Compress GIF with Control over Motion and Color

Choose the actual GIF file and wait for its dimensions and single-cycle duration to be inspected. The animated image preview displays the source using its own loop behavior. Set a retained range, then choose a width ceiling, output frame rate, palette limit, dithering method, and output loop count. The tool decodes the animation, resamples the selected interval, constructs a fresh palette, and writes a new GIF. It does not modify the source file, rename a different image format, or simply remove bytes from the existing compressed stream.

1. 1

   Find the useful action in one source cycle

   Watch the original and use the time fields to retain the complete action. Duration refers to one pass through its frames, even if the source loops forever. The image preview is not a seekable timeline preview of your trim.

2. 2

   Reduce the dimensions before sacrificing motion

   Set a width cap suitable for the destination, then try a lower FPS and palette limit. Width never enlarges the source; height follows its aspect ratio. Use dithering suited to the content rather than selecting the smallest color count immediately.

3. 3

   Compare size, appearance, and looping

   Run the job, inspect the result animation, and review the measured byte change. Download the candidate and test it where it will be posted. Retry with another combination when the result remains too large or loses an important detail.

GIF stores indexed-color frames, timing, transparency, and optional loop information. Width and height determine how many pixels need describing, while frame rate changes how many images are stored per second. A scene with a still background and a small moving pointer can compress differently from a full-frame camera pan. Dither patterns may make gradients look smoother but also introduce changing fine detail that is harder to encode compactly. That is why identical settings can produce very different sizes for two animations of the same length. A simple slider cannot promise a reliable percentage reduction for every source.

An existing GIF may already use carefully cropped frame rectangles, an efficient palette, sparse motion, and economical timing. Rebuilding it can lose some of that efficiency or add frames through resampling. This tool reports the outcome honestly, including an increase. Keep the original and compare candidates instead of overwriting it after the first encode. For animated interface instructions, readable labels and the complete action are more valuable than reaching an arbitrary color count. For photographs, the appropriate compromise may be fewer pixels and moderate dithering. When the destination accepts video, an MP4 can be a better delivery choice than forcing a long or photographic scene into GIF.

Maximum width runs from 2 to 1920 pixels and only scales down. Output frame rate runs from 1 to 30 FPS and creates a regular sampling cadence, so original variable frame delays may change. Palette limits are 32, 64, 128, or 256 entries, with a slot reserved for transparency; a limit is not a promise that every entry is used. Sierra Lite uses error diffusion for gradients, Bayer uses an ordered pattern with scale 0 to 5, and None favors flat colors but may expose banding. Changing rectangles are reprocessed to limit unnecessary dither noise. Output looping can play once, loop forever, or repeat one, two, or four times after the first pass. Transparent pixels are retained where possible through palette generation, but GIF offers only binary transparency and its edges need visual review.

Watch at least two full cycles when the output loops. Confirm that the trim includes the start and finish of the action, the seam does not jump unexpectedly, and small text remains readable at the size used by the page or chat. Compare gradients, shadows, brand colors, cursor trails, and transparent edges. Open the downloaded file against a representative background because a preview surface can conceal edge artifacts. Finally, verify the attachment limit with the actual saved bytes; upload systems may have other restrictions such as dimensions, duration, or animation support.

• Start by reducing width; inspect small text and the point of the animation at its intended display size.
• Lower frame rate gradually and watch fast gestures, cursor motion, and the transition from the last frame to the first.
• Compare downloaded bytes and transparency on both light and dark surfaces; a successful encode does not guarantee a smaller GIF.

The selected GIF is processed by FFmpeg inside this tab, and the result is downloaded locally. The ordinary optimization path does not send the media to a server or require a login. This is useful for unreleased product interfaces, customer support recordings, internal examples, classroom captures, or personal animations. Initial engine loading still needs network access, and the browser needs enough memory for decoded frames and palette analysis. Keep the tab open while processing and use cancellation or reset when abandoning a candidate.

Reducing size does not redact the images. Customer names, email addresses, notifications, internal URLs, and account details remain visible if they are in the retained frames. Review the content before posting, including brief frames that are easy to miss during playback. Cropping, blurring, or redrawing sensitive information requires a separate editing workflow. A locally generated file is still a file on the device and must be handled according to the rules for its contents.

Use a dedicated animation editor or desktop optimizer for exact per-frame delays, disposal control, lossless frame optimization, palette inspection, batch reports, or carefully preserved archival structures. This page handles one GIF and one continuous range. It resamples motion and constructs a new palette, so it cannot promise identical frames, unchanged timing, or a smaller output. Very large dimensions, long animations, and many frames can exhaust browser memory. Static GIFs can be read, but a PNG or WebP may serve a still image more effectively. Audio is not part of GIF, and this optimizer does not add it.

• Use video when the destination accepts MP4 and you need long duration, sound, full-color detail, or a much more efficient playback format.
• Keep the original for archival use, exact frame timing, source palette preservation, or a controlled accessibility and editorial workflow.