Common recommendations, not fixed policies

Practical GIF Size & Settings Guide

Use these settings as a reliable first export. The right result is the smallest file that still looks clear in its real destination.

Platform limits change.

GIF Panel deliberately avoids presenting one account tier or an old upload cap as a permanent rule. Test the actual destination before you rely on a strict maximum.

Practical starting presets

Use caseWidthDurationFPSWorking target
Reaction GIF in chat320–480 px2–6 sec10–15Aim below 8 MB, then test
Emoji or small sticker128–320 px1–3 sec10–15Aim near or below 1 MB
Website illustration480–720 px2–6 sec10–15Smallest clear result; consider MP4/WebM
Documentation demo600–900 px3–10 sec8–12Readable text before maximum smoothness

Reduce size in the right order

  1. Trim first. Remove time that does not help the message.
  2. Crop empty space. Keep the subject, not an unused canvas.
  3. Resize dimensions. Pixel count is often the biggest lever.
  4. Lower FPS only as needed. Stop before motion becomes distracting.
  5. Compress last. Compare the result at its real display size.

Recommendations by destination

Discord and messaging apps

Favor a short loop and a moderate width. If a GIF remains hard to upload after trimming and resizing, an MP4 may be a better fit when the destination supports it.

Slack and workplace chat

Prioritize readable text and quick loading. A lower frame rate is often fine for interface demos, while reactions benefit more from a clean short loop.

Twitter/X, Reddit, and social feeds

Expect some services to transform uploads into video. Keep the source MP4 when that format meets the goal; convert to GIF only for a workflow that requires it.

Websites

GIF is broadly compatible but inefficient for video-like content. Use an image GIF for simple loops; consider MP4 or WebM for larger, photographic animation.

FAQ

What is a safe starting size for a reaction GIF?
Start around 320–480 pixels wide, 2–6 seconds long, and 10–15 FPS. Then test the actual destination and reduce dimensions or duration before using heavy compression.
Why does GIF file size grow so quickly?
Dimensions, frame count, duration, motion, and color complexity all add data. Doubling both width and height creates roughly four times as many pixels per frame.
Should I use MP4 instead?
For video-like animation on a destination that supports video, MP4 is usually more efficient. Keep GIF for workflows that specifically need a .gif or automatic image-style looping.
Are the numbers on this page official platform limits?
No. They are practical starting targets. Platform policies and account tiers can change, so always check the destination when a strict upload limit matters.