ByteScope

GIF → MP4 Converter

Convert animated GIFs to MP4 — usually 5–10× smaller.

Your files never leave your browser — all processing is local.

Your video never leaves your computer.

Our servers can't see your files — there is no upload path. no upload · no watermark · no size limit · no queue

Drop an animated GIF here

or click to browse / paste

About this tool

GIF is a 1989 format doing a job video codecs do far better: the same animation as MP4 is typically 5–10× smaller, plays smoother and supports more than 256 colors. Converting GIFs to MP4 is the single biggest size win available for animated content on the web.

Everything — demuxing, decoding, scaling, encoding — runs inside your browser using the hardware-accelerated WebCodecs API. Nothing is installed and nothing is uploaded.

Frequently asked questions

The GIF's timing looks slightly different in the MP4 — why?
GIFs can have a different delay on every frame, while the MP4 is encoded at a constant frame rate. The tool infers a matching fps from the GIF and resamples; you can adjust the fps before converting if the motion looks off.
Is my video uploaded to a server?
No — and you can verify it. Open your browser's DevTools Network tab while converting: there is no upload request, because the pipeline (decode, resize, encode) runs entirely on your machine via the WebCodecs API. Our servers cannot see your files; there is no upload path to send them through.
Is there a watermark or a file size limit?
No watermark, ever. There's no hard file size limit either — a single conversion is capped at 60 seconds of video to keep memory in check, and you can trim a long video into ranges.
Why is this faster than online converters for big files?
Upload-based converters spend most of their time transferring your file and waiting in a queue. Here a 100 MB video starts converting immediately, using your browser's hardware-accelerated video codecs.
Which browsers are supported?
Any browser with the WebCodecs API: recent Chrome, Edge, Safari and Firefox. If H.264 encoding isn't available, the tool automatically falls back to the royalty-free VP9 codec in a WebM file and tells you.