How to Reverse a GIF

Reversing a GIF creates a boomerang-like effect. Upload any GIF and GifMash plays it backwards instantly.

Step-by-step guide

1
Upload your GIF
Go to gifmash.com/reverse-gif and upload the GIF you want to reverse.
2
Click Reverse GIF
Hit the Reverse GIF button. The tool uses gifsicle's --reverse flag to flip the frame order of every frame.
3
Download the reversed GIF
Download the result. The file size stays roughly the same — only the frame order changes.

Reverse GIF

Free one-click GIF reversal — runs in your browser.

Reversing works best on GIFs that tell a story (pour, toss, fall) — the result looks intentional.
Combine with GIF Speed to create a slow-motion reverse effect.
File size is unchanged — reversing only reorders frames, it doesn't re-encode them.

Does reversing a GIF change its file size?

No — reversing only reorders the frame sequence. The data is identical, just in a different order.

Can I reverse only part of a GIF?

Use GifMash's Trim tool first to isolate the section, then reverse the trimmed GIF.