What video formats can I convert to GIF?

MP4, WebM, MOV, and any other format your browser supports natively. MP4 (H.264) works in all modern browsers.

Why is my converted GIF so large?

GIF format uses lossless LZW compression but only supports 256 colors per frame, which often results in large files. Try reducing the duration, frame rate (FPS), or output dimensions.

How do I set the start and end time for the GIF?

Use the Start Time and End Time sliders to trim the video before converting. Only the selected segment will be included in the output GIF.

What FPS should I use for a smooth GIF?

10–15 FPS is ideal for most GIFs. Higher FPS produces smoother animation but significantly increases file size. Use 24 FPS only for very short clips.

Can I convert a YouTube video to GIF?

GifStream only processes local files — download the video to your device first, then upload it to the tool. We do not fetch or stream remote URLs.

My video won't load. What should I do?

Try converting the video to MP4 (H.264) using a tool like HandBrake or FFmpeg first. Some older codecs (e.g., AVI, MKV) may not be supported by your browser.

Can I adjust the output GIF size in pixels?

Yes. Set a custom width in the tool — height is scaled automatically to maintain the original aspect ratio.

Is the conversion lossless?

GIF supports only 256 colors per frame, so some color fidelity is lost during conversion from video. This is a limitation of the GIF format, not the tool.

Why does the GIF look choppy even at high FPS?

GIF players in some browsers cap playback at 10 FPS for small delay values (< 0.02s). Try setting FPS to 12–15 for reliable cross-browser playback.

How long can the video clip be for GIF conversion?

There is no strict limit, but clips longer than 10 seconds tend to produce very large GIF files. For best results, keep the clip under 6 seconds.

動画からGIF

MP4やWebM動画をGIFに変換。すべてローカル処理で安全。