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A Boomerang video takes a standard animation sequence, plays it forward to the end, and then reverses the sequence back to the start. Our tool automatically decompresses the animation frames, trims to your desired duration, duplicates/skips boundary frames to prevent awkward pauses, and generates a seamless ping-pong loop before compiling.
GIF files contain uncompressed pixel palettes per frame, making multi-frame ping-pong animations very large (often 10MB+). MP4 videos use modern H.264/AAC compression, making them up to 90% smaller, loading instantly on Instagram, TikTok, and web platforms.
AI Motion Smoothing (client-side frame interpolation) analyzes consecutive frames and generates intermediate blended canvases. This doubles the frame rate (e.g. from 15 FPS to 30 FPS or 60 FPS) and fills in the gaps, making fast-moving animations appear incredibly smooth in reverse.
Absolutely. All decoding, encoding, frame reversing, and audio blending run 100% locally in your web browser. None of your image files are uploaded to our servers, protecting your privacy and letting you process files offline.