Merge GIFs into one

Drop two or more GIFs, put them in the order you want with the arrows in the list, and press Merge GIFs. The frames of the second GIF follow the last frame of the first, and so on, and the new GIF downloads with each frame’s own timing.

The first GIF in the list sets the size of the result, so put the one whose shape you want first. Every other GIF is fitted inside that size without being stretched, and the space left over becomes bars in a colour you choose, white to start with. A smaller GIF is enlarged to fit, which can make it look soft. Choose Fill and crop to cover the frame instead, which trims the edges from the centre. For a size you pick yourself, merge first and then use Resize GIF.

Yes. Every frame keeps its own delay, so each part plays as fast as it did before and the merged GIF lasts as long as the originals added together. Frames with a delay of 10 milliseconds or less are written as 100 milliseconds, which is how browsers already play them. Two frames that look the same side by side may be written as one frame shown for longer, so the frame count can be lower while the length stays the same.

With a bar colour chosen, transparent areas are filled with that colour, so the result is a solid picture and a smaller file. To keep transparency, set the bars to transparent. GIF transparency is on or off, so soft edges can look rough over a coloured page.

It follows the loop setting of the first GIF in the list: if that GIF repeats forever, so does the merged one, and it repeats as a whole, from the first GIF to the last. If the first GIF plays once, the merged GIF plays once.

They can. A GIF holds at most 256 colours per frame, and the frames are written again, so smooth gradients can look a little different. The file is usually about as large as the originals together, and a GIF fitted to a larger size comes out bigger. Compress GIF makes a GIF lighter afterwards.

The limit is your device’s memory, and phones hold less. Every frame of the merged GIF is held in memory while the file is written, so many GIFs, a long result or a large first GIF may need a computer. If the page says it is too large, merge fewer GIFs at a time, or make them smaller first with Resize GIF.

Yes. Your browser reads each GIF, joins the frames and writes the new GIF with code running in this tab. Open the network tab, run it, and your GIFs are not among the requests. After one visit and a short wait the page works offline.

Not on this page, which takes GIFs only. To turn a video clip into a GIF first, use Video to GIF. To make a GIF from still pictures, use the GIF maker, then merge the result here.