What does GIF Side by Side do?

It arranges multiple GIFs horizontally into one wide animation, with all sources playing at the same time.

How is this different from GIF Merge?

GIF Merge plays GIFs one after another (sequentially). GIF Side by Side plays them simultaneously, next to each other.

What happens if the GIFs have different lengths?

Shorter GIFs loop to fill the duration of the longest GIF, so all sources keep animating for the full output.

Do the source GIFs need to be the same height?

No. Each GIF is automatically scaled to match a common height while preserving its aspect ratio.

How many GIFs can I combine at once?

Several GIFs at a time — enough for most side-by-side comparisons, while keeping output width and browser memory usage reasonable.

Is my original GIF modified?

No. A new combined GIF is created in your browser. All source files remain unchanged.

Will the output GIF file be large?

It can be, since the canvas width grows with every GIF you add. For social sharing, we recommend combining 2-3 GIFs and keeping source files reasonably small.

Can I remove a GIF after uploading it?

Yes, click the X icon on any thumbnail in the upload list to remove it before combining. You can also add more GIFs afterward as long as you're under the limit.

Why do shorter GIFs repeat while longer ones don't?

All sources are synced to a shared timeline based on the longest GIF. Shorter GIFs loop automatically to keep animating for the full duration, so nothing appears frozen.

Does the order I upload GIFs matter?

Yes, GIFs are arranged left to right in the order you upload them. You can remove and re-add a GIF to change its position before combining.

GIF Side by Side

Combine multiple GIFs into one, playing side by side at the same time.

Upload GIFs to Combine

Drag & drop or click to select multiple GIFs

Arrange two or more GIF files horizontally into a single animation where all sources play simultaneously, side by side. Upload your GIFs, and export the combined result — all processed locally in your browser.

Great for comparing before/after clips, showing multiple reactions at once, or building split-screen animations. Each GIF is scaled to a common height and synced to a shared timeline.

Guide: GIF Side by Side

When to use it

Show before-and-after clips playing at the same time.
Compare two reactions or versions next to each other.
Build a wide banner from several short animations.

Tips

GIFs with the same height line up most cleanly; adjust with GIF Resize first.
Shorter clips loop to match the longest one.
Wide results can be large; keep the number of clips small.

Good to know

To play GIFs one after another instead, use GIF Merge.
To stack them vertically, use GIF Stack.
Reduce the final size with GIF Compress.

How to Combine GIFs Side by Side

1
Upload GIFs
Select 2 or more GIF files. Each will play simultaneously in its own column.
2
Review Order
Files are arranged left to right in the order shown. Remove any unwanted GIFs before combining.
3
Combine
Click 'Combine Side by Side' to sync playback and merge them into one animation in your browser.
4
Download
Download the combined GIF.

GIF Side by Side — FAQ

Last Updated: August 14, 2026