tools, presets, styles, effects and actions in 6 groups. mouzeresize comes with mouzeclick: one plan with everything included, $25 a month.


Sizes 13

  • 9:16Preset

    Picks a Vertical size built from the master's short side, e.g. 1080 x 1920, with the vertical app safe area.

  • 1:1Preset

    Picks a Square size built from the master's short side, with a 5% safe margin.

  • 4:5Preset

    Picks a Portrait size built from the master's short side, with a 5% safe margin.

  • 4:3Preset

    Picks a Classic 4:3 size built from the master's short side, with a 5% safe margin.

  • 16:9Preset

    Picks a Wide 16:9 size built from the master's short side, with a 5% safe margin.

  • 21:9Preset

    Picks a Cinema 21:9 size built from the master's short side, with a 5% safe margin.

  • + CustomTool

    Adds any typed width x height, 16 to 30000 pixels, as a size to make.

  • Remove custom size (×)Action

    Removes a custom size from the list and its safe area setting.

  • NonePreset

    Sets no safe-area margins for the selected size.

  • Margin 5%Preset

    Sets a 5% margin on every side as the selected size's safe area.

  • Title safe 10%Preset

    Sets a 10% margin on every side as the selected size's safe area.

  • Vertical app UI (rough)Preset

    Sets rough margins for app buttons and captions: top 10%, right 12%, bottom 22%, left 5%.

  • Custom marginsTool

    Sets top, right, bottom and left safe margins in percent, 0 to 45, for the selected size.

Layers 13

  • PinTool

    Keeps the layer's size and its margin at the chosen edge, corner or centre of the new frame.

  • Scale to fitTool

    Pins the layer, then shrinks it if needed so it stays whole inside the safe area.

  • CoverTool

    Scales the layer to fill the new frame, keeping the chosen grid point in view.

  • StretchTool

    Spans the layer across the new width, height or both, like a bar; the other axis is pinned.

  • KeepTool

    Leaves the layer unchanged: it follows its parent or keeps its pixel place.

  • Resize insideTool

    Resizes a full-frame precomp's own contents too, using its layers' rules; offered only for such precomps.

  • Pin to / Keep in view gridTool

    Chooses one of nine points (top left to bottom right) the layer is pinned to or kept in view.

  • Across / Down / BothTool

    Chooses whether a stretched layer spans the new width, height or both.

  • setAction

    Forgets the rule you set on this layer and goes back to the guessed rule.

  • Guess all againAction

    Forgets every rule you set in the comp and guesses every layer again.

  • Layer nameAction

    Selects that layer in the After Effects timeline.

  • Keep my changesAction

    In a size comp, protects a layer so Update sizes leaves it, or lets it follow the master again.

  • Open the masterAction

    Opens the master comp of the current size in the viewer.

Preview 1

  • Size to previewTool

    Chooses which picked or made size is drawn beside the master, with each layer's box by rule.

Options 7

  • Short sidePreset

    Scales elements by the ratio of short sides, keeping pixel sizes when short sides match.

  • Fit whole framePreset

    Shrinks everything so the whole old frame would fit inside the new one.

  • Same pixelsPreset

    Never scales elements; they keep their pixel size in every new size.

  • Resize full-frame precomps tooTool

    Gives full-frame precomps their own resized copy per size; off, they are covered like a background.

  • Pinned layers stay inside the safe areaTool

    Moves pinned layers in, without shrinking, so they stay inside the safe area.

  • Add a safe-area guide layerTool

    Adds a locked guide shape layer showing the safe area and tinted margins to each size; it never renders.

  • Comp namesTemplate

    Names each new comp from {comp}, {ratio}, {w}, {h} and {size}, default "{comp} {ratio}".

Sizes made 5

  • File namesTemplate

    Names each render file from {comp}, {master}, {ratio}, {w}, {h} and {date}.

  • FolderTool

    Sets the output folder for renders, made if missing; empty uses After Effects' own.

  • Render settingsTool

    Applies a named render settings template to each queued size; empty uses the default.

  • Output moduleTool

    Applies a named output module template to each queued size; empty uses the default.

  • Add to Render QueueAction

    Adds one Render Queue item per made size, skipping sizes already waiting in the queue.

Make and update 2

  • Make sizesAction

    Duplicates the master into a new comp per picked size, placing every layer and its keyframes by its rule.

  • Update sizesAction

    Refreshes made sizes from the changed master, replacing linked layers while keeping layers you changed or added.

More in mouzeresize

Six size presets; safe-area list has five choices. Resize inside appears only for full-frame precomps with nested precomps on. In a size comp the Sizes card is replaced by Open the master, the layer table shows Keep my changes, and Update becomes Update this size. Each step is one undo group.

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