Choosing the right frame delay
The delay is how long each frame stays on screen. GIF stores it in hundredths of a second, so the tool rounds your value to the nearest 10 ms. Some starting points:
- 40โ100 ms (10โ25 fps): smooth motion from video stills or burst photos.
- 200โ500 ms: step-by-step screenshots, before-and-after pairs and simple slideshows.
- 1,000 ms or more: text slides, or a product shown from several angles.
Very short delays are unreliable: many browsers show frames of 10 ms or less for about 100 ms, so the minimum here is 20 ms. When a single frame, such as a title or the final result, should hold longer, tick "Set a different delay for each frame" and type a longer value under that frame.
Loop settings matter too. "Loop forever" suits reactions and banners. "Play N times" writes a repeat count into the file so the whole sequence runs the number of times you choose, although some apps ignore it and loop anyway.
How to keep your GIF file size small
GIF compresses flat colours well, but photos and fine detail grow quickly, because every frame is stored as a full picture. File size rises with width, height and frame count, so these steps help most, roughly in order:
- Lower the width. Going from 640 to 480 px removes almost half the pixels in every frame.
- Use fewer frames. Drop near-duplicates and raise the delay so the animation lasts as long.
- Reduce colours. 128 or 64 colours are often enough for screenshots, charts and cartoons.
- Try a shared palette. One palette for all frames saves a little space and stops colours shimmering.
You don't need to shrink big source photos first; the tool scales them for you. If you only need a still image, the image compressor makes JPG and WebP files far smaller than any GIF.
GIF limits worth knowing
Each frame holds at most 256 colours, so smooth gradients and skin tones can show banding; this encoder does not add dithering. Pixels are either fully solid or fully transparent, with no soft edges, so the tool fills transparent PNG areas with your background colour to keep edges clean.
Chat apps and social networks set their own GIF size limits, and some turn uploads into videos; check the platform's help page if a file is rejected. For a cleaner result, crop frames to the same framing with the image crop tool, or place stills side by side with the photo collage maker when you don't need motion. To compare formats, read which image format is best for the web.