Motion keyframes
Pin caption positions at specific frames. The caption smoothly animates between keyframes.
AI object tracking
Click "Follow an Object" and tap the target. Captions automatically follow it across all frames using SAM2.
Remove or swap the background
Describe or tap what to keep, and AI cuts it out of every frame. Leave it transparent, or put a color, image or GIF behind it.
Zoom up to 8×
Zoom in for pixel-precise caption placement. Two-finger pinch or scroll wheel to zoom; drag to pan.
Crop output
Drag on the preview to define a crop region, or enter exact pixel coordinates.
GIF compression
Reduce output file size with configurable compression quality and optional lossy color reduction.
Box captions
Add solid caption bars above or below the GIF with custom font, size, color, and alignment.
How to Add Animated Captions to a GIF
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1
Upload your GIF or video
Click upload or drag a GIF, MP4, WebM, MOV, or AVI file. Videos are converted to GIF automatically.
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2
Add a caption and position it
Click + Add to create a caption, type your text, and drag it to the starting position.
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3
Add motion keyframes or use AI tracking
Seek to different frames and click + Keyframe here to pin the caption at that position. Or click Follow an Object, choose whether the caption keeps its spot beside your subject or sits on top of it, and tap the subject.
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4
Set timing, crop, compress, and export
Use the timeline to set caption start/end frames. Optionally crop or compress the output. Hit Download.
Frequently Asked Questions
- What can this GIF editor do?
- It includes motion keyframes, AI object tracking, zoom up to 8×, crop, GIF compression, and all the standard caption features for fast text overlays.
- How does AI object tracking work?
- Click "Follow an Object", choose whether the caption keeps its place beside the target or sits on top of it, then click on the target in the preview. The SAM2 model creates motion keyframes that follow it across every frame.
- Can I animate text captions?
- Yes. Use "Keyframe here" at different frames with different positions. The caption will smoothly interpolate between them.
- Is this free?
- Yes — completely free. No account, no watermark.
- Does it work on mobile?
- Yes. The GIF editor works in modern mobile browsers, including Safari and Chrome on iPhone and Android.