Trim GIF Online — Free Loop Finder
A free browser-based GIF trimmer with frame-level precision and automatic perfect loop detection. Select frames with visual thumbnails, trim losslessly, reverse or bounce, adjust speed — all processing happens locally via WebAssembly. No upload, no watermark, no registration.
Cut, reverse, and find perfect loops in animated GIFs
Drop GIF file here
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Features
Frequently Asked Questions
How does the loop detection work?
The tool extracts frames and compares each candidate end frame with the first frame pixel by pixel. Frames with high visual similarity (90%+) are highlighted as perfect loop points on the timeline.
Is the trimming lossless?
Yes, by default. The tool uses gifsicle which modifies the GIF container to remove frames without re-encoding the remaining ones. You can optionally enable lossy compression for smaller file sizes.
What does Bounce mode do?
Bounce (ping-pong) mode plays the GIF forward then backward, creating a smooth back-and-forth animation. This is great for creating seamless loops from non-looping animations.
Can I trim GIFs on my phone?
Yes, the tool works on any device with a modern browser. All processing happens locally — no app installation required.
Are my files uploaded to a server?
No. All processing happens in your browser using WebAssembly. Your GIF files never leave your device. The only exception is the optional server fallback for older browsers.
What is the maximum file size?
GIF files up to 100 MB are supported. Since processing happens in your browser, very large files may take longer on devices with limited RAM.
