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As a composition grows more complex, tracking down a specific keyframe buried inside a collapsed property twirl-down becomes genuinely tedious fast. After Effects solves this with one of its most useful, if underused, keyboard shortcuts, the U key. This guide covers exactly how it works, the difference between pressing it once versus twice, how to select and navigate keyframes once they're visible, and the broader keyframe shortcuts worth learning alongside it.
Showing all keyframes in After Effects comes down to selecting a layer and pressing the U key, instantly revealing every animated property without manually expanding each one. This guide covers that core shortcut, the difference between single and double U presses, how to select and jump between revealed keyframes, and additional shortcuts that speed up keyframe heavy work considerably.
This is genuinely the single most useful workflow shortcut in After Effects for anyone working with keyframes regularly. Click into your Timeline panel to make it active, select the specific layer whose keyframes you want to see, and press U. Instantly, every property on that layer containing at least one keyframe expands and becomes visible, Position, Scale, Rotation, Opacity, or any effect parameter you've animated, all appearing together without needing to manually twirl down each individual property one at a time searching for where your actual animation lives.
Pressing U again on the same selected layer collapses everything back down, toggling the view rather than requiring a separate command to reverse it. This works across multiple selected layers simultaneously too, select several layers at once, press U, and you'll see the animated properties for your entire selection revealed together, genuinely useful when reviewing how multiple elements move together across a composition.
This is a genuinely important distinction many editors miss entirely. Pressing U a single time shows only properties that actually contain keyframes, animation that's genuinely happening over time. Pressing U twice in quick succession instead reveals every property that's been modified from its default value at all, whether or not it's actually keyframed. This includes static changes, a Source Text edit on a text layer, a color adjustment on a shape, that were manually set once rather than animated, giving you a genuinely more complete picture of every single change made to a layer, not just its animated properties specifically.
Understanding when to use which version matters practically, use single U when you're specifically troubleshooting or refining an existing animation, and double U when you're trying to understand everything that's been changed on a layer overall, particularly useful when inheriting a project file from a colleague or returning to your own work after enough time has passed that you've genuinely forgotten what you modified.
Once your keyframes are visible through the U shortcut, selecting all of them together, rather than clicking each one individually, speeds up bulk adjustments considerably. After revealing keyframes with U, pressing Ctrl Alt A on Windows or Command Option A on Mac selects every visible keyframe simultaneously, letting you apply a change, easing, timing offset, deletion, across your entire selection in one action rather than repeating it individually for each keyframe.
For selecting keyframes belonging to just one specific property rather than every revealed property at once, clicking directly on that property's name in the Timeline panel, Scale, for instance, selects only that property's keyframes specifically, genuinely useful when you want to adjust timing or easing for one particular animated property without affecting others on the same layer.
For a genuinely direct, visual demonstration of this exact shortcut in action, watch How To Show And Select All Keyframes In After Effects With Shortcuts. Seeing the U key toggle keyframe visibility live, alongside the selection shortcut, clarifies the workflow considerably faster than reading steps alone, particularly for anyone still building keyboard shortcut muscle memory.
Beyond simply seeing your keyframes, moving your playhead directly between them efficiently matters just as much for genuinely fast keyframe work. With a property selected, pressing J moves your playhead backward to the previous keyframe, while K moves forward to the next one, letting you jump precisely between keyframe positions without manually scrubbing your timeline searching for the exact frame. This pairs naturally with the U shortcut, reveal your keyframes first, then use J and K to navigate directly between them once you can actually see where they all sit.
The U shortcut pairs naturally with After Effects' individual property shortcuts, genuinely worth learning together rather than in isolation. Pressing P reveals Position, S reveals Scale, R reveals Rotation, and T reveals Opacity directly, without needing to twirl down the full Transform category first. Holding Shift while pressing an additional property shortcut adds that property to your current view rather than replacing it, letting you build a custom combination of visible properties, Position and Opacity together, for instance, tailored to exactly what you're currently working on.
Using these specific property shortcuts when you know exactly which property you need, and reserving the broader U shortcut for situations where you genuinely want to see everything animated on a layer at once, gives you the most efficient combination of precision and overview depending on your specific task in the moment.
The genuine value of the U shortcut scales directly with project complexity. On a simple composition with a handful of layers and basic animation, manually twirling down properties to find keyframes is a minor, tolerable inconvenience. On a complex project with dozens of layers, nested compositions, and many animated properties per layer, that same manual search becomes a genuinely significant time cost repeated constantly throughout your working session. Building the habit of reaching for U by default, rather than manually expanding properties out of habit, pays off increasingly the more complex your actual projects become over time.
Beyond simply organizing your view, the U shortcut is genuinely one of the fastest diagnostic tools available when an animation isn't behaving as expected. Revealing all keyframes on a problematic layer immediately shows you exactly which properties actually have animation applied, catching a genuinely common mistake where an editor assumes a property is animated when it was actually only adjusted once at a single point in time rather than genuinely keyframed across the timeline. A property showing no keyframes despite an editor's expectation that it should be animating is often the actual root cause of an animation appearing static when it shouldn't be.
Similarly, revealing keyframes across several layers at once genuinely helps diagnose timing and sync issues between elements meant to move together, letting you visually compare keyframe positions across layers directly on the same timeline view rather than checking each layer's animation in isolation and trying to mentally reconstruct how they should align.
Once you've revealed your keyframes using U, switching to the Graph Editor specifically, accessible through the dedicated button in the Timeline panel's toolbar, lets you refine the actual motion curve between those revealed keyframes with considerably more precision than the standard Timeline view alone provides. The Graph Editor displays your keyframes as points on an actual velocity or value curve, letting you drag directly to adjust easing, timing, and the specific rate of change between keyframes visually rather than relying purely on preset easing options like Easy Ease.
This combination, revealing keyframes with U first to understand what's animated, then refining specific problem areas within the Graph Editor, genuinely represents a considerably more efficient workflow than attempting to work directly in the Graph Editor without first understanding the full scope of what's animated on a given layer.
It's worth understanding that the U shortcut only reveals keyframes for layers within your currently active composition specifically, it doesn't automatically reach into nested precompositions and reveal their internal keyframes simultaneously. For animation living inside a precomposed layer, you'll need to open that specific nested composition directly and use the U shortcut again within it specifically, rather than expecting your main composition's U press to somehow reveal everything happening at every nested level simultaneously.
This is genuinely worth keeping in mind specifically on projects with several layers of nested precompositions, since animation problems can sometimes live inside a nested comp that isn't immediately visible from your main timeline's revealed keyframes alone, requiring you to specifically dig into that nested level to actually diagnose what's happening there.
For editors working on longer, more involved projects specifically, building a habit of periodically reviewing all keyframes across key layers, rather than only checking when something specifically looks wrong, catches genuine issues earlier before they compound into larger problems later in the project. Setting aside a few minutes specifically for this kind of keyframe review pass, particularly before a major milestone or client review, using U liberally across your primary animated layers, is a genuinely worthwhile habit that catches small inconsistencies while they're still easy and fast to fix.
This is particularly valuable specifically on collaborative projects, reviewing a colleague's animated layers using U before building your own work on top of theirs ensures you genuinely understand what's already been animated rather than potentially duplicating or conflicting with existing keyframed properties you weren't fully aware of.
The U shortcut is genuinely just one piece of a considerably broader set of keyboard efficient habits worth building as an After Effects editor. For editors wanting to speed up other parts of their workflow beyond just keyframe management specifically, pairing efficient keyboard habits with pre-built templates genuinely compounds your overall production speed. Our own free After Effects templates already come with clean, well organized keyframe structures built in, worth studying using the U shortcut specifically to see exactly how a professionally built animation is actually structured, a genuinely useful way to learn from existing, well constructed work rather than only building your own animations from scratch.
For editors reviewing revealed keyframes specifically as part of a broader quality check before final delivery, checking that animated properties align visually with your project's intended color and motion consistency matters alongside pure timing accuracy. If your project relies on a consistent color grade applied across multiple layers, reviewing whether any color related keyframes revealed through U genuinely match your intended look, rather than an inconsistent adjustment made at some earlier point in the project, catches a genuinely easy to miss inconsistency before it reaches a final client review. Our own free LUTs library can help establish that consistent baseline look across your footage, giving you a clearer, more reliable reference point when reviewing whether any keyframed color adjustments genuinely still align with your project's intended final aesthetic.
A frequent mistake involves forgetting that U requires the Timeline panel specifically to be active, pressing it while focused on a different panel, the Project panel or Composition viewer, simply does nothing, leading to genuine confusion about why the shortcut "isn't working" when it's actually a focus issue rather than a genuine problem with the shortcut itself. Clicking directly into the Timeline panel before pressing U resolves this immediately. Another common issue involves confusing single and double U presses, expecting to see only animated properties but instead seeing every modified property including non-keyframed ones, understanding the distinction covered earlier in this guide avoids this genuine confusion.
Forgetting that U toggles rather than only expanding is a final, minor but genuinely common point of confusion, pressing U on an already expanded layer collapses it back down rather than doing nothing, worth knowing so an unexpected collapse doesn't read as a bug when it's actually the shortcut working exactly as designed.
Select your layer and press U, this reveals every property containing at least one keyframe.
Single U shows only keyframed properties, double U shows every property that's been modified at all, including non-keyframed manual changes.
Press Ctrl Alt A on Windows or Command Option A on Mac after revealing keyframes with U.
Confirm your Timeline panel is actually active by clicking into it first, U only works when the Timeline panel specifically has focus.
Yes, selecting several layers before pressing U reveals the animated properties for your entire selection together.
The U shortcut genuinely earns its reputation as one of the most valuable keyboard shortcuts in After Effects, instantly revealing exactly where your animation lives without manually hunting through collapsed property menus. Understanding the distinction between single and double presses, pairing it with J and K for keyframe navigation, and combining it with property specific shortcuts like P, S, R, and T, builds a genuinely efficient keyframe workflow that pays off increasingly as your projects grow in complexity.
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