GIF Extender
Add extra hang time to an animated GIF — pause longer on the last frame before it loops, or stretch every frame's delay by the same amount.
Input
Animated or static GIF. Pixels are untouched — only frame delay(s) change. This uses one credit per run.
How much extra time to add. With "Last frame only", this is how long the animation pauses on its final frame before looping back to the start.
Uncheck to make the output GIF play once instead of looping.
Output
Result will appear here.
Result will appear here.
Guides
Add extra hang time to an animated GIF — pause longer on the last frame before it loops back to the start, or slow the whole animation down by stretching every frame's delay by the same amount. Your upload shows in its own Uploaded GIF preview as soon as you pick it, right above the Extended GIF result, so you can compare the two once you run the tool.
How it works
Upload a GIF (animated or static), choose what to extend, and set how much extra time to add:
- Last frame only — the default. Adds the extra time to the final frame's delay only, so the animation holds on its last frame for longer before jumping back to frame one. Useful for GIFs that feel like they loop too quickly, or to give a "punchline" frame a beat to land.
- Every frame — adds the same extra time to every frame's delay, slowing the whole animation down uniformly rather than just pausing at the end. For a proportional speed change instead of a fixed addition, use GIF Editor's Speed mode.
- Extra hang time (seconds) — how much time to add, from 0.1 up to 60 seconds.
Loop forever is checked by default, so the output GIF loops indefinitely like most animated GIFs. Uncheck it to make the output play once and stop on its last frame.
Privacy
The GIF is processed on our server, not in your browser — that's what makes multi-frame decoding and re-encoding possible without a heavy in-browser library. It's used only to produce your result and isn't stored afterward. This uses one credit per run, including on the website itself.
Why is this a separate tool from GIF Editor's Speed mode?
Speed rescales every delay by a percentage (200% plays twice as fast), which changes the whole animation's pacing proportionally. This tool adds a fixed number of seconds to one frame or all of them — the right operation when you want a pause at a specific point (the loop point) rather than a uniformly faster or slower playback.
Does this work on animated GIFs?
Yes — that's the whole point. Every frame's original delay is preserved except where "Every frame" intentionally adds to all of them, or "Last frame only" adds to just the final one.
What happens with a single-frame (static) GIF?
"Last frame only" and "Every frame" both extend that one frame's delay by the same amount, since it's both the first and last frame.
Use it from code
From 3 credits per callREST API
curl -X POST https://api.iotools.cloud/v1/tool/gif-extender \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"file": "<file>"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `gif-extender` tool (GIF Extender) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.