How is this different from GIF Playback Speed Changer?

This tool flattens EVERY frame to the same constant delay derived from your chosen fps, discarding any timing differences between frames. GIF Playback Speed Changer instead scales each frame's EXISTING delay by a multiplier, so frames that were originally faster or slower than each other stay proportionally faster or slower - it changes overall speed while preserving relative timing, this tool erases relative timing entirely.

Why doesn't my target fps come out exactly right?

GIF delays are stored as whole centiseconds (hundredths of a second), so a target like 24fps (100/24 = 4.1666...cs) has to round to 4cs, which actually plays at 25fps, not exactly 24. The tool reports the real applied fps alongside the delay it wrote so you know exactly what you got.

Should I use this or GIF Speed Normalizer to fix jittery timing?

Use GIF Speed Normalizer if you want to remove jitter while keeping the SAME total duration. Use this tool if you specifically want a known, constant frame rate (like 24fps or 30fps) regardless of how that changes the total duration.

Does changing frame rate affect the number of frames?

No, the frame count stays the same; only each frame's delay value changes. Use GIF Length Changer if you want to add or remove frames.

GIF Framerate Changer - Set a Target FPS

Overview

Introduction

Video and animation workflows typically think in frames per second, but GIF's native timing unit is a per-frame delay in hundredths of a second, not an fps value. This tool bridges the two by converting a target fps into the matching constant delay.

It's a bespoke, frame-rate-first way of retiming a GIF, as opposed to tools built around a speed multiplier or an exact total duration.

What Is GIF Framerate Changer?

GIF Framerate Changer takes a target frame rate (in fps) and converts it into a single constant per-frame delay, in centiseconds, which every frame in the GIF is then set to. It's the tool to reach for when you think in terms of "I want this GIF to play at 24fps," the way you would for video.

It's distinct from GIF Playback Speed Changer, which scales each frame's own existing delay by a multiplier rather than replacing all delays with one shared value, so relative timing between frames survives there but not here. It's also distinct from GIF Speed Normalizer, which computes its constant delay automatically from the GIF's own average (preserving total duration) rather than from a target fps you choose (which generally changes total duration).

How GIF Framerate Changer Works

Given a target fps, the tool computes `100 / fps` to get the ideal delay in centiseconds, then rounds to the nearest whole centisecond since that's the smallest unit GIF delays support.

Every frame is re-encoded with that rounded delay. The tool also reports back the real fps that rounded delay produces (`100 / roundedDelayCs`), since for many fps targets the rounding shifts the actual result slightly away from what was requested.

When To Use GIF Framerate Changer

Use it when you need a GIF to play at a specific, known frame rate, e.g. matching a video's frame rate for a side-by-side comparison, or hitting a platform's recommended fps.

Avoid it if you actually want to preserve each frame's original relative timing while just going faster or slower overall - use GIF Playback Speed Changer for that instead.

Often used alongside GIF Playback Speed Changer, GIF Speed Normalizer and GIF Duration Changer.

Features

Advantages

Lets you think and work directly in frames per second, matching how frame rate is usually discussed for video and animation.
Reports the real applied fps, so you always know the exact result rather than assuming the rounded value matches your request.
Runs entirely client-side; uploaded GIFs are never sent to a server.

Limitations

GIF's whole-centisecond delay resolution means most fps targets can't be hit exactly (24fps rounds to an effective 25fps, for example).
Flattening every frame to one constant delay discards any original per-frame timing variation, intentional or not.

Examples

Converting to 24fps

Input

Target: 24 fps

Output

Applied delay: 4cs per frame (real applied fps: 25)

100 / 24 = 4.1666...cs, which rounds to 4cs - the nearest whole centisecond - producing an actual 25fps rather than exactly 24fps.

Best Practices & Notes

Best Practices

Check the reported applied fps after converting, especially for fps targets like 24 that don't divide evenly into 100.
Use GIF Speed Normalizer instead if your only goal is removing timing jitter without changing the total duration.
Pick a target fps within 1-60; extremely high fps targets round to sub-centisecond delays GIF simply can't represent.

Developer Notes

The rounding direction matters here: `Math.round(100 / fps)` is the closest achievable delay, but because GIF delays are integers, there is no fps value that guarantees an exact round trip except ones where 100/fps is already a whole number (e.g. 50fps -> 2cs, 25fps -> 4cs, 20fps -> 5cs, 10fps -> 10cs).

GIF Framerate Changer Use Cases

Matching a GIF's playback rate to an accompanying video's fps for a synced comparison
Standardizing a batch of GIFs from different sources to one consistent frame rate
Hitting a specific fps target required by a platform or embed spec

Common Mistakes

Assuming the requested fps is exactly what gets encoded - always check the reported applied fps.
Using this tool when the goal is actually a speed change relative to the current playback, which GIF Playback Speed Changer handles more directly.

Tips

Frame rates that divide evenly into 100 (50, 25, 20, 10, 5, 4, 2, 1) hit their exact target with zero rounding error.
If you need an exact total duration instead of a specific fps, use GIF Duration Changer instead.

GIF Framerate Changer