A brief GIF can demonstrate a cursor action or repeat a small visual moment without a player interface. The most useful GIFs have a clear start, a short action, and a tolerable transition back to the beginning. ERITHRA converts a selected video section into an endlessly looping GIF.
Keep the selection small
Choose one video no larger than 50 MB. Enter Start time in seconds and Duration to export between 0.1 and 15 seconds. The requested section must fit within the source. The browser must be able to read a finite positive duration before the export can proceed.
Choose an even output width between 32 and 1920 pixels. Height is calculated proportionally rather than entered separately. Set Frames per second between 1 and 20. More frames can make motion smoother, but they also mean more images to encode and do not guarantee a compact output.
Select Process media. A roughly 32 MB processing engine downloads on first use, and the conversion runs in a single-thread WebAssembly worker. Keep the tab open and allow time for both loading and encoding.
Plan a five-second demonstration
Suppose a 1920 by 1080 recording shows the desired action beginning at second 10. Set start to 10, duration to 5, width to 480, and frame rate to 10. The requested interval ends at second 15, and proportional scaling produces a 480 by 270 image.
At 10 frames per second, a five-second interval requests roughly 50 frames. This describes the animation settings, not a guaranteed output byte size. Complex motion and color variation can still create a relatively large GIF.
Watch the output loop several times. Confirm that the action is understandable at the reduced width and that the return to the opening frame is not confusing. GIF output does not carry the source video’s audio, so the visual must communicate independently of narration.
Review the right delivery format
GIF is not automatically smaller than MP4. Compare the actual output size and consider whether a short video would better suit the destination. The tool does not provide a sophisticated palette-editing workflow or guarantee that gradients and fine details look identical to the source.
Processing stays in your browser, with a two-minute execution limit and potentially substantial memory use. Timing errors may require a clean video export, and unsupported codecs can fail. Keep the source. Use Video Trimmer for a normal MP4 excerpt, or Video Resizer when a proportional video copy is more suitable than an animated image.