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Guides, comparisons and how-tos for GIF, WebP, AVIF, HEIC and video formats.

How to Resize a GIF: Width, Height, and File Size Explained

Learn how to resize a GIF to specific dimensions or reduce its file size. Covers resolution, aspect ratio, and the right scale for every platform.

Converting PNG to WebP can cut file sizes by 25–50% with no visible quality loss. Here's how to do it and when it makes sense.

Convert animated WebP files to MP4 video in your browser. Learn when and why to convert, and how to get the best quality output.

Learn how to convert MP4 video to GIF online, free, and without uploading your file to any server. Tips for keeping file size small and quality high.

File size limits, dimension requirements, and step-by-step instructions for creating GIFs that work perfectly on every major platform.

AVIF delivers smaller files than JPEG and WebP with better quality. Here's what it is, how it works, and how to use it today.

iPhone photos are saved as HEIC by default but won't open everywhere. Here's how to convert HEIC to JPG on any device, for free.

Reduce GIF file size by up to 70% using palette optimisation, frame reduction, and resolution scaling — without visible quality loss.

Compare WebP and GIF side by side — file size, animation support, browser compatibility, and when each format wins.