Guides

Media conversion guides

Practical written answers for everyday video, image, audio, compression, compatibility, and privacy questions.

How to compress a video under 25MB

A practical guide to target-size compression, bitrate, duration, and settings that help videos fit common upload limits.

MOV and MP4 are containers, not just file extensions. This guide explains why that matters for sharing.

iPhone video files often use a MOV container because it fits Apple camera and editing workflows.

Reduce waste first: trim, resize thoughtfully, and avoid pushing bitrate too low for the content.

MP4 with common codecs is usually the safest choice for email attachments.

For WhatsApp sharing, MP4 is typically the safest export format, especially for mixed-device groups.

Bitrate is the amount of media data used per second; duration turns that rate into a final file size.

GIF is simple and silent; MP4 is usually smaller and better for real video.

Local processing keeps selected files on your device for supported tools, but normal website hosting and ads can still process page-level data.

Browser tools are convenient and private, but large files can hit memory, codec, or performance limits.

Choose dimensions based on where the image will be viewed, not just the largest available size.

Create an MP3 from a video you own, while understanding quality and copyright limits.