GIF Speed Changer
Local processingYour files are processed in this browser and are not uploaded.
How it worksChange GIF playback speed and re-encode the animation.
Supported useUp to 30 seconds of video or 300 GIF frames. Large inputs may exceed browser memory. Video outputs are silent and MP4 does not preserve transparency; colors and timing can change during re-encoding.
Change GIF playback speed and re-encode the animation.
or drop files here
Up to 30 still images, 300 GIF frames or a 30-second video clip; 50 MB per file. The local animation engine downloads on first use.
Video, crop & compression settings
How to use this tool
- Choose local files.
- Adjust settings and inspect the preview.
- Generate and download a new file.
Frequently asked questions
What does 2× speed mean?
2× halves the playback duration; 0.5× doubles it. GIF timing uses 10 ms units, and browsers limit very short frame delays.
Are my files uploaded?
No. Decoding and processing happen on your device.
What should I check before using the output?
Up to 30 seconds of video or 300 GIF frames. Large inputs may exceed browser memory. Video outputs are silent and MP4 does not preserve transparency; colors and timing can change during re-encoding.