Keyframe Animation With Bezier Curves
Animate position, scale, rotation, opacity, audio levels, and effect parameters over time. Bezier curves, a graph editor, and frame-accurate timing built in.
What it is and why it matters
Keyframes are the lingua franca of motion. Set a value at one point in time, set a different value at another point, and the editor interpolates the change between them — that's how every animated property in any pro tool works. Skrrol AI exposes keyframes on every animatable parameter: clip position and scale, rotation, opacity, audio levels, color grades, blur strength, and effect-specific parameters like keyer tolerance or transition softness. Each keyframe lives on the timeline at a specific frame and you can move, copy, paste, and delete them just like any timeline element.
The difference between adequate keyframe animation and pro keyframe animation is the curve editor. Linear interpolation between keyframes feels mechanical — real motion accelerates, holds, and decelerates. Skrrol's graph editor lets you drag bezier handles to sculpt the animation curve into ease-in, ease-out, hold-and-release, or fully custom shapes. Each property gets its own curve, so you can have position ease in slowly while opacity snaps quickly. Multiple parameters can share a curve when synced motion is what you want. The keyframe layer is what unlocks logo animations, layered montage builds, drone-style fly-throughs of still images, and per-effect parameter automation that would be tedious to do any other way.
How it works
- 1
Select the layer to animate
Click any clip, text, image, or audio track. The inspector shows every animatable property with a small keyframe diamond next to it.
- 2
Set the first keyframe
Park the playhead at the start time, set the property value, and click the keyframe diamond. A keyframe drops on the timeline.
- 3
Move the playhead and change the value
Move forward in time, change the property value (drag to a new position, change opacity, etc.), and a second keyframe is created automatically.
- 4
Open the graph editor
Click the curve icon next to the property to open the graph editor. The animation curve appears with bezier handles you can drag.
- 5
Sculpt easing
Drag bezier handles to ease in, ease out, or build custom curves. Right-click a keyframe to switch interpolation modes (linear, bezier, hold, smooth).
- 6
Copy and paste keyframes
Select a keyframe, copy it, paste it on another layer or another property — animation builds compose from reusable motion fragments.
Benefits
Animate every property
Position, scale, rotation, opacity, audio level, color, blur, and any effect parameter — every animatable value gets keyframes.
Bezier curve editor
Drag handles on a real graph editor to sculpt easing curves — no more linear-only animation.
Frame-accurate timing
Keyframes snap to frames, so motion lines up with cuts, beats, and on-screen action precisely.
Copy paste and reuse
Move keyframes between layers and properties. Build animation libraries from fragments you've already tuned.
Who uses it
Motion graphics editors
Build logo animations, lower thirds, and on-screen UI elements without leaving the editor for a separate motion tool.
YouTube essay creators
Animate B-roll position and scale for 'fly-through' shots over still images, give every cut subtle motion.
Ad creative producers
Punch a CTA from off-screen with a tuned ease-out, hold for a beat, fly out — all on a single keyframe stack.
Picture-in-picture stylists
Animate the position and scale of PIP overlays so they enter, hold, and exit with personality instead of just popping in.
Audio engineers
Automate fader levels and effect parameters with keyframes to handle dynamic mix changes during a scene.
Frequently asked questions
How many keyframes can I add per property?
There is no fixed cap. Add as many as the animation calls for; performance is governed by your device.
Can I animate audio with keyframes?
Yes. Volume, pan, and any audio effect parameter can be keyframed for automation.
What interpolation modes are available?
Linear, bezier (default), hold (no interpolation between keyframes — value jumps at each keyframe), and smooth (auto-eased).
Can I animate effect parameters like blur?
Yes. Any effect parameter exposes a keyframe diamond. Animate keyer tolerance, blur strength, transition softness — anything.
Will keyframes export correctly?
Yes. Animations bake into the rendered video at full frame rate during export.
Related editor features
Multi-Track Timeline — The Way Pro Editors Cut
Unlimited layered video and audio tracks, ripple and roll edits, three-point editing, J/L cuts, and nested sequences. The pro NLE timeline, in your browser.
Speed Ramping — Slow-Mo, Fast-Forward, Freeze Frames
Curve speed across a clip with frame-accurate keyframes. Smooth slow-motion with optical flow interpolation, ramped fast-forward, and clean freeze frames.
Video Transitions — From Crossfade To Whip Pan
Drag-and-drop crossfade, dip-to-black, slide, zoom, whip pan, and dissolve transitions. Frame-accurate timing, beat-syncable, and library presets that match real edits.
Ken Burns Effect — Pan & Zoom Stills Into Cinema
Turn flat photos into moving stories. Set a start frame, an end frame, an easing curve — and watch your stills drift, zoom, and breathe like documentary footage.
Try it in the Skrrol AI editor
Skrrol is a browser-native video studio. Open the editor in your browser, drop in your media, and use this feature alongside the rest of the timeline. Free, no install, your files stay on your device.