An animated GIF is an old picture format pressed into service as video: 256 colours a frame, no sound and no real compression between frames, so a few seconds can run to tens of megabytes. Instagram, TikTok, X, WhatsApp statuses and most video editors want a video instead, and the same animation as an MP4 is usually a fraction of the size and smoother to play.
This page reads the GIF with the site's own decoder, draws every frame the way a browser plays it (frames that only change part of the picture, see-through pixels, frames that put the previous picture back), and hands each one to your browser's video encoder, usually on the graphics chip. It is free to use, with no account and no upload limit, and it runs entirely in your browser: nothing is uploaded, and while the page stays open, a feature you have already used keeps working offline.
- Will the MP4 loop like the GIF?
- A video file has no loop setting of its own: whether it repeats is up to the player. Instagram, TikTok, X and WhatsApp loop short videos by themselves, and most video players have a loop button. To build the repeats into the file, for a player that does not loop, choose 2 to 10 plays and the animation is repeated in the video that many times.
- Does the video keep the GIF's speed?
- Yes: each frame lasts exactly as long as the GIF says, so an animation with a long pause on its last frame keeps the pause. Frames marked 0 or 1 hundredth of a second are shown for a tenth of a second, as Chrome, Firefox and Safari show them, so the video runs at the speed you are used to seeing.
- Why is the MP4 so much smaller than the GIF?
- A GIF stores every frame as a separate picture; a video stores how each frame differs from the last. The MP4 is made at high quality for its size, usually a fraction of the GIF's file size. The colours can look a little smoother than the GIF's 256-colour banding, never worse.
- What happens to transparent parts?
- MP4 and WebM videos made here have no transparency, so see-through parts are filled with white or black, whichever you choose. The choice appears only when the GIF has see-through parts.
- How big a GIF can it convert?
- The GIF can be up to 300 MB and 20,000 frames, with a picture of up to 16.7 million pixels. Videos are made at up to 4K (3840 × 2160); a larger GIF is reduced to fit. With repeats, a video can be up to 30 minutes or 60,000 frames. Width and height are rounded to even numbers, which H.264 needs.
- Which browsers can make the MP4?
- Chrome, Edge and Safari make MP4 on every system, and Firefox can on most Windows and Mac computers. If your browser cannot encode H.264 the page says so; choose WebM there, which Chrome, Edge and Firefox can make. On an iPhone or Android phone, open this page in Safari or Chrome, tap the box and pick the GIF from Photos or Files; the MP4 is saved to Files or Downloads and can then be shared to Instagram or TikTok.
- Is my GIF uploaded?
- No. The GIF is read and the video made in this browser tab on your device; nothing is sent to this site or anywhere else.